Emerson MR95 Data Sheet

Bulletin 71.1:MR95

December 2014

MR95 Series Industrial Pressure Regulators

P1757

TYPE MR95L

PRESSURE REDUCING REGULATORS

Figure 1. Typical MR95 Series Industrial Pressure Regulators

P1753

TYPE MR95H

www.fisherregulators.com

D103742X012

Bulletin 71.1:MR95

Specications

This section lists the specications for the MR95 Series regulators. Factory specication such as type, maximum inlet
pressure, maximum temperature, maximum outlet pressure, spring range, orice size and seat material are stamped on the
nameplate fastened on the regulator at the factory.

Available Constructions
Type MR95L: Low-pressure regulator for 2 to 30 psig /

0.14 to 2.1 bar outlet pressures

Type MR95H: High-pressure regulator for 5 to

150 psig / 0.34 to 10.3 bar outlet pressures

Type MR95HP: High-pressure regulator for 15 to

400 psig / 1.0 to 27.6 bar outlet pressures (soft-seated)

Type MR95HT: High-pressure/high-temperature

regulator for 15 to 300 psig / 1.0 to 20.7 bar outlet
pressures (metal seat) and up to 650°F / 343°C

Type MR95LD: Low-pressure differential regulator for

2 to 30 psi / 0.14 to 2.1 bar differential pressures with
handwheel and packing box

Type MR95HD: High-pressure differential regulator for

5 to 150 psi / 0.34 to 10.3 bar differential pressures with
handwheel and packing box

Body and Orice Sizes

1/4 NPT body:

0.284 in. / 7.22 mm orice

1/2 in. / DN 15 body:

0.416 in. / 10.56 mm orice

3/4 and 1 in. / DN 20 and 25 bodies:

0.631 in. / 16.02 mm orice

1-1/2 and 2 in. / DN 40 and 50 bodies

(not available for Types MR95L and MR95LD):

1.142 in. / 29 mm orice

End Connection Styles

NPT, SWE and Welded and Integral CL150 RF,

CL300 RF, CL600 RF and PN 16/25/40 RF;
all sizes are fabricated with slip-on anges (for welded
end connections) and are 14 in. face-to-face
(EN anged-356 mm face-to-face)

See Tables 1 and 2

Maximum Cold Working Pressures of Body Size
and Material

(1)

See Table 4

Outlet or Differential Pressure Ranges

(1)

See Table 3

Maximum Temperature Ranges of Diaphragm and
Seat Materials

Fluorocarbon (FKM)
Ethylenepropylene (EPDM)
Peruoroelastomer (FFKM)

Polytetrauoroethylene (PTFE)

Stainless steel (SST)

(1)(2)

MATERIAL TEMPERATURE RANGE

Nitrile (NBR)

Neoprene (CR)

(3)

-40 to 180°F / -40 to 82°C

-40 to 180°F / -40 to 82°C
0 to 300°F / -18 to 149°C
20 to 275°F / -7 to 135°C
0 to 425°F / -18 to 218°C

-40 to 400°F / -40 to 204°C

-40 to 650°F / -40 to 343°C

Maximum Temperature Ranges of
Body Materials

SPRING CASE MATERIALS

Aluminum-Bronze

(1)(2)

BODY AND

Gray Cast Iron

WCC steel

LCC steel

Stainless steel

®

Monel

Hastelloy® C

TEMPERATURE RANGE

(4)

(4)

(4)

-20 to 406°F / -29 to 208°C

-20 to 650°F / -29 to 343°C

-40 to 650°F / -40 to 343°C

-40 to 550°F / -40 to 288°C

-40 to 550°F / -40 to 288°C

-40 to 550°F / -40 to 288°C

-40 to 500°F / -40 to 260°C

Spring Case Construction
Drilled Untapped Hole:

Standard for Types MR95L, MR95H, MR95HP
and MR95HT

1/4 NPT Vent:

Standard for Types MR95LD and MR95HD
Optional for Types MR95L, MR95H, MR95HP
and MR95HT

Pressure Setting Adjustment
Adjusting screw:

Standard for Types MR95L, MR95H, MR95HP
and MR95HT only

Handwheel:

Standard for Types MR95LD and MR95HD
Optional for 1/2 in. / DN 15 body size of
Types MR95L, MR95H, MR95HP and MR95HT

Tee handle:

Optional for other body sizes (except 1/2 in. /
DN 15) of Types MR95L, MR95H, MR95HP
and MR95HT

Pressure Registration

Internal or External

Typical Regulating Capacities

Air: See Tables 10, 11, 12, 13 and 14

Steam: See Tables 15, 16, 17, 18 and 19
Water: See Tables 20, 21, 22, 23 and 24

Shutoff Classication Per ANSI/FCI 70-3-2004

Metal Seats: Class IV
Elastomer Seats: Class VI or better

PTFE: Class lV
Flow and Sizing Coefcients

See Table 5

Relief Sizing Coefcients for MR95 Series Regulators
with Reduced Flow Orices

See Table 6

1. The pressure/temperature limits in this Bulletin, and any applicable standard or code limitation for this regulator should not be exceeded.

2. Pressures and/or the body end connection may decrease these maximum temperatures.

3. Fluorocarbon (FKM) is limited to 200°F / 93°C hot water.

4. Meets API 614 requirements (with Stainless steel trim).

- continued -

Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.

2

Specications (continued)

Bulletin 71.1:MR95

Main Valve Construction Materials

See Table 8

Trim Materials

See Table 7

Product Dimension

See Figure 3

Common Services and Material Compatibility

See Table 9

Introduction

The MR95 Series regulators are compact, large-capacity,
direct-operated pressure regulators (see Figure 1). The units
are available in 1/4 NPT through 2 in. / DN 50 sizes and are
offered in several different end connection congurations.
They are designed to handle pressures up to 1000 psig /

68.9 bar and temperatures up to 650°F / 343°C.

These products can help solve the toughest pressure control
applications. Typical applications include superheated steam,
steam injection, steam tracing, nitrogen purging, boiler feed
water, process chemicals, cooling water, test xtures, wash
tanks, sterilizers/autoclaves, fuel lines, pneumatic supply and
many others.

Features

• Handwheels/Tee Handles—Allow easy pressure

setting changes and are standard on Types MR95LD
and MR95HD, and optional on the Types MR95L,
MR95H, MR95HP and MR95HT regulators.

• Versatile—Can be used with all process media

including air, steam, gas, water, liquids (oils and
process chemicals) and oxygen.

• Tight Shutoff With Elastomer Seats—Metal seats

available for high temperatures.

• Direct-Operated—Design maximizes speed

of response.

• Robust—Up to 1000 psig / 68.9 bar inlet pressure.

• P1 = P2—Inlet equals outlet rating in Types MR95H and

MR95HD up to 300 psig / 20.7 bar.

• Rugged Construction—Available in a variety of body

and spring case materials to address the toughest service
conditions. Severe service elastomers and corrosion
resistant trims are also available and provide excellent
uid compatibility.

Approximate Weights
MR95H Series

1/4 NPT body: 5 lbs / 2.3 kg
1/2 in. / DN 15 body: 10 lbs / 4.5 kg
3/4 and 1 in. / DN 20 and 25 bodies:
22 lbs / 10 kg
1-1/2 and 2 in. / DN 40 and 50 bodies:

55 lbs / 25 kg

MR95L Series

1/4 NPT body: 7 lbs / 3.2 kg
1/2 in. / DN 15 body: 15 lbs / 6.8 kg
3/4 and 1 in. / DN 20 and 25 bodies:
35 lbs / 16 kg

• Differential Pressure Capability—Spring-loaded

Polytetrauoroethylene (PTFE) packing and
tapped connections permit pressure loading of the
Types MR95LD and MR95HD spring cases.

• Special Service Capabilities—Optional materials

are available for applications handling sour gases,
cryogenics and superheated steam.

• Large Turndown Ratio—No need for low Cv trims at

low ows.

• Graphite Gaskets—For high temperature applications

up to 650°F / 343°C (optional).

• Set Pressures up to 400 psig / 27.6 bar

• Multiple End Connection Options—To match

your application.

• Easy Maintenance—Seating parts are easily accessible

by removing the plug on the bottom of the regulator.

• API 614 Compliant—Steel and Stainless steel
constructions meet API 614 requirements.

Principle of Operation

The MR95 Series (refer to Figure 2) is a direct-operated
regulator. Downstream pressure is registered internally
or externally through a control line to the under side of
the diaphragm. When the downstream pressure is at or
above the set pressure, the disk is held against the orice,
restricting uid ow through the regulator. When demand
increases, downstream pressure drops slightly allowing the
spring to extend, moving the stem down and the disk away
from the orice. This allows uid ow through the body to
the downstream system. Types MR95H, MR95L, MR95HP
and MR95HT use spring force to regulate outlet pressure.
Types MR95HD and MR95LD use spring force to maintain
a differential pressure between spring case loading
pressure and outlet pressure.

3

Bulletin 71.1:MR95

ADJUSTING SCREW

CONTROL SPRING

DIAPHRAGM

PITOT TUBE

STEM

ORIFICE

VALVE PLUG

FRONT AND INTERNAL VIEW OF

TYPE MR95H WITH INTERNAL

PRESSURE REGISTRATION

CONTROL LINE TAP

BACK VIEW OF

1/2 IN. / DN 15 TYPE MR95H

WITH EXTERNAL

PRESSURE REGISTRATION

INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE

Figure 2. MR95 Series Operational Schematics

4

SIDE AND INTERNAL VIEW OF

3/4 TO 2 IN. / DN 20 TO 50

TYPE MR95H WITH EXTERNAL

PRESSURE REGISTRATION

(ALSO TYPICAL OF TYPE MR95L,

1/2 TO 2 IN. / DN 15 TO 50 BODIES)

Type 95HD Differential Pressure Reducing Regulator

M1006

October 2006

Type 95HD

HANDWHEEL

CONTROL SPRING

PRESSURE A*
(SPRING CASE
LOADING
PRESSURE)

Bulletin 71.1:MR95

DIAPHRAGM

PITOT TUBE

STEM

ORIFICE

VALVE PLUG

FRONT AND INTERNAL VIEW OF

TYPE MR95HD WITH INTERNAL PRESSURE REGISTRATION

PRESSURE A +
SPRING SETTING =
PRESSURE B

PRESSURE B
(OUTLET
PRESSURE)

TYPE MR95HD WITH EXTERNAL PRESSURE REGISTRATION

BACK VIEW OF

SPRING

GASKET

TYPE MR95H WITH 2 METAL DIAPHRAGMS (ALSO TYPICAL OF

TYPES MR95HT AND MR95L EXCEPT FOR TYPE MR95L WITH 1/4 NPT

BODY SIZE, 2 to 6 psi / 0.14 to 0.41 bar RANGE)

METAL DIAPHRAGMS

SPRING

GASKET

TYPE MR95L (1/4 NPT, 2 to 6 psi / 0.14 to 0.41 bar RANGE)

WITH METAL DIAPHRAGM

CONTROL LINE TAP

METAL DIAPHRAGM

INLET PRESSURE
OUTLET PRESSURE
LOADING PRESSURE

*PRESSURE A MAY BE SUPPLIED BY ANOTHER PRESSURE SYSTEM OR A MANUAL LOADING REGULATOR.

Figure 2. MR95 Series Operational Schematics (continued)

5

Bulletin 71.1:MR95

Table 1. Types MR95L and MR95LD Regulators Body Constructions

BODY SIzE BODY CONSTRUCTION END CONNECTION

1/4 NPT Without Control Line and Gauge Port NPT

Without Control Line and Gauge Port

1/2 in. / DN 15

With Control Line but Without Gauge Port

Without Control Line and Gauge Port

3/4 in. / DN 20

1 in. / DN 25

- Shaded areas indicate that the construction is available.

- Blank areas indicate that you need to contact your local Sales Ofce for the availability of the constructions.

With Control Line but Without Gauge Port

With Gauge Port but Without Control Line

Without Control Line and Gauge Port

With Control Line but Without Gauge Port

With Gauge Port but Without Control Line

NPT

SWE

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

SWE

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

SWE

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

BODY MATERIAL

Gray Cast Iron

LCC or WCC Steel

CF8M Stainless Steel

CF3M Stainless Steel

C

®

or Hastelloy

®

Monel

®

is a mark owned by Special Metals Corporation.

Monel
Hastelloy® C is a mark owned by Haynes International, Inc.

6

Table 2. Types MR95H, MR95HD, MR95HT and MR95HP Regulators Body Constructions

BODY SIzE

1/4 NPT Without Gauge Port and Control Line NPT

Without Control Line and Gauge Port

1/2 in. / DN 15

With Control Line but Without Gauge Port

Without Gauge Port and Control Line

3/4 in. / DN 20

With Control Line but Without Gauge Port

With Gauge Port but Without Control Line

1 in. / DN 25 Without Gauge Port and Control Line

- Shaded areas indicate that the construction is available.

- Blank areas indicate that you need to contact your local Sales Ofce for the availability of the constructions.

1. Gray cast iron body material is available for Types MR95H and MR95HD only.

BODY

CONSTRUCTION

END CONNECTION

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/40 RF

Integral CL150 RF

Integral CL300 RF

Integral CL600 RF

Integral PN 16/25/40 RF

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/60 RF

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/40 RF

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/60 RF

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/60 RF

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/40 RF

Integral CL150 RF

Integral CL300 RF

Integral CL600 RF

Integral PN 16/25/40 RF

Bulletin 71.1:MR95

BODY MATERIAL

C

®

or Hastelloy

®

CF8M Stainless Steel

CF3M Stainless Steel

Monel

NPT

SWE

NPT

NPT

SWE

NPT

NPT

NPT

SWE

(1)

Gray Cast Iron

LCC or WCC Steel

Aluminum-Bronze

®

Monel

is a mark owned by Special Metals Corporation.

Hastelloy® C is a mark owned by Haynes International, Inc.

- continued -

7

Bulletin 71.1:MR95

Table 2. Types MR95H, MR95HD, MR95HT and MR95HP Regulators Body Constructions (continued)

BODY SIzE

With Control Line but Without Gauge Port

1 in. / DN 25

With Gauge Port but Without Control Line

Without Gauge Port and Control Line

1-1/2 in. / DN 40

With Control line but Without Gauge Port

With Gauge Port but Without Control Line

Without Gauge Port and Control Line

2 in. / DN 50

With Control Line but Without Gauge Port

With Gauge Port but Without Control Line

- Shaded areas indicate that the construction is available.

- Blank areas indicate that you need to contact your local Sales Ofce for the availability of the constructions.

1. Gray cast iron body material is available for Types MR95H and MR95HD only.

BODY

CONSTRUCTION

END CONNECTION

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

SWE

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

SWE

Welded CL150 RF

Welded CL300 RF

Welded CL600 RF

Welded PN 16/25/40 RF

Integral CL150 RF

Integral CL300 RF

Integral CL600 RF

Integral PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

NPT

Welded CL150 RF

Welded CL300 RF

Welded PN 16/25/40 RF

BODY MATERIAL

(1)

Gray Cast Iron

LCC or WCC Steel

CF8M Stainless Steel

C

®

or Hastelloy

®

Aluminum-Bronze

CF3M Stainless Steel

Monel

®

Monel

is a mark owned by Special Metals Corporation.

Hastelloy® C is a mark owned by Haynes International, Inc.

8

Bulletin 71.1:MR95

Table 3. Body Sizes, Pressure Ranges and Spring Information

TYPE

MR95L

and

MR95LD

MR95H

and

MR95HD

MR95HT

MR95HP

1. For Types MR95LD and MR95HD regulators, the pressure ranges indicate the differential pressure that can be obtained with the indicated spring. The differential pressure
(spring setting) is added to the spring case loading pressure to determine the actual outlet pressure.

2. Springs meet NACE MR0175-2002 and NACE MR0103 requirements only for applications in which the spring is not exposed to the sour gas.

BODY SIzE

In. DN psi/psig bar In. mm In. mm

1/4 - - - -

1/2 15

3/4

and 1

3/4

and 1

1/4 - - - -

1/2 15

3/4

and 1

3/4

and 1

1-1/2
and 2

1/4 - - - -

1/2 15

3/4

and 1

1-1/2

and 2

1/4 - - - -

1/2 15

3/4

and 1

1-1/2

and 2

OUTLET OR DIFFERENTIAL

PRESSURE RANGE

2 to 6 0.14 to 0.41 0.148 3.76 2.00 50.8 Zinc-plated steel 1E392527022 Yellow

5 to 15 0.34 to 1.0 0.170 4.32 2.00 50.8 Zinc-plated steel ERAA01888A0 Green

13 to 30 0.90 to 2.1 0.207 5.26 1.94 49.2 Powder-coated steel ERAA01889A0 Red

2 to 6 0.14 to 0.41 0.207 5.26 2.50 63.5 Powder-coated steel ERCA04288A0 Yellow

5 to 15 0.34 to 1.0 0.234 5.94 2.60 65.9 Powder-coated steel ERAA01910A0 Green

13 to 30 0.90 to 2.1 0.283 7.19 2.44 62.0 Powder-coated steel ERAA01911A0 Red

2 to 6 0.14 to 0.41 0.306 7.77 4.00 102 Powder-coated steel 1E398927022 Yellow

20

and 25

and 25

and 25

and 25

and 50

and 25

and 50

and 25

and 50

5 to 15 0.34 to 1.0 0.343 8.71 4.00 102 Powder-coated steel 1E399027142 Green

13 to 30 0.90 to 2.1 0.406 10.31 4.00 102 Powder-coated steel 1E399127162 Red

2 to 6 0.14 to 0.41 0.306 7.77 4.00 102 Powder-coated Stainless steel 1E3989X0052 Yellow

20

5 to 15 0.34 to 1.0 0.375 9.53 3.88 98.6 Stainless steel 1K762537022 Unpainted

13 to 30 0.90 to 2.1 0.437 11.1 4.00 102 Stainless steel 11A8269X012 Unpainted

15 to 30 1.0 to 2.1 0.148 3.76 2.00 50.8 Zinc-plated steel 1E392527022 Yellow

25 to 75 1.7 to 5.2 0.170 4.32 2.00 50.8 Zinc-plated steel ERAA01888A0 Green

70 to 150 4.8 to 10.3 0.207 5.26 1.94 49.2 Powder-coated steel ERAA01889A0 Red

15 to 30 1.0 to 2.1 0.207 5.26 2.50 63.5 Powder-coated steel ERCA04288A0 Yellow

25 to 75 1.7 to 5.2 0.234 5.94 2.60 65.9 Powder-coated steel ERAA01910A0 Green

70 to 150 4.8 to 10.3 0.283 7.19 2.44 62.0 Powder-coated steel ERAA01911A0 Red

15 to 30 1.0 to 2.1 0.306 7.77 4.00 102 Powder-coated steel 1E398927022 Yellow

20

25 to 75 1.7 to 5.2 0.343 8.71 4.00 102 Powder-coated steel 1E399027142 Green

70 to 150 4.8 to 10.3 0.406 10.31 4.00 102 Powder-coated steel 1E399127162 Red

15 to 30 1.0 to 2.1 0.306 7.77 4.00 102 Powder-coated Stainless steel 1E3989X0052 Yellow

20

25 to 75 1.7 to 5.2 0.375 9.53 3.88 98.6 Stainless steel 1K762537022 Unpainted

70 to 150 4.8 to 10.3 0.437 11.1 4.00 102 Stainless steel 11A8269X012 Unpainted

5 to 80 0.34 to 5.5 0.500 12.7 6.50 165 Powder-coated steel ERCA04290A0

40

60 to 120 4.1 to 8.3 0.562 14.3 6.56 167 Powder-coated steel ERAA01893A0 Light Gray

100 to 140 6.9 to 9.7 0.594 15.1 6.56 167 Enamel-coated steel ERAA01894A0 Yellow

120 to 150 8.3 to 10.3 0.625 15.9 6.57 167 Powder-coated steel 1P7888X0022 Black

15 to 100 1.0 to 6.9 0.192 4.88 2.00 50.8 Inconel

80 to 300 5.5 to 20.7 0.281 7.14 2.00 50.8 Inconel

15 to 100 1.0 to 6.9 0.281 7.14 2.50 63.5 Inconel

80 to 300 5.5 to 20.7 0.375 9.53 2.60 66.0 Inconel

15 to 100 1.0 to 6.9 0.437 11.1 4.08 104 17-4 PH Stainless steel ERCA04295A0 Unpainted

20

80 to 300 5.5 to 20.7 0.562 14.3 4.08 104 17-4 PH Stainless steel ERCA04296A0 Unpainted

15 to 100 1.0 to 6.9 0.625 15.9

40

60 to 260 4.1 to 17.9 0.812 20.6 6.70 170 17-4 PH Stainless steel ERCA04298A0 Unpainted

15 to 100 1.0 to 6.9 0.192 4.88 2.00 50.8 Inconel

80 to 400 5.5 to 27.6 0.281 7.14 2.00 50.8 Inconel

15 to 100 1.0 to 6.9 0.281 7.14 2.50 63.5 Inconel

80 to 400 5.5 to 27.6 0.375 9.53 2.60 66.0 Inconel

15 to 100 1.0 to 6.9 0.437 11.1 4.08 104 17-4 PH Stainless steel ERCA04295A0 Unpainted

20

80 to 400 5.5 to 27.6 0.562 14.3 4.08 104 17-4 PH Stainless steel ERCA04296A0 Unpainted

15 to 100 1.0 to 6.9 0.625 15.9 6.70 170 17-4 PH Stainless steel ERCA04297A0 Unpainted

40

60 to 300 4.1 to 20.7 0.812 20.6 6.70 170 17-4 PH Stainless steel ERCA04298A0 Unpainted

(1)

SPRING WIRE

DIAMETER

SPRING FREE

LENGTH

6.70 170 17-4 PH Stainless steel ERCA04297A0 Unpainted

SPRING

MATERIAL

(2)

®

®

®

®

®

®

®

®

SPRING PART

NUMBER

Light Blue Stripe

ERCA04292A0 Unpainted

ERCA04291A0 Unpainted

ERCA04294A0 Unpainted

ERCA04293A0 Unpainted

ERCA04292A0 Unpainted

ERCA04291A0 Unpainted

ERCA04294A0 Unpainted

ERCA04293A0 Unpainted

SPRING

COLOR

Black with

®

is a mark owned by Special Metals Corporation.

Inconel

9

Bulletin 71.1:MR95

Table 4. Maximum Cold Working Pressures of Body Size and Material

TYPE BODY SIzE BODY MATERIAL

MAXIMUM INLET PRESSURE MAXIMUM OUTLET PRESSURE

(1)(2)

MAXIMUM SPRING CASE

PRESSURE

psig bar psig bar psig bar

Gray Cast Iron 250 17.2 50 3.4 50 3.4

WCC Steel 300 20.7 125 8.6 125 8.6

MR95L and MR95LD All available sizes

(3)

LCC Steel 300 20.7 125 8.6 125 8.6
CF8M Stainless steel 300 20.7 125 8.6 125 8.6
CF3M Stainless steel 300 20.7 125 8.6 125 8.6

Monel

Hastelloy

®(4)

® C(4)

300 20.7 125 8.6 125 8.6
300 20.7 125 8.6 125 8.6

Gray Cast Iron 250 17.2 250 17.2 250 17.2

WCC Steel 300 20.7 300 20.7 300 20.7

LCC Steel 300 20.7 300 20.7 300 20.7

MR95H and

MR95HD

All available sizes

(3)

CF8M Stainless steel 300 20.7 300 20.7 300 20.7
CF3M Stainless steel 300 20.7 300 20.7 300 20.7

Aluminum-Bronze

Monel

Hastelloy

®(4)

® C(4)

300 20.7 300 20.7 300 20.7

(4)

300 20.7 300 20.7 300 20.7
300 20.7 300 20.7 300 20.7

WCC Steel 1000 68.9 600 41.4 300 20.7

LCC Steel 1000 68.9 600 41.4 300 20.7

MR95HP All available sizes

(3)

CF8M Stainless steel 1000 68.9 550 37.9 300 20.7
CF3M Stainless steel 1000 68.9 550 37.9 300 20.7

Aluminum-Bronze

Monel

Hastelloy

®(4)

® C(4)

1000 68.9 550 37.9 300 20.7

(4)

1000 68.9 550 37.9 300 20.7
1000 68.9 550 37.9 300 20.7

WCC Steel 600 41.4 600 41.4 300 20.7

LCC Steel 600 41.4 600 41.4 300 20.7
CF8M Stainless steel 600 41.4 550 37.9 300 20.7
CF3M Stainless steel 600 41.4 550 37.9 300 20.7

Aluminum-Bronze

Monel

Hastelloy

®(4)

® C(4)

600 41.4 550 37.9 300 20.7

(4)

600 41.4 550 37.9 300 20.7
600 41.4 550 37.9 300 20.7

WCC Steel 600 41.4 450 31.0 300 20.7

MR95HT

1/4 NPT and
1/2 to 1 in. /

DN 15 to 25

LCC Steel 600 41.4 450 31.0 300 20.7

1-1/2 and 2 in. /

DN 40 and 50

CF8M Stainless steel 600 41.4 450 31.0 300 20.7
CF3M Stainless steel 600 41.4 450 31.0 300 20.7

®

Monel

®

Hastelloy

C 600 41.4 450 31.0 300 20.7

600 41.4 450 31.0 300 20.7

Aluminum-Bronze 600 41.4 450 31.0 300 20.7

1. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.

2. The pressure limits given are based on the body size and body materials only. Actual pressure limits of the assembled regulator may decrease and vary depending on the temperature,
body end connection, diaphragm, seat and/or trim material of the regulator.

3. See Tables 1 and 2 for all available body sizes.

4. Not available for 1/4 NPT body size.

Table 5. Flow and Sizing Coefcients for all MR95 Series Regulators

BODY SIzE

In. DN C

1/4 - - - - 1.1 37 1.85 33.6 0.74 0.715 0.62 0.86

1/2 15 2.9 103 5.15 35.5 0.79 0.797 0.70 0.89

3/4 and 1 20 and 25 6.0 221 11.05 36.8 0.88 0.857 0.68 0.94

1-1/2 and 2 40 and 50 18.1 700 35.00 38.7 0.88 0.945 0.65 0.94

2

K

= F

m

L

Table 6. Relief Sizing Coefcients for MR95 Series Regulators with Reduced Flow Orices

In. DN C

1/4 - - - - 28 28

1/2 15 70 67

3/4 and 1 20 and 25 156 156

1-1/2 and 2 40 and 50 482 475

1. The reduced ow orice option offers similar ow capacity as the equivalent 95 series conguration.

Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.

10

WIDE-OPEN COEFFICIENTS

(FOR RELIEF SIZING)

v

C

g

C

s

C

1

K

m

(1)

BODY SIzE WIDE-OPEN COEFFICIENTS FOR

MR95 SERIES REDUCED FLOW OPTION

g

IEC SIZING COEFFICIENTS

X

T

WIDE-OPEN COEFFICIENTS FOR

F

D

LEGACY 95 SERIES

C

g

F

L

Table 7. MR95 Series Trim Materials

TYPE

TRIM

NUMBER

SEAT

1 416 Stainless steel 416 Stainless steel Brass

2 416 Stainless steel 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

3 316 Stainless steel 316 Stainless steel 316 Stainless steel 316 Stainless steel 302 Stainless steel

4 Alloy 6

5 Hastelloy

6 Monel

(1)

®

C Hastelloy® C Hastelloy® C Hastelloy® C Inconel

®

7 Nitrile (NBR) Brass

8 Nitrile (NBR) Brass

MR95L,

MR95LD,

MR95H

and

MR95HD

9 Nitrile (NBR) 316 Stainless steel 316 Stainless steel 316 Stainless steel 302 Stainless steel

10 Nitrile (NBR) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

11 Nitrile (NBR) 416 Stainless steel Brass

12 Fluorocarbon (FKM) Brass

13 Fluorocarbon (FKM) 316 Stainless steel 316 Stainless steel 316 Stainless steel 302 Stainless steel

14 Fluorocarbon (FKM) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

15 Fluorocarbon (FKM) Monel

16 Peruoroelastomer (FFKM) 316 Stainless steel 316 Stainless steel 316 Stainless steel 302 Stainless steel

17 Polytetrauoroethylene (PTFE) Brass

18 Polytetrauoroethylene (PTFE) 316 Stainless steel 316 Stainless steel 316 Stainless steel 302 Stainless steel

19 Polytetrauoroethylene (PTFE) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

20 Ethylenepropylene (EPDM) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

22 416 Stainless steel 416 Stainless steel 416 Stainless steel 416 Stainless steel Inconel

MR95HT

MR95HP

1. Alloy 6 is not available for 1/4 NPT body.

2. 1/4 NPT has brass orice and 316 Stainless steel valve plug.

3. 1-1/2 and 2 in. / DN 40 and 50 bodies have 416 Stainless steel valve plug guide.

23 316 Stainless steel 316 Stainless steel 316 Stainless steel 316 Stainless steel Inconel

24 Alloy 6

(1)

10 Nitrile (NBR) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

14 Fluorocarbon (FKM) 416 Stainless steel 416 Stainless steel 416 Stainless steel 302 Stainless steel

ORIFICE /

VALVE PLUG

Alloy 6

Alloy 6

Monel

Bulletin 71.1:MR95

VALVE PLUG GUIDE

(3)

(1)

®

(2)

(2)

(2)

®

(2)

(1)

316 Stainless steel 316 Stainless steel 302 Stainless steel

®

Monel

(3)

Brass

416 Stainless steel 416 Stainless steel 302 Stainless steel

(3)

(3)

Brass

®

Monel

(3)

Brass

316 Stainless steel 316 Stainless steel Inconel

STEM /

STEM GUIDE

VALVE SPRING

416 Stainless steel 302 Stainless steel

®

Monel

®

Inconel

®

416 Stainless steel 302 Stainless steel

416 Stainless steel 302 Stainless steel

416 Stainless steel 302 Stainless steel

Monel

®

Inconel

®

416 Stainless steel 302 Stainless steel

®

®

®

Table 8. MR95 Series Construction Materials

MAIN VALVE MATERIAL

Body Spring Case Regulator Spring

Gray Cast Iron

LCC/WCC Steel

CF8M/CF3M Stainless steel

Aluminum-Bronze

Hastelloy

Monel

®

C

®

Gray Cast Iron
LCC/WCC Steel

CF8M Stainless steel

Hastelloy® C

1. Gray cast iron spring case is not available for Types MR95LD and MR95HD.

TRIM MATERIAL

Elastomer Seat

Part Name Standard Optional

Diaphragm Neoprene (CR)

302 Stainless steel

PTFE protector available with Neoprene (CR) and Fluorocarbon (FKM)

Disk Nitrile (NBR) Fluorocarbon (FKM), Polytetrauoroethylene (PTFE), Ethylenepropylene (EPDM) or Peruoroelastomer (FFKM)

Disk Holder Brass or 416 Stainless steel 316 Stainless steel, Monel

Valve Plug Guide Brass or 416 Stainless steel 316 Stainless steel, Monel

Orice Brass or 416 Stainless steel 316 Stainless steel, Monel

Stem Assembly 416 Stainless steel 316 Stainless steel, Monel

Metal Seat

®(1)

Monel

Diaphragm 302 Stainless steel

(1)

, Hastelloy® C

Valve Plug 416 Stainless steel 316 Stainless steel, Monel

Valve Plug Guide Brass or 416 Stainless steel 316 Stainless steel, Monel

Orice 416 Stainless steel 316 Stainless steel, Monel

Stem Assembly 416 Stainless steel 316 Stainless steel, Monel

Gasket Composition Graphite

1. Two Diaphragms are used for metal diaphragm except Types MR95L and MR95LD 1/4 NPT Body, range 2 to 6 psig / 0.14 to 0.41 bar.

2. Two Diaphragms are used.

(1)

Monel®

(1)

, Fluorocarbon (FKM)

(1)

, Fluorocarbon (FKM)

Neoprene (CR) and Fluorocarbon (FKM)

(2)

, Ethylenepropylene (EPDM)

(2)

, Ethylenepropylene (EPDM)

®

®

®

®

®

, Hastelloy® C or Alloy 6

®

®

, Hastelloy® C or Alloy 6

®

17-4 PH Stainless steel

or Hastelloy® C

or Hastelloy® C

or Hastelloy® C

or Hastelloy® C

(2)

diaphragm

or Hastelloy® C

or Hastelloy® C

Steel (standard)

302 Stainless steel

(2)

, Monel

(2)

or PTFE protector available with

Inconel

®(1)

, Hastelloy® C

(2)

diaphragm

®

(1)

or

Inconel® is a mark owned by Special Metals Corporation.
Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.

11

Bulletin 71.1:MR95

Table 9. Chemical Compatibility

Material

CORROSION INFORMATION

Material

Fluid

Carbon Steel

Gray Cast Iron

Acetic Acid, Air Free
Acetic Acid Vapors

Acetone

Acetylene

Alcohols

Aluminum Sulfate
Ammonia
Ammonium Chloride
Ammonium Nitrate
Ammonium Sulfate

Ammonium Sulte
Beer
Benzene (Benzol)
Benzoic Acid
Boric Acid

Butane
Calcium Chloride (Alkaline)
Carbon Dioxide, Dry
Carbon Dioxide, Wet
Carbon Disulde

Carbon Tetrachloride
Carbonic Acid
Chlorine Gas, Dry
Chlorine Gas, Wet
Chlorine, Liquid

Chromic Acid
Citric Acid
Coke Oven Gas
Copper Sulfate
Ether

Ethyl Chloride
Ethylene
Ethylene Glycol
Formaldehyde
Formic Acid

Freon, Wet
Freon, Dry
Gasoline, Rened
Glucose
Hydrochloric Acid (Aerated)

Fluid

Acetic Acid (30%)

Acetone

Alcohol, Ethyl
Alcohol, Methyl
Ammonia, Anhydrous
Ammonia, Gas, (Hot)
Benzene
Brine (Calcium Chloride)
Butadiene Gas
Butane, Gas
Butane, Liquid
Carbon Tetrachloride
Chlorine, Dry
Chlorine, Wet
Coke Oven Gas
Ethyl Acetate
Ethylene Glycol
Freon 11
Freon 12

A+—Best possible selection
A—Recommended
B—Minor to moderate effect. Proceed with caution.
C—Unsatisfactory
I.L.—Information lacking

C
C

A
A
A

C

A

C

A

C

C
B

A

C
C

A

B

A

C

A

B
C

A

C
C

C

I.L.

A

C
B

C

A
A

B

I.L.

B
B

A
A

C

Neoprene

(CR)

C
B

A

A+

A

B
C

A

B

A

B
C
C
C
C
C

A

B

A+

C
C

A
A
A

C

A

C
C
C

C
B

A

C
C

A

B

A

C

A

B
C

A

C
C

C
C

A

C
B

C

A
A

B
C

B
B

A
A

C

302 or 304

Stainless Steel

316

B

B

A

A

A

A

A

A

A

A

A

A

A

A

B

B

A

A

B

A

A

A

A

A

A

A

A

A

A

A

A

A

C

B

A

A

A

A

A

A

B

B

B

B

B

B

C

C

C

C

C

B

B

A

A

A

B

B

A

A

A

A

A

A

A

A

A

A

B

B

B

A

A

A

A

A

A

A

C

C

Nitrile
(NBR)

B
C

A
A

C
C
C

A

C

A+

A

C
C
C
B
C

A
A
A

Stainless Steel

416

Stainless Steel

C
C

A
A
A

C

A

C
C
C

B
B

A
A

B

A

C

A
A

B

C

A

C
C
C

C

B

A
A
A

B

A
A
A

C

I.L.
I.L.

A
A

C

Fluorocarbon

(FKM)

B
C
B
C
C
C

A

B
B

A
A
A
A
A

A+

C

A

A+

B

C

®

Monel®Hastelloy

B

A

B

A
A
A

B

A

B
C

A

C

A
A
A
A

A
A
A
A

B

A
A
A

C
C

A

B
B
C

A

A
A
A
A
A

A
A
A
A

C

Hydrochloric Acid (Air free)

A

Hydrogen

A

Hydrogen Peroxide

A

Hydrogen Sulde, Liquid

A

Magnesium Hydroxide

A

Methanol

A

Methyl Ethyl Ketone

A

Natural Gas

A

Nitric Acid

A

Petroleum Oils, Rened

A

Phosphoric Acid (Air Free)

A

Phosphoric Acid Vapors

A

Potassium Chloride

A

Potassium Hydroxide

A

Propane

A

Silver Nitrate

A

Sodium Acetate

A

Sodium Carbonate

A

Sodium Chloride

A

Sodium Chromate

A

Sodium Hydroxide

A

Stearic Acid

A

Sulfur

B

Sulfur Dioxide, Dry

A

Sulfur Trioxide, Dry

A

Sulfuric Acid (Aerated)

A

Sulfuric Acid (Air Free)

A

Sulfurous Acid

A

Trichloroethylene

A

Water, Boiler Feed

A

Water, Distilled

A

Water, Sea

I.L.

Zinc Chloride

A

Zinc Sulfate

A

A
A
A

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

A

B

FLUID INFORMATION

EPDM Fluid

A

Freon 22

A

Freon 114

A

Gasoline

A

Hydrogen Gas

A

Hydrogen Sulde (Dry)

B

Hydrogen Sulde (Wet)

C

Jet Fuel (JP-4)

A

Natural Gas

C

Natural Gas + H

C

Nitric Acid (10%)

C

Nitric Acid (50 to 100%)

C

Nitrogen

C

Oil (Fuel)

C

Propane

C

Sea Water

B

Sulfur Dioxide

A

Sulfuric Acid (to 50%)

C

Sulfuric Acid (50 to 100%)

B

Water (Ambient)
Water at 200°F / 93°C

Fluid

S (Sour Gas)

2

Carbon Steel

C

A

I.L.

C

A

A
A
A

C

A

C
C
B
B

A

C

A
A

C

A

A
A
A
A
A

C
C
C
B
B

A

B
C
C

Neoprene

(CR)

A+

A

B

A
A

B
C

A
A

B
C

A

B

A

B

A

B
C

A

C

Gray Cast Iron

302 or 304

C

C

A

A

A

A

C

A

A

A

A

A

A

A

A

A

C

A

A

A

C

A

C

B

B

A

B

A

A

A

C

A

A

B

A

A

C

B

A

A

A

A

C

A

A

A

A

A

A

A

C

C

C

C

C

B

B

B

C

A

A

A

B

B

C

C

C

A

Stainless Steel

316

Stainless Steel

C

A
A
A
A

A
A
A

B

A

A

B

A
A
A

A
A
A

B

A

A
A
A
A
A

C
C
B

A
A

A

B
C

A

Nitrile
(NBR)

C

A

A+

A

C
C

A

A+

B
C
C

A

A+

A
A

C
C
C

A

B

416

Stainless Steel

C

C

A

A

B

A

C

C

A

A

A

A

A

A

A

A

C

C

A

A

C

B

C

C

C

B

B

A

A

A

B

C

A

A

B

A

B

A

A

A

B

A

B

B

A

A

B

A

B

A

C

C

C

B

C

C

B

A

B

A

B

A

C

A

C

C

B

A

Fluorocarbon

(FKM)

C
B

A
A

C
C

A
A

C

A
A
A
A
A
A
A
A
A
A

B

®

Monel

B

A

B

A
A

A
A
A

B

A

A

I.L.

A
A
A

A
A
A
A
A

A
A
A
A
A

A
A
A
A
A

A
A
A
A

EPDM

A
A

C

A
A
A

I.L.

C
C
C
C

A

C
C

A
A

B
B

A
A

C

®

Hastelloy

®

Monel

is a mark owned by Special Metals Corporation.

Hastelloy® C is a mark owned by Haynes International, Inc.

12

Bulletin 71.1:MR95

Installation

The MR95 Series regulators may be installed in any
position, as long as ow will be in the same direction as that
indicated by the body arrow. The Types MR95H, MR95L,
MR95HT and MR95HP regulators should be installed so
that their spring case vents are protected from anything that
might clog them.

Emerson Process Management Regulator Technologies, Inc.
(Emerson™) provides an instruction manual with every regulator
shipped. Refer to this for complete installation, operation and
maintenance instructions. Included is a complete list of individual
parts and recommended spare parts.

Universal NACE Compliance

Optional materials are available for applications handling sour
gases. These constructions comply with the recommendations
of NACE International sour service standards.

The manufacturing processes and materials used by
Emerson assure that all products specied for sour gas
service comply with the chemical, physical and metallurgical
requirements of NACE MR0175 ISO-2002 and/or
NACE MR0103. Optional materials are available to meet
ANSI/NACE MR0175/ISO 15156, please contact your local
Sales Ofce for special ordering instructions. Customers have
the responsibility to specify correct materials. Environmental
limitations may apply and shall be determined by the user.

Capacity Data

The capacity information on the following pages is based on
three droop factors, 10%, 20% and 40%. Droop is deviation
from the setpoint of the regulator, and is usually stated in
percentage of setpoint value.

For highest capacity and the most accurate control within a
particular type of the MR95 Series regulators, use the lowest
range spring that can be adjusted to the desired setpoint
(see Table 3 for part numbers of appropriate springs for
each body size).

If closer control is necessary, a regulator of larger capacity
or different design should be selected, so that the necessary
ow can be obtained with a smaller droop factor.

Sometimes it may be necessary to interpolate the capacity
table data to determine capacity for outlet settings not given.
To maintain accuracy, it is important when interpolating to
stay within a spring range if possible. The following is a
procedure for interpolating the data to calculate ow:

1. Determine which spring is to be used.

2. Find the two outlet settings (P2a and P2b) that bracket

the actual outlet pressure P2.

3. For a given body size and inlet pressure, nd the

capacity Qa for P2a and Qb for P2b.

4. Use the following formula to determine the interpolated
capacity (Q):

Qb - Qa Qb - Q

P

b - P2a

Example:

P1 = 100 psig / 6.9 bar

1/4 NPT Type MR95H with 15 to 30 psig / 1.0 to 2.1 bar
spring range

P

= 20 psig / 1.4 bar

2

Determine air capacity, Q

Solution:

Qa = 1100 SCFH / 28.8 Nm3/h

P2a = 15 psig / 1.0 bar

Qb = 1700 SCFH / 46.5 Nm3/h

b = 30 psig / 2.1 bar

P

2

Q = 1300 SCFH

Q = 35 Nm

The same interpolation procedure can be
used for different inlet pressures.

Contact your local Sales Ofce if you should have any
questions about selecting the proper regulator.

2

1700 - 1100 1700 - Q

30 - 15 30 - 20

46.5 - 28.8 46.5 - Q

2.1 - 1.0 2.1 - 1.4

3

/h

=

Note

P2b - P

=

=

2

Air Capacities

Regulating capacities at selected pressures and outlet
pressure ows are given in SCFH (60°F and 14.7 psia)
of air. To determine the equivalent capacities for other gases,
multiply the table capacities by the following appropriate
conversion factors: 1.29 for 0.6 specic gravity natural gas,

0.808 for propane, 0.707 for butane or 1.018 for nitrogen.
For gases of other specic gravities, divide by the square root
of the appropriate specic gravity.

Then, if capacity is desired in Nm3/h at 0°C and 1.01325 bar,
multiply SCFH by 0.0268.

Capacities in Tables 10, 11, 12, 13 and 14 are for regulators
using elastomer diaphragms. Depending on regulator
construction, a multiplier must be used to convert to capacities
for regulators using metal diaphragms.

13

Bulletin 71.1:MR95

Table 10. Air Capacities

(1)(2)

in SCFH / Nm3/h for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95L and MR95LD

Regulators with Elastomer Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

2 to 6 /

0.14 to 0.41

5 to 15 /

0.34 to 1.0

13 to 30 /

0.90 to 2.1

1. To obtain capacities for regulators using metal diaphragms, multiply the table values by 0.8.

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar SCFH Nm

5 0.34

10 0.69

15 1.0

20 1.4

30 2.1

20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

30
40
50

75

100
150
200
250

40
50

75

100
150
200
250

Inlet

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

2.8

3.4

5.2

6.9

10.3

13.8

17.2

1/4 NPT 1/2 /15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

740

19.8

910

24.5

950
1400
1600
1800
1800
1800
1800

670

950
1500
1800
2100
2200
2400
2400

600

930
1600
2000
2500
2600
2800
2800

710

970
1200
1700
2100
2500
2900
3000

880
1300
1900
2500
3100
3700
3900

25.4

36.5

43.3

48.3

48.3

48.3

48.3

18.1

25.5

40.4

48.5

56.6

60.3
64
64

16.1

25

42.8

54.9
67

70.6

74.2
76

19

25.9

32.9

44.6

56.3

66.5

76.7

80.5

23.6

35.3

51.8

68.2

83.2

98.1

104

1100
1500
1700
1900
2000
2000
2000

930
1200
1700
2000
2300
2300
2400
2400

830
1200
1900
2300
2700
2800
2800
2800

1100
1400
1700
2200
2700
2900
3100
3100

1400
1800
2500
3200
3600
4000
4000

30.2

41.5

46.9

52.2

53.6

53.6

53.6

24.9

31.6

44.9

53.3

61.7

62.9
64
64

22.3

32

51.4
62

72.7

74.1

75.6
76

29.1

37.5

45.9
59

72

77.5

83.1

82.6

38.6

48.7

67.2

85.6

96.2

107
108

1000
1100
1200
1300
1300
1500
1600
1500

1200
1300
1700
1700
1800
2000
2100
2300

1500
1800
2300
2400
2500
2700
2900
2900

1800
2100
2400
2600
2800
3000
3200
3500

2700
2900
3300
3800
4100
4400
4700

27.2

28.9

32.4

34.1

35.9
39

42.1
41

31.8
36

44.3

46.7

49.1

52.4

55.7

61.2

41.3

47.9

61.1

63.8

66.5

71.6

76.6

78.3
49

56.1

63.2

68.6
74

80.1

86.3

93.1

71

77.7

89.5

101
109

117
125

1500
1600
1700
1800
1800
2000
2100
2100

1900
2000
2400
2500
2700
2900
3000
3200

2200
2500
3000
3300
3500
3800
4100
4100

2900
3200
3600
3800
4000
4400
4700
4800

4200
4500
5000
5500
5900
6300
6600

41.2

42.7

45.5

47.5

49.5

52.6

55.6

56.4

50.6

54.9

63.5

67.7

71.8

76.5

81.1

84.9

59.5

66.7

81.2

87.1

93.1
101
109
110

77.2

86.9

96.6
103
108

117
125

129

113
121

134
147
159
170
176

1200
1400
1800
2300
2700
2400
2100
2000

1700
1900
2500
2800
3200
3500
3700
4300

1600
1900
2600
3000
3500
3900
4300
4700

2000
2200
2300
2900
3500
4000
4500
5000

2400
2700
3400
4000
4900
5900
6600

32.8

37.8

47.7

60.5

73.3
65

56.7

52.8

45.2

52.1

66.1
76

85.9

92.6

99.2

116

42.8

51.4

68.7

80.7

92.8

104

115

126

54.3

57.7

61.2

77

92.8

107

122

134

63

73.2

90.2

107

132
157

178

2200
2500
3200
3500
3900
4000
4000
3800

2700
3100
3800
4300
4700
5200
5700
6100

2500
3000
4200
4800
5300
5900
6600
7200

3400
3600
3900
4900
5800
6300
6800
7900

3500
4100
5200
6400
7700
8900

10,000

59.5

67.9

84.7

94.7
105
106
107
102

72.7

82.8
103

115
127

139

152

164

66.3

81.7

112
127

142
159

177

193

90.8

97.8
105
130
156
170
184

212

93.8
110
141

171

205
240

271

2800
3300
4200
4400
4600
4600
4600
4900

3000
3600
4900
5700
6500
6600
6700
6900

3200
4300
6500
7600
8700
8800
9000
9200

4400
5500
6500
8000
9500

11,000
12,000
12,000

6500

7900
10,000
12,000
14,000
16,000
16,000

74.7

87.5

113

118

123
123
122
131

80.1

97.1

131
153
175

178
180
184

85

115

174
204

233
237

240
247

117

146
176

215

254
282
309

315

174

212
272
333

376
420
429

4600
5200
6300
6700
7100
7400
7600
7900

4700
5800
8000
8700
9400

9800
10,000
11,000

4700

6600
10,000
12,000
13,000
13,000
14,000
14,000

7000

8800
11,000
13,000
15,000
16,000
17,000
17,000

9000
11,000
15,000
20,000
21,000
23,000
23,000

124
139
169
180
191
197
203

212
127

156

215

234

252

264

275

292
126

176
276
310
344
359

373

380
188

237

286
338
391
418
446
458

241
302
415

527

565
604
623

To determine wide-open ow capacity for relief valve sizing of air
at a temperature of 60°F, use the equation for critical pressure
drops (absolute outlet pressure equal to one-half or less than

one-half the absolute inlet pressure).

Q = P

1(abs)Cg

where,

Q = Gas ow, SCFH (60°F and 14.7 psia)

P

= Absolute inlet pressure, psia (add 14.7 psi

1(abs)

to gauge inlet pressure to obtain absolute
inlet pressure)

C

= Wide-open gas sizing coefcient from

g

Table 5

For pressure drops lower than critical (absolute outlet
pressure greater than one-half the absolute inlet pressure),
use the sizing nomographs in Fisher

®

Catalog 10, or the

Fisher Sizing Program.

To obtain capacities in Nm3/h at 0°C and 1.01325 bar,
multiply the capacity determined in SCFH by 0.0268.

14

Steam Capacities

Capacities in Tables 15, 16, 17, 18 and 19 are in lbs/h
of saturated steam. To obtain capacities in kg/h, multiply
the capacities given in the table by 0.4535. Capacities
have been calculated for stainless steel diaphragms only
since steam service exceeds the elastomer diaphragm
temperature limits.

To determine wide-open ow capacity for relief valve sizing
of steam, use the equation for critical pressure drops
(absolute outlet pressure equal to one-half or less than one­half absolute inlet pressure).

Q = P

1(abs)Cs

where,

Q = Steam ow, lbs/h

P

Cs = Wide-open steam sizing coefcient from

= Absolute inlet pressure, psia (add 14.7 psi

1(abs)

to gauge inlet pressure to obtain absolute
inlet pressure)

Table 5

Bulletin 71.1:MR95

Table 11. Air Capacities

(1)(2)

in SCFH / Nm3/h for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95H and MR95HD

Regulators with Elastomer Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 30 /

1.0 to 2.1

25 to 75 /

1.7 to 5.2

70 to 150 /

4.8 to 10.3

1. To obtain capacities for Type MR95HT (metal diaphragm), multiply the table values by 0.6.

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet /

Differential

Setting

psig bar psig bar SCFH Nm

15 1.0

30 2.1

50 3.4

75 5.2

100 6.9

150 10.3

30
40
50

75

100
150
200
250
300

40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175

200
250
300

175

200

225

250
300

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

10.3

13.8

17.2

20.7

8.6

10.3

12.1

13.8

17.2

20.7

12.1

13.8

15.5

17.2

20.7

3400
4200
4900
5600
7000

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

430

11.5

780

20.9
530
640
850

1100
1600
2200
2300
2400

750

1000
1400
1700
2000
2400
2900
3400

1000
1400
1800
2500
3200
3800
4400

2400
3000
3500
4600
5300
5900

2200
2700
3100
3500
4200
4800

14.2

17

22.9

28.8

44.1

59.4

61.4

63.3

20.1

27.4

36.9

46.5

54.8

63.1

76.9

90.7

26.8

38.5

48.8

66.7

84.6
102
119

65.4

79.8

94.2

123

141
159

58.7

73.1

83.6

94.2

112

129

91

114

132
151

188

940

1100
1500
1900
2200
2500
2600
2800

1400
1600
2200
2800
3200
3600
3900
4100

2000
2500
3200
4100
5000
5300
5600

3900
4700
5500
7200
7600
8100

3600
4500
5200
5800
6700
7500

5400
6500
7400
8200

10,000

25.3

29.7

40.1

50.6

59.2

67.8

70.8

73.8

36.2

42.4

58.3

74.2

85.4

96.5
104

111

53.6

68.1

86.2
110
134
142
149

105

127

149
192
205

217

96.6

122

139

157

179
202

144
174
198

221

267

1000
1200
1400
1600
1800
2500
3200
3700
4200

1700
2000
2500
3000
3500
4000
4800
5600

2500
3100
3800
4800
5800
6500
7100

3000
4100
5200
7300
8300
9300

5400
6400
7100
7900
8900

10,000

8900

10,000

11,000
12,000
13,000

27.2

32.6
38

43.7

49.3
68

86.6

99.1

112

45.8

53.7

66.9

80.1

94.1

108
129
150

66.2

83.6

101
128
156

173

191

80.6

109
138
196

222

249

144

172

191

211

240
269

238

272

290
309
346

1700
1900
2200
2400
2700
3300
3900
4300
4700

3000
3400
3900
4400
5100
5800
6400
7000

4500
5200
6200
7300
8500
8900
9300

6700
7700

8600
11,000
12,000
13,000

8900
10,000
11,000
12,000
13,000
15,000

14,000
16,000
17,000
17,000
18,000

44.5

51.4

58.4

64.8

71.2

88.2
105

115

126

81.5

90.3
104

117
137
157
172

186

121

140
165
196

227

238
250

179
205

231

283

313

344

239

277

298
320
360
399

371

429
443
457
485

2100
2500
2800
3700
4600
5700
6900
7200
7400

3500
4100
5400
6700
6600
6400
6400
6400

5900
6500
8100

9500
11,000
12,000
12,000

10,000
12,000
13,000
16,000
16,000
17,000

12,000
14,000
16,000
18,000
20,000
22,000

13,000
16,000
18,000
19,000
23,000

56

65.9

75.8

99.4

123

154
185
192
198

93.8
110
144
179
176

173
172
172

158

175

218

255

292
310
329

278

313

349
420
438
456

323

381
438
495
540
586

357

425
473

521

616

3300
3900
4500
5500
6500
7300
8200
8600
9100

6000
7100
8500

9900
10,000
10,000
11,000
11,000

9500
11,000
13,000
15,000
17,000
17,000
18,000

17,000
18,000
20,000
24,000
25,000
26,000

20,000
23,000
25,000
28,000
30,000
32,000

26,000
31,000
33,000
36,000
40,000

88.3
104
120
147
174
196
219

231

244

161
189

227

264

273

281
284
288

255

287
340
394
447
465
482

445
491

537

630
657
684

525

610
684
758
808
858

709
835
894
954

1070

2300
3100
3800
5200
6500

8400
10,000
12,000
13,000

4000

5600

7600

9600
12,000
15,000
15,000
15,000

5500

8500
10,000
14,000
18,000
18,000
17,000

12,000
15,000
18,000
23,000
24,000
25,000

13,000
17,000
19,000
21,000
25,000
29,000

18,000
25,000
28,000
31,000
37,000

62.8

82.3
102
138
174
226

277
315

354

107
149
203
258
329
401
401
400

147
228

272

382
493
471
448

316
393
470
624
650
677

343
459

512

564
668

771

481
665
747
829
994

4100
5300
6600

8300
10,000
12,000
14,000
16,000
18,000

8000
10,000
13,000
16,000
19,000
21,000
21,000
21,000

12,000
14,000
18,000
22,000
26,000
28,000
29,000

19,000
24,000
28,000
37,000
38,000
40,000

21,000
27,000
31,000
35,000
40,000
45,000

30,000
36,000
41,000
47,000
58,000

110
143
176

223

269

327

385
428
472

214
269
350
431
496
561
568
576

327

385
488
595
702
740

777

519
636

752

985
1030
1070

573

736

838

939
1080
1210

793

961
1110
1260
1560

For pressure drops lower than critical (absolute outlet
pressure greater than one-half absolute inlet pressure),
use the sizing nomographs in the Fisher® Sizing Program.

Water Capacities

All water capacities in Tables 20, 21, 22, 23 and 24 are in
gallons per minute (GPM). Capacities in Tables 20, 21 and
23 are for regulators using only elastomer diaphragms.
Depending on regulator size, a multiplier, given in these

tables, must be used to convert to capacities for regulators
using metal diaphragms.

To determine ow capacity for liquid relief valve sizing, refer
to the Fisher Sizing Program using the C
in Table 5. The K

values listed in Table 5 can be used to

m

coefcients given

v

predict choked ow on liquid service.

To convert capacities to m

3

/h, multiply GPM by 0.2271.

15

Bulletin 71.1:MR95

Table 12. Air Capacities

(1)

in SCFH / Nm3/h for 1-1/2 through 2 in. / DN 40 through 50 Types MR95H and MR95HD Regulators with

Elastomer or Stainless Steel Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

5 to 80 /

0.34 to 5.5

60 to 120 /

4.1 to 8.3

100 to 140 /

6.9 to 97

120 to 150 /

8.3 to 10.3

1. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar SCFH Nm

5 0.34

30 2.1

50 3.4

75 5.2

100 6.9

125 8.6

150 10.3

10
20
30
50

75

100
150
200
250
300

40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175
225

250
300

150

175

200

225

250
300

175

200

225

250
300

Inlet

0.69

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

20.7

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

10.3

13.8

17.2

20.7

8.6

10.3

12.1

15.5

17.2

20.7

10.3

12.1

13.8

15.5

17.2

20.7

12.1

13.8

15.5

17.2

20.7

10% 20% 40% 10% 20% 40%

1000
1600
2100
3200
4100
5000
5500
5900
7500
9000

7900

8100
14,000
20,000
21,000
23,000
29,000
35,000

13,000
19,000
26,000
29,000
32,000
42,000
51,000

28,000
35,000
42,000
56,000
62,000
68,000

33,000
37,000
41,000
49,000
48,000
47,000

40,000
46,000
53,000
63,000
74,000
96,000

38,000
46,000
51,000
55,000
64,000

27.5

41.7
56

84.5

109
134
146
159
200
241

212

216

372
527

568
610

772

934

349
516
697
779

860
1110
1370

753

939
1120
1490
1660
1830

881

987
1090
1300
1290
1270

1070
1240
1410
1700
1990
2560

1030
1240
1360
1480
1710

1-1/2 / 40 2 / 50

Droop Droop

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

1500
2200
2800
4200
5700
7200
7900

8600
10,000
12,000

13,000
14,000
22,000
30,000
33,000
35,000
41,000
47,000

27,000
33,000
41,000
47,000
53,000
60,000
68,000

48,000
59,000
71,000
94,000
97,000

100,000

60,000
65,000
70,000
81,000
84,000
91,000

69,000
83,000
97,000

110,000
120,000
150,000

70,000
80,000
87,000
94,000

110,000

40.7

58.4

76.2

112
153

194

213
231
273
315

340
362
585
807
872

937
1100
1260

724

873
1100
1250
1410
1620
1820

1280
1590
1900
2530
2600
2670

1600
1740
1880
2170
2260
2440

1840
2220
2600
2960
3310
4020

1870
2150
2330
2520
2890

2500
3700
4900
7300

9800
12,000
13,000
13,000
15,000
18,000

21,000
23,000
37,000
50,000
52,000
53,000
57,000
61,000

48,000
52,000
65,000
72,000
78,000
87,000
96,000

68,000
82,000
95,000

120,000
130,000
140,000

81,000
94,000

110,000
130,000
140,000
150,000

94,000

110,000
130,000
150,000
160,000
190,000

110,000

130,000

140,000

150,000

180,000

68.2

99.8

131

195
264

333

347
360
415
471

551

629

987
1340
1380
1420
1530
1640

1290
1400
1750
1920
2090
2330
2570

1830
2190
2560
3290
3560
3840

2160
2520
2890
3610
3730
3980

2520
3020
3520
3910
4310
5110

2980
3450
3770
4080
4710

1000
1600
2200
3300
5000

6600
10,000
14,000
21,000
29,000

10,000
13,000
19,000
26,000
57,000
89,000

100,000

110,000

14,000
21,000
34,000
77,000

120,000
140,000
160,000

33,000
55,000
78,000

120,000
170,000
210,000

38,000
60,000
83,000

130,000
150,000
180,000

38,000
44,000
50,000
81,000

110,000
170,000

38,000
47,000
54,000
61,000
74,000

26.9

42.6

58.3

89.7
134

177

270
363
569

775

275

346
516
687

1540
2390
2700
3010

383
570
925

2050
3180
3700
4220

875

1480
2090
3300
4440
5580

1020
1620
2230
3440
3920
4900

1020
1190
1350
2170
2990
4640

1020
1270
1450
1630
1990

1400
2300
3200
4900
7200

9500
26,000
42,000
47,000
51,000

18,000
22,000
43,000
64,000
86,000

110,000
110,000
110,000

32,000
42,000
67,000

110,000
140,000
150,000
160,000

62,000
82,000

100,000
140,000
180,000
210,000

70,000
90,000

110,000
150,000
170,000
210,000

76,000

100,000
120,000
140,000
160,000
210,000

76,000
93,000

120,000
140,000
190,000

38.6

61.7

84.9

131

193
256

695
1130
1250
1360

471

590
1150
1710
2300
2890
2980
3060

869
1120
1810
2820
3840
4100
4350

1650
2190
2730
3800
4750
5690

1880
2420
2960
4050
4580
5650

2030
2670
3310
3870
4420
5530

2040
2490
3160
3840
5190

2600
4000
5400

8100
15,000
21,000
36,000
50,000
51,000
51,000

30,000
38,000
58,000
79,000
93,000

110,000
110,000
110,000

50,000
55,000
76,000

110,000
150,000
150,000
160,000

71,000
90,000

110,000
150,000
180,000
210,000

86,000

110,000
120,000
160,000
180,000
210,000

100,000
120,000
140,000
160,000
180,000
220,000

110,000
140,000
160,000
180,000
220,000

70.8
107
144
216
392
568

959
1350
1350
1360

814
1010
1560
2110
2500
2890
2980
3060

1340
1490
2030
2960
3900
4120
4350

1910
2410
2920
3930
4810
5690

2310
2830
3340
4360
4820
5750

2710
3260
3800
4310
4830
5860

3080
3650
4190
4730
5810

16

Bulletin 71.1:MR95

Table 13. Air Capacities

(1)(2)

in SCFH / Nm3/h for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Type MR95HP

(Elastomer Diaphragm) Regulator

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

80 to 300 /

5.5 to 20.7

80 to 400 /

5.5 to 27.6

Type MR95HP Only

1. To obtain capacities for Type MR95HT (metal diaphragm), multiply the table values by 0.6. Capacity data for 1000 psig / 69.0 bar inlet is not applicable for Type MR95HT (Type MR95HT
max. inlet = 600 psig / 41.4 bar).

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar SCFH Nm

15 1.0

50 3.4

100 6.9

125 8.6

200 13.8

300 20.7

400 27.6

30
40
50

75

100
150
200
250
300
400
500
600

1000

60

75

100
150
200
250
300
400
500
600

1000

125

150

175

200
250
300
400
500
600

1000

150

175

200

225

250
300
400
500
600

1000

225

250
300
350
400
450
500
600

1000

350
400
450
500
550
600

1000

500
600

1000

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

4.1

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

8.6

10.3

12.1

13.8

17.2

20.7

27.6

34.5

41.4

69.0

10.3

12.1

13.8

15.5

17.2

20.7

27.6

34.5

41.4

69.0

15.5

17.2

20.7

24.1

27.6

31.0

34.5

41.4

69.0

24.1

27.6

31.0

34.5

37.9

41.4

69.0

34.5

41.4

69.0

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

200

5.36

300

8.04

350

9.47

410

10.9
210
220
230
250
370
500
510
520
640
780
910
910

880
920

1000
1100
1300
1400
1600
1700
1700
1800
1800

2000
2100
2200
2400
2600
2800
3100
3100
3200
3200

1400
1500
1600
1700
1800
2000
2200
2500
2700
2000

2300
2600
3000
3200
3300
3500
3700
4000
4500

4000
4400
4700
5000
5300
5600
6300

5700
6500
9000

5.63

5.9

6.17

6.62
10

13.5

13.7

13.9

17.2

20.8

24.4

24.4

23.6

24.7

26.9

30.5
34

38.2

42.4

46.3

46.8

47.4

48.3

54.4

57.3

60.3

63.2

69.1

75.1

81.8

83.6

85.5

85.8

37.1

39.9

42.7

45.2

47.7

52.8
60

65.8

71.5

53

62.3

68.4

80.6

85.1

89.5

93.9

98.3

107
120

106
118
126

135

143

151

169

152

174
241

330
350
400
450
610
770
830
900
950

1000

1100
1100

1500
1600
1600
1800
2100
2200
2300
2400
2500
2500
2500

3100
3300
3500
3700
3900
4100
4300
4400
4500
4500

2300
2400
2600
2700
2900
3200
3500
3900
4300
4000

4000
4200
4700
5100
5400
5600
5800
6200
6900

6800
7200
7600
8000
8400
8800

10,000

9800
11,000
13,000

8.71

9.38

10.7

11.9

16.2

20.5

22.3

24.1

25.5

27.8

30.1

30.1

40.4

41.8

42.5

48.8

55

57.7

60.3

64.7

65.7

66.7
67

84.2

89.1
94
99

105

111

116
119

122
121

60.6

64.9

69.3

73.3

77.3

85.4

93.1

104
114
108

107

113
127

136
144
150
156
167
186

181
194
205

215
225

236
268

263
292

355

610

810
1200
1200
1800
2400
2400
2400
2700
2800
2900
3500

3000
3200
3500
4300
5100
5700
6200
7000
7200
7400
7300

6600
7200
7800
8400
9800

11,000
12,000
12,000
12,000
14,000

4500
5100
5700
6000
6400
7100
8900

10,000
11,000
15,000

8000
9000

11,000
12,000
14,000
15,000
15,000
17,000
22,000

14,000
17,000
18,000
20,000
21,000
23,000
30,000

21,000
26,000
35,000

16.4

21.8

31.5

32

47.9

63.9

64.3

64.6

71.1

75.1
79

93.3

80.4

85.5
94

115

136

152

167
188
193
199
195

176
192
208
224
262
300

312
323
333

381

119
136

153

162

171

190
240
270
301
395

216
242
293
330
368
391
414
461
585

386
444
484
524
564
604
812

559
693
934

790
1100
1600
1900
2600
3300
3300
3300
3600
4100
4600
5000

5100
5300
5700
6600
7500
8200
9000
9300
9500
9600

10,000

10,000
11,000
12,000
13,000
15,000
16,000
18,000
17,000
17,000
19,000

7600
8400
9200
9800

10,000
12,000
14,000
16,000
17,000
21,000

14,000
15,000
17,000
20,000
22,000
23,000
24,000
27,000
31,000

24,000
28,000
30,000
32,000
34,000
36,000
46,000

35,000
42,000
54,000

21.1

29.1

43.6

50.5

69.3

88.2

87.8

87.5

96.8
110

123
135

137

143
154
178
201

221

241
250
254
258

273

277

303
328
354
396
438
480
468
456
514

205
226
247
263
279

311

387
427
467

553

362
396
463

523

583
619
655

727

834

646
761
814
866
919
971

1230

944
1130
1450

1100
1500
1700
2300
2800
3000
3300
3700
4200
4400
4600
4900
5500

6500
6800
7300
8200

9200
10,000
11,000

9300
10,000
11,000
13,000

12,000
13,000
15,000
16,000
19,000
21,000
16,000
18,000
19,000
21,000

9600
11,000
12,000
13,000
14,000
15,000
17,000
19,000
20,000
27,000

16,000
18,000
21,000
24,000
27,000
27,000
28,000
29,000
41,000

25,000
26,000
31,000
35,000
40,000
44,000
57,000

38,000
45,000
61,000

29.6

39.3

46.9

60.5

74.4
81

87.6

100

113
117

124

131

148

174
182
195

221

246
268
289
248

272

296

353

314

357

399
442
497

553

439
479
518

557

257

287

317

340
363
410
454
499
543

722

435
474

553

637

721

736

752

782

1090

677
704
826

949
1070
1190
1530

1010
1210
1640

2500
2900
3200
3800
4300
4700
5000
5400
5800
6100
6400
6700
7400

10,000
10,000
11,000
12,000
14,000
15,000
16,000
14,000
15,000
16,000
18,000

19,000
21,000
23,000
25,000
27,000
29,000
25,000
27,000
28,000
31,000

16,000
17,000
19,000
20,000
22,000
25,000
27,000
29,000
30,000
38,000

27,000
30,000
36,000
42,000
48,000
47,000
46,000
45,000
59,000

40,000
41,000
48,000
55,000
62,000
70,000
85,000

64,000
79,000

100,000

67.3
78

86.3

101

115
125
135

146
156
164

172

179
198

268
276
290
328
367
391
416
379
405
430
478

499
556
613
671
724
776
673
716
759
820

424
468

513

550
587
661

713

765
817

1020

714
796

958
1120
1280
1260
1240
1210
1590

1080
1100
1290
1480
1680
1870
2290

1710
2120
2700

2000
2200
2400
2900
3300
4200
5200
5500
5900
6700
7200
7700
8900

6000
6700

7900
10,000
13,000
15,000
17,000
19,000
21,000
23,000
28,000

13,000
16,000
19,000
21,000
25,000
29,000
33,000
36,000
39,000
46,000

9700
11,000
13,000
14,000
15,000
18,000
22,000
26,000
30,000
40,000

18,000
20,000
23,000
27,000
31,000
34,000
37,000
44,000
56,000

32,000
37,000
42,000
47,000
53,000
58,000
80,000

49,000
59,000
80,000

54.1
59
64

76.4

88.9

114
139
148

157

179
194
205
239

161
180

211
277

343
393
444
510
564
617
741

361
430
499
569
670

771

896
970

1040
1230

261
305
348
380

411
474
592
700
807

1070

479
528
628

723

818
909

1000
1180
1510

850
987

1130
1270
1410
1560
2160

1320
1590
2150

3600
3900
4100
4800
5500
6900
8200

9100
10,000
11,000
12,000
13,000
15,000

11,000
12,000
13,000
17,000
20,000
23,000
25,000
29,000
31,000
33,000
38,000

22,000
26,000
31,000
36,000
40,000
45,000
50,000
54,000
57,000
66,000

17,000
19,000
21,000
23,000
25,000
29,000
36,000
41,000
46,000
65,000

31,000
34,000
40,000
47,000
53,000
57,000
61,000
69,000
87,000

56,000
65,000
73,000
81,000
89,000
96,000

100,000

86,000

110,000
140,000

96.5
104

111

129
147
184
220
245
269
298

323

343
400

295

317

354
450
547
607
667
778
835
893

1030

583
708
834
959

1090
1210
1350
1450
1540
1770

447
507
568
624
679
791
966

1110
1240
1750

830
912

1080
1250
1430
1540
1640
1860
2340

1500
1740
1950
2160
2380
2590
2750

2310
2860
3650

17

Bulletin 71.1:MR95

Table 14. Air Capacities

(1)

in SCFH / Nm3/h for 1-1/2 through 2 in. / DN 40 through 50 Type MR95HP

(Elastomer Diaphragm) Regulator

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

60 to 260 /

4.1 to 17.9

60 to 300 /

4.1 to 20.7

Type MR95HP Only

1. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Denotes capacities limited by boost.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar SCFH Nm

15 1.0

50 3.4

100 6.9

125 8.6

200 13.8

250 17.2

300 20.7

Inlet

10% 20% 40% 10% 20% 40%

30 2.1 4000 108 6000 160 11,000 286 4000 107 6700 179 13,000 338
40 2.8 5000 134 7600 205 13,000 346 5700 152 9300 250 18,000 484

50 3.4 6000 161 9300 249 15,000 405 7400 198 12,000 322 23,000 629

75 5.2 8400 226 13,000 343 21,000 566 11,000 301 26,000 709 38,000 1020
100 6.9 11,000 292 16,000 437 27,000 727 15,000 404 41,000 1100 53,000 1420
150 10.3 12,000 321 20,000 524 31,000 820 43,000 1150 60,000 1620 66,000 1780
200 13.8 13,000 351 23,000 6 11 34,000 913 71,000 1890 80,000 2150 80,000 2150
250 17.2 14,000 379 22,000 596 34,000 924 45,000 1210 81,000 2180 81,000 2180
300 20.7 15,000 407 22,000 582 35,000 934 35,000 937 82,000 2210 82,000 2210
400 27.6 11,000 306 17,000 454 35,000 936 35,000 937 82,000 2210 82,000 2210
500 34.5 7700 205 12,000 327 35,000 938 35,000 937 82,000 2210 82,000 2210
600 41.4 11,000 282 14,000 363 35,000 938 35,000 937 82,000 2210 82,000 2210

1000 69.0 12,000 313 17,000 461 35,000 938 35,000 937 82,000 2210 82,000 2210

60

4.1

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

8.6

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

10.3

12.1

13.8

15.5

17.2

20.7

27.6

34.5

41.4

69.0

15.5

17.2

20.7

24.1

27.6

31.0

34.5

41.4

69.0

19.0

20.7

24.1

27.6

31.0

34.5

37.9

41.4

69.0

24.1

27.6

31.0

34.5

37.9

41.4

69.0

11,000
14,000
19,000
27,000
34,000
42,000
50,000
46,000
42,000
27,000
28,000

29,000
38,000
54,000
59,000
65,000
68,000
71,000
81,000

100,000

23,000
27,000
31,000
34,000
38,000
44,000
54,000
63,000
75,000
77,000

39,000
45,000
57,000
64,000
71,000
79,000

86,000
100,000
130,000

53,000

63,000

73,000

84,000

95,000
110,000
110,000
110,000
160,000

75,000

89,000
100,000
110,000
120,000
130,000
190,000

75

100
150
200
250
300
400
500
600

1000

125

150
200
250
300
400
500
600

1000

150

175

200

225

250
300
400
500
600

1000

225

250
300
350
400
450
500
600

1000

275

300
350
400
450
500
550
600

1000

350
400
450
500
550
600

1000

306
387

521
712

902
1120
1340
1240
1140

730

762

791
1010
1440
1580
1730
1810
1890
2160
2680

616

724

831

920
1010
1190
1440
1680
2010
2060

1040
1200
1520
1710
1910
2110
2300
2710
3450

1430
1680
1960
2250
2540
2820
2950
3070
4400

2010
2380
2690
2990
3180
3360
5090

1-1/2 / 40 2 / 50

Droop Droop

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

21,000
27,000
36,000
51,000
66,000
70,000
75,000
70,000
66,000
54,000
73,000

56,000

75,000
110,000
110,000
110,000
120,000
120,000
130,000
140,000

37,000

44,000

51,000

56,000

60,000

68,000

89,000
110,000
120,000
120,000

68,000

76,000

94,000
110,000
120,000
130,000
140,000
170,000
230,000

94,000
110,000
120,000
140,000
160,000
170,000
180,000
190,000
240,000

140,000
150,000
170,000
200,000
210,000
210,000
330,000

553
712

978
1370
1770
1890
2010
1890
1770
1450
1960

1510
2000
2990
3010
3030
3190
3350
3580
3840

1000
1190
1380
1490
1600
1830
2370
2920
3290
3290

1810
2050
2520
2830
3140
3450
3770
4480
6090

2520
2840
3280
3720
4160
4600
4870
5150
6320

3750
4040
4680
5320
5510
5690
8770

38,000
48,000
63,000
80,000
97,000
97,000
97,000
97,000
97,000
98,000

100,000

86,000
100,000
140,000
150,000
170,000
170,000
180,000
180,000
180,000

71,000

83,000

95,000
100,000

110,000
130,000
140,000
160,000
180,000
190,000

130,000
140,000
170,000
190,000
210,000
230,000
250,000
280,000
290,000

160,000
190,000
210,000
240,000
260,000
290,000
310,000
330,000
390,000

230,000
260,000
280,000
310,000
330,000
350,000
460,000

1020
1280
1700
2140
2590
2600
2600
2600
2600
2630
2690

2290
2760
3700
4100
4500
4610
4720
4710
4780

1900
2220
2550
2750
2960
3360
3870
4380
4750
5100

3380
3770
4570
5100
5630
6160
6690
7390
7690

4400
5000
5670
6340
7000
7670
8200
8740

10,500

6030
6860
7640
8420
8840
9260

12,400

13,000
19,000
27,000
78,000

130,000

92,000
92,000
92,000
92,000
92,000
92,000

40,000

72,000
140,000
180,000
220,000
230,000
230,000
230,000
230,000

26,000

30,000

35,000

41,000

48,000

61,000

73,000

84,000

93,000

94,000

43,000

49,000

62,000

72,000

80,000

88,000

95,000

110,000
140,000

51,000

63,000

81,000

92,000
100,000
120,000
120,000
130,000
180,000

80,000

98,000

110,000
120,000
130,000
140,000
210,000

361
496

722

2100
3480

2450
2450
2450
2450
2450
2450

1080
1930
3620
4760
5910
6030
6030
6030
6030

697
817

938
1110
1290
1640
1940
2250
2490
2520

1150
1320
1650
1920
2150
2360
2540
2860
3760

1370
1700
2160
2470
2790
3100
3240
3380
4840

2140
2620
2960
3290
3490
3700
5600

24,000
39,000

64,000
100,000
140,000
160,000
180,000

180,000
180,000
180,000
180,000

75,000

98,000
150,000
180,000
220,000
230,000
230,000
230,000
230,000

46,000

57,000

67,000

87,000
110,000
150,000
180,000
210,000
240,000
240,000

85,000
100,000
150,000
180,000
210,000
230,000
250,000
290,000
350,000

110,000
130,000
130,000
150,000
170,000
190,000
200,000
210,000
260,000

200,000
170,000
190,000
220,000
230,000
230,000
360,000

642
1050
1720
2800
3880
4340
4800

4800
4800
4800
4800

2010
2640
3890
4950
6020
6170
6170
6170
6170

1240
1520
1800
2340
2890
3980
4830
5710
6430
6430

2270
2810
3900
4770
5530
6200
6800
7850
9380

2820
3550
3610
4100
4580
5060
5360
5660
6950

5360
4450
5150
5850
6060
6260
9650

44,000
57,000

80,000
110,000
150,000
160,000
180,000

180,000
180,000
180,000
180,000

89,000
110,000
150,000
190,000
230,000
240,000
240,000
240,000
250,000

91,000
110,000
130,000
150,000
170,000
210,000
230,000
260,000
280,000
300,000

150,000
170,000
220,000
250,000
270,000
300,000
320,000
360,000
370,000

180,000
200,000
230,000
260,000
290,000
310,000
340,000
360,000
430,000

250,000
280,000
310,000
350,000
360,000
380,000
510,000

1170
1540
2140
3080
4020
4410
4800

4800
4800
4800
4800

2390
2950
4080
5080
6080
6430
6430
6430
6700

2440
2970
3510
4020
4540
5570
6190
7010
7600
8040

4010
4600
5770
6630
7320
8010
8690
9610

10,000

4870
5490
6240
6970
7700
8440
9030
9610

11,500

6640
7540
8400
9260

9730
10,200
13,600

18

Bulletin 71.1:MR95

Table 15. Steam Capacities

(1)

for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95L and MR95LD Regulators with

Metal Diaphragm

PRESSURE REGULATOR BODY SIZE, IN. / DN

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE RANGE,

psig/psi / bar

2 to 6 /

0.14 to 0.41

5 to 15 /

0.34 to 1.0

13 to 30 /

0.90 to 2.1

1. Capacities are based in lbs/h / kg/h of saturated steam.

Outlet/

Differential

Setting

psig bar psig bar lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h

5 0.34

10 0.69

15 1.0

20 1.4

30 2.1

20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

30
40
50

75

100
150
200
250

40
50

75

100
150
200
250

Inlet

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

2.76

3.4

5.2

6.9

10.3

13.8

17.2

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

26

11.8

32

14.5

35

16.1

53

24.1

43

19.3

78

35.4

99
120
150
150
160
160
160
170

110
130
170
200
220
230
230
240

120
150
230
260
300
300
310
320

160
200
230
280
330
380
410
410

230
280
350
420
480
550
550

45.1

52.7

66.3
69

72
72
72

76.7

48.8

57.9

77.9

89.8

102
103
105
108

52.4

69.7

104
120

137

138
141
144

71.8
89

104

127

150

172

188
188

106
128
160
191
220

251

250

100
100

110
130
130

33

15

38

17.4

39

17.5

56

25.4

49

22.4

88

48

21.9

52

23.5

41

18.9

59

26.7

63

110
120
130
150

100
120
130
150
160

100
120
140
150
170

120
140
170
200
230

28.4

79

36.1

93

42.3

83

37.5

72

32.9

69

31.3

61

27.6

67

30.6

87

39.7

97

44.1

50.2

54.8

57.9

67.3

58

26.2

68

30.8

91

41.6

47.5

55

61.1

67.3

73.5

72

32.6

78

35.6

81

37

46.1

55.2

62.7

70.4

78.2

86

39.2

96

43.8

54.5

63.6

77.1

92.5
103

55

25

58

26.6

45

20.3

62

100
100
110

100

110
120
130
140
140

100

110
130
130
140
150
160
170

150
160
180
190
200
220
230

28.2

62

28.2

69

31.3

72

32.8

72

32.9

68

30.8

71

32

83

37.9

86

39.2

93

42.2

45.4

46.9

50.1

79

35.9

89

40.3

47.7

51.9

54.8

59.4

64.1

64.1

47.1

51.5

57.5
60

62.7

68.8

73.5

75.1

68.3

72.6

79.6

86.8

92.4

98.5

103

62

28.1

65

29.7

45

62

28.2

69

62

28.2

62

28.2

24

10.8

33

15.2

52

23.6

62

28.1

72

32.8

76

34.4

83

37.5

83

37.5

22

9.81

33

15

56

25.3

69

31.3

86

39.1

89

40.7

96

43.8

96

43.8

25

11.5

34

15.6

42

19.1

59

26.7

72

32.8

86

39.1

45.4

46.9

32

14.3

46

21

66

30.2

86

39.3

48.5

57.9
61

69
69

33

42
59
69
79
79
83
83

30
42
66
79
93
96
96
96

39
49
59
76
93

100

110
110

50
64
87

110
120
140
140

31.3

31.3

31.3

15

19.1

26.7

31.3
36
36

37.5

37.5

13.5

19.3
30
36

42.2

43.8

43.8

43.8

17.8

22.4

27

34.5

42.2

45.4

48.5

48.5

22.7
29

39.6

50.2

56.3

62.6

62.6

52
55
52

43
46
59
59
62
69

72

79

54
64
81
83
86

93
100
100

65

75

85

91

97
100
110
120

97
100
120
130
140
150
160

20.3

23.5

25

23.5

19.5

20.9

26.9

26.7

28.2

31.3

32.8
36

24.6

29.1

36.6

37.8

39.2

42.2

45.4

45.4

29.3

33.9

38.5

41.2
44

46.9

50.1

54.8

44.1
47

52.7

60.1

64.3

68.8

73.5

110
120
130
140
140
130

96
110
130
150
160
180
200
210

90
110
150
170
180
200
230
250

120
130
140
170
200
220
230
270

130
150
180
220
270
310
340

39.9

50.5

54.9
61

62.6

62.6

59.5

43.8

49.8

60.3

67.7

73.7

81.3

89.2

95.4

40.9

48.5
67

75.8

83.3

92.4

103

113

55.3

58.1

62.5

77.7

91.4

98.7

106
124

57

66.3

83.1

102

121

139

157

160
180
220
230
240
250
260
270

170
210
280
300
320
340
340
380

170
230
350
420
450
450
480
480

250
310
390
450
520
550
590
590

320
390
530
700
730
790
790

74.1
83

99.4

105

111

116
119
124

76.3

93.2

127
137

147

153

156

172

76.8

107
160
190
204
203
219
219

114
142
176
206
236

251

266
266

147
178
240

317

330
360
360

19

Bulletin 71.1:MR95

Table 16. Steam Capacities

(1)

for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95H and MR95HD Regulators with

Metal Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 30 /

1.0 to 2.1

25 to 75 /

1.7 to 5.2

70 to 150 /

4.8 to 10.3

1. Capacities are based in lbs/h / kg/h of saturated steam.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h

15 1.0

30 2.1

50 3.4

75 5.2

100 6.9

150 10.3

30
40
50

75

100
150
200
250
300

40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175

200
250
300

175

200

225

250
300

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

10.3

13.8

17.2

20.7

8.6

10.3

12.1

13.8

17.2

20.7

12.1

13.8

15.5

17.2

20.7

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

11

5.2

21

9.41

27

12.1

45

20.6

56

25.5

88

40

62

14

17
22

28
41

57

59
62

20

27
37

44

52

62

75

88

27
37

47
65
83
98

110

64
80

92
120
140
150

59

72

82

92
110
120

92
110
130
150
180

6.34

7.6

9.98

12.9

18.8

25.8

27

28.2

9.17

12.1

16.7
20

23.5

28.2
34

39.9

12.3

17

21.6

29.5

37.5

44.6

51.6

29.2

36.2

41.9

54.3

62.2

69.2

26.9

32.7

37.3

41.8

49.7

56.4

41.7

51.1

59.3

67.4

83.5

25

29
39
49

57

65
67

72

37

42

57
72

83

93
100
110

54

66

84
110
130
140
140

99
120
140
190
200
210

96
120
140
150
170
190

140
170
200
220
260

11.2

13

17.6

22.3

25.8

29.3

30.5

32.8

17

19.3

26.1

32.9

37.5

42.2

45.8

48.1

24.4

30.2

38.2

48.2

58.7

62.2

65.7

45

56.4

65.5

84.8

89.2
95

43.7

54.2

62.2
69
79
88

65.8

78.7
89

98.2

119

32
37

42
47
65
83
96

110

46

53

66
78

91
100
120
140

68

83
100
130
150
170
180

81
110
140
190
220
240

150
170
190
210
230
260

240
270
290
320
340

14.4

16.7

18.9

21.1

29.3

37.5

43.4

49.3

20.8

24.3
30

35.6

41.1

46.9

56.3

65.7

30.7

37.7

45.7

57

68.3

76.3

83.3

36.6

49.6

62.5

86.8
98

109

66.1

77.7

85.7

94.9

106
118

109

122

134
145
156

50
58
62
70

85
100
110
120

81

91
100
110
130
150
170
180

120
140
160
190
220
230
240

180
200
230
290
310
340

240
270
290
320
340
390

380
430
450
450
470

22.8

26.2

28.3

31.7

38.7

45.8

50.5

55.1

36.6

41.2

46.6

52.1

59.9
68

75.1

82.1

55

63

74.4

86.4

99.9

104
109

81.5

92.8

103
130
141

153

108

121
132

144
154

177

171

194
205
205

215

66
74

97
120
150
180
190
190

94
110
140
180
170
170
170
170

160
170
220
250
290
310
310

270
320
340
420
420
440

320
370
430
480
530
580

350
430
480
510
610

30.2

33.6

43.9

54.3

66.9
81

84.5

86.8

42.9

49.9

64.9

79.9

77.9

75.2

75.1

75.1

72.5

79.2

97.8

113

130
141
141

122

146

157

191
190
201

147
170
194

217

239
262

160
195
219
230

277

100
120
140
170
190
210
220
230

160
190
220
260
260
260
280
280

260
290
340
390
440
440
470

460
480
530
630
650
670

540
610
660
740
790
840

700
830
880
960

1100

46.9

53.9

65.2

76.6

85.7

96.2
101
107

73.3

86.2
102
118
118

117

129
129

116
134
156
178
201
200

211

207
218
240
286
296
307

244
279
301
336
358
380

318

377

400
434
480

82
100
140
170
220
260
310
340

110
150
200
250
310
390
390
390

150
230
270
370
470
470
440

320
400
480
600
630
650

350
460
510
560
660
760

490
670
750
830
980

28

37.4

45.6

61.7

76.7

98.6

117

141

153

49

68.2

91.4
114
142
176
176
176

67.6
104

121

167

213
212

200

147
182

217
275

285
295

159
207
230

253

299
345

221

305
341
376
445

110
140
170
220
260
310
360
410
460

220
270
340
420
490
540
540
540

320
370
480
580
680
720
750

510
640
740
970
990

1000

560
720
820

920
1000
1200

810

960
1100
1200
1500

49.7

63.8
79

98.4

118
141
164
188

211

97.7

121

156
190
224
247
247
246

147
170

217

262
307
329
341

231

290
336
441
450
472

256

327

374
420
477
534

367
438
497
567
695

20

Bulletin 71.1:MR95

Table 17. Steam Capacities

(1)

for 1-1/2 through 2 in. / DN 40 through 50 Types MR95H and MR95HD Regulators with

Metal Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

5 to 80 /

0.34 to 5.5

60 to 120 /

4.1 to 8.3

100 to 140 /

6.9 to 9.7

120 to 150 /

8.3 to 10.3

1. Capacities are based in lbs/h / kg/h of saturated steam.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h

5 0.34

30 2.1

50 3.4

75 5.2

100 6.9

125 8.6

150 10.3

10
20
30
50

75

100
150
200
250
300

40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175
225

250
300

150

175

200

225

250
300

175

200

225

250
300

Inlet

0.69

10.3

13.8

17.2

20.7

10.3

13.8

17.2

20.7

10.3

13.8

17.2

20.7

10.3

12.1

15.5

17.2

20.7

1.4

2.1

3.4

5.2

6.9

2.8

3.4

5.2

6.9

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

8.6

10.3

12.1

13.8

15.5

17.2

20.7

12.1

13.8

15.5

17.2

20.7

1-1/2 / 40 2 / 50

Droop Droop

10% 20% 40% 10% 20% 40%

45

71

92
140
180
210
240
250
320
380

350
360
620
870
910
990

1200
1500

590
850

1200
1300
1400
1800
2200

1300
1600
1900
2500
2700
2900

1500
1700
1800
2200
2100
2100

1800
2100
2400
2800
3300
4200

1700
2100
2300
2400
2800

20.4

32.2

41.9

63.2

80.4

97.6
107

115

146

175

161
164
280
397
413
450
566
682

266
386

523

576
631
825
998

571

707
844

1110
1230
1340

674
750
827
980
957
932

818

935
1070
1270
1480
1910

778

936
1030

1110

1280

67

97
120
180
250
310
340
370
430
510

580
620
970

1300
1400
1500
1800
2000

1200
1500
1800
2000
2300
2600
2900

2100
2600
3100
4100
4200
4300

2700
2900
3100
3600
3700
4000

3100
3700
4300
4900
5300
6600

3100
3600
3900
4200
4800

30.6

44.3

55.8

82.9

112

140
154
167
194

233

265
283
440
595
648
684
799
915

551

668
822
932

1040

1180

1330

974
1190
1420
1870
1910
1970

1220
1310
1410
1610
1670
1800

1400
1680
1950
2210
2400
2980

1430
1620
1760
1890
2200

110
160
210
320
420
510
560
560
640
770

930
1000
1600
2200
2200
2300
2400
2600

2000
2300
2800
3100
3400
3700
4100

3000
3600
4200
5200
5600
6000

3600
4100
4800
5700
6100
6500

4200
4900
5700
6600
7000
8300

4900
5700
6200
6600
7900

50.9

74.3

97.6
144
192
234

253
252

291
349

424
462

735

987

1020
1030

1110
1190

887

1040
1290
1420
1530
1700
1870

1370
1640
1890
2370
2550
2740

1630
1880
2190
2570
2760
2950

1890
2210
2600
2980
3170
3750

2220
2610
2800
2990
3570

45

71

97
140
220
280
430
600
900

1200

450
580
840

1100
2500
3800
4300
4700

630

940
1500
3400
5200
6000
6900

1500
2400
3400
5300
7400
9100

1700
2700
3700
5700
6600
7900

1700
2000
2200
3600
4900
7500

1700
2100
2400
2700
3300

20.4

32.2

43.9

65.2
98

129
194

272

408
563

204
264
381

517

1120
1740
1950
2140

287
427

684
1530
2370
2750
3130

672
1110
1570
2390
3360
4140

776
1220
1670
2600
2990
3570

777

894
1010
1630
2210
3390

778

957
1090
1230
1480

63
100
140
210
310
410

1100
1800
2000
2200

810
980

1900
2800
3700
4700
4700
4700

1400
1900
3000
4800
6100
6500
6900

2800
3600
4400
6100
7800
9100

3100
4000
4900
6600
7400
9100

3400
4500
5300
6200
7000
9200

3400
4100
5300
6200
8400

28.6

46.3

63.8

96.7
141
185
505
816
912
990

366
445
859

1270
1690
2150
2140
2140

653
850

1340
2180
2760
2940
3130

1260
1650
2000
2780
3550
4130

1420
1820
2210
2990
3380
4150

1550
2020
2420
2810
3200
4180

1550
1880
2420
2810
3800

120
180
240
350
650

900
1500
2100
2200
2200

1300
1700
2500
3400
4000
4700
4700
4700

2000
2400
3300
4800
6400
6400
6900

3100
4000
4800
6400
7800
9000

3800
4700
5300
7000
7800
9100

4400
5300
6100
7000
7800
9400

4900
6000
6900
7700
9300

52.9

80.3
108
160
294
410
700
971
990
990

606
763

1150
1550
1820
2150
2140
2140

887

1100
1510
2170
2930
2930
3120

1430
1800
2190
2910
3530
4110

1730
2130
2390
3170
3550
4130

2020
2410
2800
3180
3550
4260

2220
2740
3120
3500
4230

21

Bulletin 71.1:MR95

Table 18. Steam Capacities

(1)

for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Type MR95HT Regulators with

Metal Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

80 to 300 /

5.5 to 20.7

1. Capacities are based in lbs/h / kg/h of saturated steam.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h

15 1.0

50 3.4

100 6.9

125 8.6

200 13.8

300 20.7

30
40
50

75

100
150
200
250
300
400
500
600

60

75

100
150
200
250
300
400
500
600

125

150

175

200
250
300
400
500
600

150

175

200

225

250
300
400
500
600

225

250
300
350
400
450
500
600

350
400
450
500
550
600

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

4.1

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

8.6

10.3

12.1

13.8

17.2

20.7

27.6

34.5

41.4

10.3

12.1

13.8

15.5

17.2

20.7

27.6

34.5

41.4

15.5

17.2

20.7

24.1

27.6

31.0

34.5

41.4

24.1

27.6

31.0

34.5

37.9

41.4

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

4.8

2.19

7.2

3.28

8.5

3.85

9.9

4.49

27

12.1

60

27.5

48

5

5.2

5.4

5.8

8.6

12
12
12
15

18

21

21
22

24
26
30

33
37

40
40
42

49

51
53
57

61
66

72
72
75

34
36
38
41
43
47

51

58
63

56
63

72
77

78
83
87
94

98
110
110
120
130
130

2.28

2.37

2.44

2.65

3.93

5.31

5.42

5.52

6.8

8.29

9.67

9.77

10.1

10.8

11.7

13.8

14.9

17

18.1

18.1

19.1

22.1

23

23.9
26

27.8

29.8

32.9

32.9
34

15.5

16.5

17.5

18.5

19.5

21.4

23.4

26.6

28.7

25.6

28.7

32.9

34.8

35.6

37.6

39.6

42.5

44.4

48.5

51.4

54.4

57.4

60.4

7.8

8.3

9.3

11

14
18
19

21
22
23

26

36
38
38
42
49

51

54
56
58
58

75

79
83
88
92

96
100
100
110

56

58

62

64

69

75

82

91
100

97
100
110
120
130
130
140
140

160
170
180
190
200
210

3.57

3.75

4.25

4.78

6.48

8.18

8.82

9.56

10.1

10.6

11.7

16.6

17.5

17.3

19.2

22.3

23.4

24.4

25.5

26.6

26.6

34.1
36

37.9

39.8

41.6

43.6

45.7

46.7

47.8

25.3

26.2

28.3

29.2

31.2

34.2

37.2

41.4

45.7

44.2

46.1

51.2

55.1
58

59.9

61.8

65.9

74.9

78.8

82.7

86.6

90.5

94.5

15

19
28
28
42
56
56
56
63
65
68

73

78

84
100
120
130
140
160
170
170

160
170
190
200
230
260
280
280
280

110
120
140
140
150
170
210
230
260

200
220
270
290
330
360
360
400

340
410
430
480
500
550

6.64

8.76

12.8

12.8

19.1

25.5

25.5

25.5

28.7

29.7

30.8

33.3

35.3

38.2

46.2

54.4

60.6

65.9

74.4

76.5

78.6

73.1

79.2

85.3

91.3
106
118
128

127
127

49.9

56.2

62.5

65.5

69.6

76.6

95.2
106

117

89

99.7

121
131
152

162
162
182

155

188
198
219
229
250

19
26
38
44
61

77
77
77

84
96

110

120
130
140
160
180
190
210
220
220
220

240
260
290
310
350
380
420
400
400

180
200
220
230
240
280
330
370
400

340
360
410
480
520
540
570
630

580
680
720
770
810
860

8.58

11.9

17.1

20.2

27.6

35.1

35.1

35.1

38.2

43.6

48.9

56.4

58.2

61.9

70.7

79.8

87.2

95.6

98.8
101
102

110
120

131

141
161

171

191
181
181

83.9

92.2
100
106
108
129
149
170
181

155

165
186

217

238
248

257

288

265
308
328
348
369
389

36
41
54
66
70

77

86

98
100
110
110

160
170
180
190
220
230
260
220
230
260

290
320
360
380
450
500
380
420
440

230
270
290
310
340
360
400
450
470

390
440
510
580
650
640
670
690

610
630
750
840
960

1100

16.4

18.5

24.7

29.9

31.9

35.1

39.3

44.6

46.8

48.9

52.1

72.3

75.1

79.8

88.5

98.6
107

117

98.8
106

117

133

143
164

175

206
226

171

192
202

107

121
132

142

153

163
183
203

213

178
200

231

263
294
293
303

312

278
287
341
384
437
479

70
76

90
100
110
120
130
140
140
150
160

240
240
260
280
330
350
370
330
350
370

460
510
550
600
640
690
590
630
650

390
410
460
480
530
590
640
680
700

660
730
870

1000
1100
1100
1100
1100

970
990

1200
1300
1500
1700

31.6

34.7

40.8

45.9
50

53.1

57.4

61.6

64.8
68

71.2

111

110
120
129
150
160
170
149
159
170

210
230

251
272

291

311

267
287
298

177

187
208
218
239
270
289
309
319

299

331

395
458

521

508
496
483

443
451
526
600
674
759

53
57

69
78

98
120
130
140
160
170
180

150
160
190
240
310
350
400
440
490
540

320
390
460
500
600
690
780
840
910

240
270
310
340
360
430
520
610
700

440
490
560
650
740
810
880

1000

780
900

1000
1100
1300
1400

22

24

26.1

31.2

35.2

44.7

55.2

58.4

62.7

71.2

76.5

81.8

66.7
74

86.4

108
139
160
181
202

223

244

144
176
208
229

271
312
353

383
415

108

121

143

153

164
195
236
278
320

200

222
253

296
338
369
400
473

356
409
462

515

579
632

87
94

98
110
130
160
190
210
230
260
280
300

270
290
310
400
470
540
580
680
720
770

530
630
740
860
950

1100
1200
1300
1300

410
460
510
550
600
690
850
960

1100

760
830
960

1100
1300
1400
1400
1600

1400
1600
1800
1900
2100
2300

39.5

42.5

44.4

51.5

58.7

73.3

87.1

96.7
106

117

128
138

122
132

142
183
214
245
266
308
329

351

243
285
338
391
432
483
534

575

606

188
209
230

251
272
313

386
437
489

344

375

438

512
575

616
657
740

620

715

800
884
968

1040

22

Bulletin 71.1:MR95

Table 19. Steam Capacities

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

60 to 260 /

4.1 to 17.9

1. Capacities are based in lbs/h / kg/h of saturated steam.

- Denotes capacities limited by boost.

Differential

psig bar psig bar lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h lb/h kg/h

15 1.0

50 3.4

100 6.9

125 8.6

200 13.8

250 17.2

(1)

for 1-1/2 through 2 in. / DN 40 through 50 Type MR95HT Regulators with Metal Diaphragm

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Setting

Inlet

30
40
50

75

100
150

10.3

200

13.8
250 17.2 540 246 850 387 1300 598 1700 792
300 20.7 580 264 850 387 1400 615 1400 615
400 27.6 430 193 660 299 1400 615 1400 615 3200 1440 3200 1440
500 34.5 300 135 460 211 1400 615 1400 615 3200 1440 3200 1440
600 41.4 430 193 540 246 1400 615 1400 615 3200 1440 3200 1440

60

75

100
150
200

250 17.2 1600 747 2700 1240 3800 1720 3600 1640
300 20.7 1900 886 2900 1330 3800 1710 3600 1630
400 27.6 1800 812 2700 1230 3800 1710 3600 1620 7000 3170 7000 3170
500 34.5 1600 740 2600 1160 3800 1710 3600 1620 7000 3170 7000 3170
600 41.4 1000 475 2100 950 3800 1720 3600 1620 7000 3170 7000 3160

125

150
200
250
300
400
500
600

150

10.3

175

12.1
200

13.8

225

15.5
250

17.2
300

20.7
400

27.6
500

34.5
600

41.4

225

15.5
250

17.2
300

20.7
350

24.1
400

27.6
450

31.0
500

34.5
600

41.4

275

300
350
400
450
500
550
600

2.1

2.8

3.4

5.2

6.9

4.1

5.2

6.9

10.3

13.8

8.6

10.3

13.8

17.2

20.7

27.6

34.5

41.4

19.0

20.7

24.1

27.6

31.0

34.5

37.9

41.4

1-1/2 / 40 2 / 50

Droop Droop

10% 20% 40% 10% 20% 40%

160
200
240
330
430
470
500

450
570
760

1100

1300

1200
1500
2200
2300
2600
2700
2800
3200

940

1100
1200
1400
1500
1700
2100
2500
2900

1600
1800
2300
2600
2800
3100
3400
3900

2200
2600
3000
3400
3800
4400
4400
4400

73.4

1060

1170
1210
1260
1430

1120
1330

1050
1170
1290
1430
1550
1790

1170
1340
1540
1730
2000
1990
1980

91
109
150
196

212

229

204

257

346
486
607

536
698
981

426
497
568
620
690
795
967

724
831

984

240
300
370
510
630
780
890

850
1100
1400
2000
2600

2300
3000
4400
4400
4300
4700
4700
5100

1500
1800
2000
2200
2400
2700
3500
4300
4700

2800
3100
3800
4400
4800
5200
5500
6700

3800
4500
4800
5600
6400
6800
7100
7500

110
138
168

233

285

353

405

388

495

654

915

1180

1030
1370
1990

1980
1970
2130
2130
2300

682
806

930
1020
1090
1220
1590
1960
2130

1260
1400
1720
2000
2170
2340
2520
3040

1740
2030
2200
2550
2900
3070
3240
3420

440
520
590

820
1100
1200
1300

1500
1900
2500
3100
3800

3400
4000
5500
5900
6700
6600
7000
7000

2900
3300
3800
4000
4300
5100
5500
6200
7000

5200
5600
6800
7500
8300
9100
9800

11,000

6400
7600
8400
9500

10,000
11,000
12,000
13,000

200

235

270

375

479
547
598

696

873
1140
1430
1720

1570
1810
2520
2680
3030
3010
3180
3170

1300
1510
1720
1800
1980
2320
2490
2830
3180

2380
2550
3080
3420
3770
4110
4460
4980

2920
3460
3810
4330
4680
5200
5550
5890

160
230
290
430

590
1700
2800

530

770

1100
3100
5100

1600
2900
5400
7000
8400
9000
9000
8900

1100
1200
1400
1600
1900
2400
2900
3300
3600

1800
2000
2500
2900
3200
3500
3800
4300

2100
2600
3300
3700
4000
4800
4800
5200

73.4
104
134
197
267
760

1250

241
349

492
1400
2320

739
1320
2480
3170
3830
4100
4080
4070

481

552

641

747

872
1100
1310
1500
1650

798

905
1140
1310
1450
1590
1710
1970

947
1170
1490
1680
1820
2180
2170
2350

270
370

480
1000
1600
2300
3100
3100
3200

970
1600
2600
3900
5500
6200
7000

3000
3900
5600
7000
8500
9000
9000
8900

1900
2300
2700
3500
4400
5900
7100
8200
9400

3500
4000
6000
7200
8400
9100
9900

11,000

4500
5300
7200
8400
9200

10,000
11,000
11,000

123

169

217

465

729
1060
1410
1430
1440

443

715

1160
1790
2500
2840
3180

1380
1790
2530
3200
3850
4090
4070
4060

848
1040
1220
1580
1990
2700
3220
3730
4250

1570
1840
2740
3270
3800
4140
4490
5180

2030
2390
3290
3830
4170
4700
4870
5210

520
720

910
1500
2100
2600
3100
3100
3200

1800
2300
3000
4300
5800
6200
7000

3500
4200
5700
7100
8500
9300
9300
9300

3700
4400
5200
5900
6700
8300
9000

10,000
11,000

5800
6600
8200
9700

11,000
12,000
13,000
14,000

7000
7800
9200

10,000
11,000
12,000
13,000
14,000

237

326
414
678

940
1160
1410
1420
1440

803
1030
1370
1960
2650
2830
3180

1570
1930
2600
3250
3880
4250
4240
4230

1660
2000
2350
2700
3050
3750
4090
4600
4940

2650
3020
3720
4400
4840
5370
5710
6400

3190
3570
4170
4690
5220
5560
6080
6430

23

Bulletin 71.1:MR95

Table 20. Water Capacities

(1)(2)

in GPM / L/min for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95L and

MR95LD Regulators with Elastomer Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

2 to 6 /

0.14 to 0.41

5 to 15 /

0.34 to 1.0

13 to 30 /

0.90 to 2.1

1. To obtain capacities for regulators with metal diaphragms, multiply the table values by 0.8.

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Capacities not tested due to cavitation regime.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min

5 0.34

10 0.69

15 1.0

20 1.4

30 2.1

10
20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

20
30
50

75

100
150
200
250

30
40
50

75

100
150
200
250

40
50

75

100
150
200
250

Inlet

0.69

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

2.8

3.4

5.2

6.9

10.3

13.8

17.2

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

3.8

14.4

4.0

5.0

6.0

8.0

8.0

4.0

2.0

3.3

6.0

6.0

6.0

2.0

3.7

7.0

10.5

14.0

14.0

2.9

4.3

5.7

8.6

11.4

11.4

11.4

4.4

5.7

8.6

11.4

13.3

15.2

17.1

18.9

22.7

30.3

30.3

15.1

7.6

12.6

22.7

22.7

22.7

7.6

13.9

26.5

39.7

53.0

53.0

10.8

16.2

21.6

32.3

43.1

43.1

43.1

16.5

21.6

32.3

43.1

50.3

57.5

64.7

5.0

6.7

10.0

10.0

5.0

4.0

5.7

9.0

9.0

9.0

4.0

6.0

10.0

12.5

15.0

15.0

4.8

6.7

8.6

11.4

14.3

14.3

14.3

6.6

7.6

10.5

13.3

14.7

16.2

18.1

15.1

18.9

25.2

37.8

37.8

18.9

15.1

21.4

34.0

34.0

34.0

15.1

22.7

37.8

47.3

56.7

56.7

18.0

25.2

32.3

43.1

53.9

53.9

53.9

25.1

28.8

39.5

50.3

55.7

61.1

68.3

10.0

11.0

11.0

11.5

12.0

12.0

10.5

12.0

13.0

14.0

14.0

3.0

4.0

4.7

6.0

6.0

6.0

5.0

5.7

7.0

7.5

8.0

8.5

5.0

6.0

8.0

8.5

9.0

6.0

7.0

8.0

9.5

7.5

9.0

11.3

15.1

17.7

22.7

22.7

22.7

18.9

21.4

26.5

28.4

30.3

32.2

18.9

22.7

30.3

32.2

34.0

37.8

41.6

22.7

26.5

30.3

35.9

41.6

43.5

45.4

45.4

28.4

34.0

39.7

45.4

49.2

53.0

53.0

6.0

7.0

7.3

8.0

8.5

9.0

8.0

9.0

11.0

11.5

12.0

12.0

8.0

9.7

13.0

14.0

15.0

15.0

15.0

10.0

11.5

13.0

14.5

16.0

16.5

17.0

18.0

12.0

14.0

16.0

18.0

19.5

21.0

22.0

22.7

26.5

27.7

30.3

32.2

34.0

30.3

34.0

41.6

43.5

45.4

45.4

30.3

36.6

49.2

53.0

56.7

56.7

56.7

37.8

43.5

49.2

54.9

60.5

62.4

64.3

68.1

45.4

53.0

60.5

68.1

73.8

79.4

83.2

4.5

8.0

9.7

13.0

15.2

18.9

19.8

20.7

22.5

10.0

11.7

15.0

18.5

21.6

23.4

25.2

28.8

10.0

12.7

18.0

20.7

23.4

25.2

27.0

30.6

12.0

13.5

17.0

18.5

21.0

25.2

29.7

30.6

16.0

18.0

22.0

26.0

31.5

37.8

37.8

17.0

30.3

36.6

49.2

57.4

71.5

74.9

78.3

85.1

37.8

44.1

56.7

69.8

81.7

88.5

95.3
109

37.8

47.9

68.1

78.3

88.5

95.3

102

116

45.4

51.1

64.3

69.8

79.4

95.3

112

116

60.5

68.1

83.2

98.4
119

143
143

10.0

14.0

15.3

18.0

20.7

22.5

23.9

25.2

25.2

16.0

18.0

22.0

26.1

28.8

30.2

31.5

34.2

15.0

19.0

27.0

30.6

34.2

36.9

39.6

40.5

19.0

21.2

26.0

29.3

32.0

37.8

42.3

45.0

26.0

29.0

34.0

39.0

44.6

49.5

52.2

37.8

53.0

58.0

68.1

78.5

85.1

90.2

95.3

95.3

60.5

68.1

83.2

98.7
109
114
119
129

56.7

71.9
102
116
129
140
150

153

71.9

80.0

98.4

111

121

143
160
170

98.4
110
129
148
169
187
197

6.0

10.0

10.9

12.7

16.9

21.0

22.0

23.0

25.0

10.0

12.3

17.0

20.5

24.0

26.0

28.0

32.0

10.0

13.3

20.0

23.0

26.0

28.0

30.0

34.0

12.0

15.0

18.0

20.5

23.0

28.0

33.0

34.0

17.0

19.0

23.5

28.0

35.0

42.0

42.0

22.7

37.8

41.2

48.0

63.7

79.4

83.2

87.0

94.6

37.8

46.7

64.3

77.6

90.8

98.4
106

121

37.8

50.4

75.7

87.0

98.4
106

113

129

45.4

56.7

68.1

77.6

87.0
106

125

129

64.3

71.9

88.9
106

132

159
159

11.0

15.2

17.2

21.1

23.1

25.0

26.5

28.0

28.0

16.0

19.3

26.0

29.0

32.0

33.5

35.0

38.0

15.0

20.0

30.0

34.0

38.0

41.0

44.0

45.0

19.0

23.5

28.0

32.5

37.0

42.0

47.0

50.0

27.0

29.0

36.5

44.0

49.5

55.0

58.0

41.6

57.5

64.9

79.8

87.2

94.6
100
106
106

60.5

73.1

98.4
110

121
127
132

144

56.7

75.7

113

129
144

155

166
170

71.9

88.9
106

123

140
159
178
189

102
110
138
166
187
208
219

24

Bulletin 71.1:MR95

Table 21. Water Capacities

(1)(2)

in GPM / L/min for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Types MR95H and

MR95HD Regulators with Elastomer Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 30 /

1.0 to 2.1

25 to 75 /

1.7 to 5.2

70 to 150 /

4.8 to 10.3

1. To obtain capacities for regulators with metal diaphragms, multiply the table values by 0.6.

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Capacities not tested due to cavitation regime.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min

15 1.0

30 2.1

50 3.4

75 5.2

100 6.9

150 10.3

30
40
50

75

100
150
200
250
300

40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175

200
250
300

175

200

225

250
300

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

10.3

13.8

17.2

20.7

8.6

10.3

12.1

13.8

17.2

20.7

12.1

13.8

15.5

17.2

20.7

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

1.0

3.8

3.0

1.5

2.0

3.0

4.0

4.0

2.0

3.0

4.5

6.0

7.6

8.9

9.8

10.6

3.0

4.0

5.0

6.5

8.0

8.8

9.5

5.0

6.0

7.0

9.0

10.1

11.2

4.0

5.0

6.0

7.0

8.3

9.5

5.0

7.0

8.0

9.0

11.0

5.7

7.6

11.3

15.1

15.1

7.5

11.3

17.0

22.7

28.9

33.6

37.2

40.1

11.4

15.1

18.9

24.6

30.3

33.1

35.9

18.9

22.7

26.5

34.0

38.4

42.4

15.1

18.9

22.7

26.5

31.5

35.9

18.9

26.5

30.3

34.0

41.6

3.5

4.0

6.0

8.0

8.0

4.3

6.0

8.5

11.0

13.7

15.8

17.4

18.7

4.5

6.0

9.0

11.5

14.0

15.7

17.2

8.0

9.5

11.0

14.0

15.7

17.3

7.0

9.0

11.0

13.0

15.7

18.0

9.0

12.0

13.5

15.0

18.0

11.3

13.2

15.1

22.7

30.3

30.3

16.2

22.7

32.2

41.6

51.9

59.7

65.8

70.7

17.1

22.7

34.0

43.5

53.0

59.5

65.0

30.3

35.9

41.6

53.0

59.4

65.4

26.5

34.0

41.6

49.2

59.3

68.1

34.0

45.4

51.1

56.7

68.1

11.0

12.0

13.0

10.0

11.0

12.0

13.5

15.0

10.0

11.0

12.5

14.0

10.0

11.3

12.5

15.0

15.5

16.0

10.5

11.6

12.8

13.5

14.3

12.8

13.9

15.0

17.3

4.0

4.5

5.0

6.0

7.0

9.0

6.0

7.0

8.5

6.8

8.0

9.0

8.3

9.0

15.1

17.0

18.9

22.7

26.5

34.0

41.6

45.4

49.2

22.7

26.5

32.2

37.8

41.6

45.4

51.1

56.7

25.7

30.3

34.0

37.8

41.6

47.3

53.0

37.8

42.6

47.3

56.7

58.6

60.5

31.2

39.7

44.0

48.2

51.1

53.9

34.0

48.2

52.5

56.7

65.3

7.0

8.0

9.0

10.0

11.0

13.0

15.0

16.0

17.0

10.0

12.0

14.5

17.0

18.0

19.0

19.5

20.0

13.1

14.0

17.0

18.0

19.0

21.0

23.0

18.0

19.5

21.0

24.0

25.0

26.0

14.3

18.0

20.3

22.5

22.5

22.5

16.5

20.3

22.1

24.0

27.8

26.5

30.3

34.0

37.8

41.6

49.2

56.7

60.5

64.3

37.8

45.4

54.9

64.3

68.1

71.9

73.8

75.7

49.5

53.0

64.3

68.1

71.9

79.4

87.0

68.1

73.8

79.4

90.8

94.6

98.4

53.9

68.1

76.6

85.1

85.1

85.1

62.4

76.6

83.7

90.8
105

7.0

8.5

10.0

11.5

13.0

14.5

16.0

17.0

10.0

12.0

14.5

17.0

18.5

20.0

20.5

21.0

13.3

14.0

18.0

21.0

24.0

24.5

25.0

18.0

20.5

23.0

28.0

30.0

32.0

19.0

23.0

26.0

29.0

31.0

33.0

23.0

28.0

30.5

33.0

38.0

26.5

32.2

37.8

43.5

49.2

54.9

60.5

64.3

37.8

45.4

54.9

64.3

70.0

75.7

77.6

79.4

50.3

53.0

68.1

79.4

90.8

92.7

94.6

68.1

77.6

87.0
106

113

121

71.9

87.0

98.4
110

117

125

87.0
106

115
125

144

12.0

13.5

15.0

17.0

19.0

20.0

21.0

22.0

18.0

20.0

23.5

27.0

29.0

31.0

32.0

33.0

22.8

24.0

29.0

34.0

39.0

39.0

39.0

30.0

33.3

36.5

43.0

46.5

50.0

31.0

37.0

40.5

44.0

47.5

51.0

39.0

45.0

48.3

51.5

58.0

45.4

51.1

56.7

64.3

71.9

75.7

79.4

83.2

68.1

75.7

88.9
102
110

117
121
125

86.4

90.8
110
129
148
148
148

113

126
138
163
176
189

117

140

153

166
180
193

148
170
183
195
219

8.0

10.0

12.0

12.0

12.0

17.0

22.0

23.0

12.0

15.0

21.0

27.0

29.0

31.0

38.0

45.0

17.0

18.0

25.0

27.0

29.0

36.0

43.0

22.0

27.5

33.0

44.0

46.5

49.0

22.0

28.0

33.0

38.0

43.0

48.0

30.0

36.0

41.3

46.5

57.0

30.3

37.8

45.4

45.4

45.4

64.3

83.2

87.0

45.4

56.7

79.4
102
110

117

144
170

64.3

68.1

94.6
102
110
136
163

83.2
104

125

166
176
185

83.2
106

125

144
163
182

113

136
156
176
216

15.0

19.0

23.0

24.0

25.0

30.5

36.0

37.0

23.0

26.0

36.0

46.0

48.0

50.0

57.5

65.0

30.0

31.0

41.0

48.0

55.0

61.0

67.0

38.0

46.3

54.5

71.0

74.0

77.0

37.0

46.0

54.0

62.0

73.0

84.0

44.0

52.0

59.5

67.0

82.0

56.7

71.9

87.0

90.8

94.6

115

136
140

87.0

98.4
136
174
182
189
218
246

113
117
155

182
208

231
253

144

175

206
269
280
291

140
174
204

235

276
318

166
197

225
253

310

25

Bulletin 71.1:MR95

Table 22. Water Capacities

(1)

in GPM / L/min for 1-1/2 through 2 in. / DN 40 through 50 Types MR95H and MR95HD Regulators with

Elastomer Diaphragm

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

5 to 80 /

0.34 to 5.5

60 to 120 /

4.1 to 8.3

100 to 140 /

6.9 to 9.7

120 to 150 /

8.3 to 10.3

1. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Denotes capacities limited by boost.

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min

5 0.34

15 1.0

50 3.4

75 5.2

100 6.9

125 8.6

150 10.3

10
20
30
50

75

100
150
200
250
300

30
40
50

75

100
150
200
250
300

60

75

100
150
200
250
300

100

125

150
200
250
300

125

150

175
225

250
300

150

175

200

225

250
300

175

200

225

250
300

Inlet

0.69

1.4

2.1

3.4

5.2

6.9

10.3

13.8

17.2

20.7

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

4.1

5.2

6.9

10.3

13.8

17.2

20.7

6.9

8.6

10.3

13.8

17.2

20.7

8.6

10.3

12.1

15.5

17.2

20.7

10.3

12.1

13.8

15.5

17.2

20.7

12.1

13.8

15.5

17.2

20.7

10% 20% 40% 10% 20% 40%

6.0

22.7

8.5

32.2

11.0

41.6

16.0

60.5

27.5

104

39.0

148

47.0

178

55.0

208

72.5

274

90.0

340

14.0

53.0

19.5

73.8

25.0

94.6

31.5

119

38.0

144

67.5

255

97.0

367

115

433

132

499

27.9

106

34.0

129

51.0

193

62.0

235

73.0

276

99.5

376

126

477

47.0

178

55.3

209

63.5

240

80.0

303

87.0

329

94.0

356

47.0

178

55.8

211

64.5

244

82.0

310

88.3

334

101

382

43.7

165

55.4

209

67.0

253

74.5

282

82.0

310

97.0

367

40.0

151

52.0

197

59.5

225

67.0

253

82.0

310

1-1/2 / 40 2 / 50

Droop Droop

8.0

11.3

14.5

21.0

38.0

55.0

98.5
142
159

175

27.0

33.0

39.0

49.5

60.0

84.5
109
184
258

63.7

66.0

95.0
103

111

179
247

84.0

94.8
106

127

189
250

92.0
107

122
151

154
159

86.4
105
124
139
154
184

79.0

98.0
108
118
138

30.3

42.6

54.9

79.4
144
208

373
537

600
662

102

125

148
187

227

320
412
694
976

241
250
359
390
420
677
934

318
358
399
480

713

946

348
404
460

571

581
601

327

398
469
526
583
696

299

371

409
446

522

14.0

19.8

25.5

37.0

52.5

68.0
119
169
174
179

47.0

53.5

60.0

74.0

88.0
148
208

235

262

95.0

111

138
169
200
236

271

129
150

171
213

241
269

135
155

176
216
229
256

148
168
188
204

221
253

145
169
188
206
243

53.0

74.7

96.5
140
199

257

448
639
658
677

178
202

227

280

333

560
787
889
991

359
420

522

639

757

891

1030

488
567
647
806
912

1020

511

587
664
817
868
968

560
636

711
773

834
957

549
639
709
779
919

6.0

8.3

10.5

15.0

19.0

23.0

40.5

58.0

52.5

47.0

14.0

18.0

22.0

25.0

75.0

77.0

91.0

82.0

73.0

25.5

37.0

47.0

64.0

81.0

85.0
154

45.0

54.3

63.5

82.0

85.0
191

46.0

54.8

63.5

81.0

85.3

94.0

47.0

58.5

70.0

78.3

86.5
103

42.0

56.0

63.8

71.5

87.0

22.7

31.2

39.7

56.7

71.9

87.0

153

219
199
178

53.0

68.1

83.2

94.6
284
291
344
310
276

96.7
140
178
242
306

322

583

170
205
240
310

322
723

174
207
240
306

323

356

178

221

265
296

327

390

159

212

241
270
329

8.0

10.5

13.0

18.0

25.0

92.0

79.0

66.0

59.5

53.0

22.0

28.5

35.0

40.0

132

124
116
107

97.0

50.7

68.0

82.0
108

133

140
178

82.0

97.8
114
145
150
276

90.0
106

122

154
163
181

91.0
110
128
142

155

182

90.0
108

121
135

161

30.3

39.7

49.2

68.1

94.6
348
299
250

225

200

83.2
108

132
151

499
469
439
403
367

192

257

310
407
503
530
673

310
370
429
549
567

1040

340
401
462
583
617
685

344
414
484

535

586
689

340
409
459
509
609

14.0

17.5

21.0

28.0

37.0
114

99.5

85.0

75.0

65.0

42.0

52.0

62.0
118

173
153
133
132

130

100

127
157

198
238
267
295

138
161
184
229
260
290

147
170
193
239

255

287

158
183
207
224
241

275

169
198

215
232

265

53.0

66.2

79.4
106
140
431
376

322

284
246

159
197

235

445
654
579
503
497
492

378
480
594
747
900

1010
1120

522

608
694
866
982

1100

556
643
730
904
965

1090

598
690
783
847
912

1040

639
749
812
876

1000

26

Bulletin 71.1:MR95

Table 23. Water Capacities

(1)(2)

in GPM / L/min for 1/4 NPT and 1/2 through 1 in. / DN 15 through 25 Type MR95HP

(Elastomer Diaphragm) Regulator

PRESSURE REGULATOR BODY SIZE, IN. / DN

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

80 to 300 /

5.5 to 20.7

80 to 400 /

5.5 to 27.6

Type MR95HP Only

1. To obtain capacities for regulators with metal diaphragms or for Type MR95HT, multiply the table values by 0.6. Capacity data for 1000 psig / 69.0 bar inlet is not applicable for
Type MR95HT (Type MR95HT max. inlet = 600 psig / 41.4 bar).

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Capacities not tested due to cavitation regime.

Outlet/

Differential

Setting

psig bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min

15 1.0

75 5.2

100 6.9

125 8.6

200 13.8

300 20.7

400 27.6

30
40
50

75

100
150
200
250
300
400
500
600

1000

100

125

150
200
250
300
400
500
600

1000

125

150

175

200
250
300
400
500
600

1000

150

175

200

225

250
300
400
500
600

1000

225

250
300
400
500
600

1000

350
400
500
600

1000

500
600

1000

Inlet

2.1

2.8

3.4

5.2

6.9

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

6.9

8.6

10.3

13.8

17.2

20.7

27.6

34.5

41.4

69.0

8.6

10.3

12.1

13.8

17.2

20.7

27.6

34.5

41.4

69.0

10.3

12.1

13.8

15.5

17.2

20.7

27.6

34.5

41.4

69.0

15.5

17.2

20.7

27.6

34.5

41.4

69.0

24.1

27.6

34.5

41.4

69.0

34.5

41.4

69.0

1/4 NPT 1/2 / 15 3/4 / 20 1 / 25

Droop Droop Droop Droop

10% 20% 10% 20% 10% 20% 10% 20%

0.8

3.0

1.3

4.9

2.4

9.1

3.7

14.0

6.0

22.7

8.0

30.3

6.0

1.3

1.8

2.2

2.5

2.9

3.3

3.6

3.9

4.2

5.5

6.7

9.2

10.2

11.1

12.5

13.0

14.0

4.9

6.17

7.43

8.7

10.3

11.9

14.2
16

17.4

1.9

2.4

2.9

3.2

3.5

4.1

5.0

5.7

6.3

2.6

3.1

4.0

5.4

6.5

7.4

9.9

4.6

5.3

6.7

7.4

9.1

6.7

7.7

10.6

4.9

6.8

8.1

9.5

11.0

12.5

13.6

14.8

15.9

20.6

25.3

34.8

38.4

42.0

47.3

49.2

53.0

18.5

23.3

28.1

32.9

39.0

45.0

53.6

60.4

65.9

7.2

9.1

11.0

12.1

13.2

15.5

18.9

21.6

23.8

9.8

11.6

15.1

20.4

24.6

27.9

37.4

17.2

19.9

25.2

27.8

34.4

25.2

29.1

40.3

1.9

2.5

3.3

4.1

4.6

5.0

5.3

5.6

7.0

8.5

10.0

12.9

14.7

16.4

17.0

18.0

18.0

7.0

8.9

10.9

12.8

14.9

17.0

20.4

23.0

25.1

3.5

4.1

4.7

5.2

5.6

6.5

7.7

8.6

9.4

5.0

5.7

7.0

9.0

10.6

11.8

15.4

8.1

9.1

11.2

12.3

15.8

11.2

13.0

17.9

7.2

9.5

12.5

15.5

17.2

18.9

20.0

21.2

26.5

32.1

37.6

48.8

55.4

62.0

64.3

68.1

68.1

26.5

33.8

41.1

48.4

56.4

64.3

77.2

86.9

94.9

13.2

15.5

17.8

19.5

21.2

24.6

29.0

32.6

35.6

18.9

21.4

26.5

34.0

39.9

44.8

58.3

30.5

34.4

42.4

46.3

59.6

42.4

49.0

67.5

2.9

3.4

4.3

5.1

5.8

6.5

7.6

8.7

8.0

9.0

10.0

12.0

13.0

14.0

14.5

15.0

15.0

9.0

10.7

12.3

14.0

15.0

16.0

16.0

16.0

18.0

18.0

6.0

7.0

8.0

8.8

9.5

11.0

11.5

12.0

14.0

14.0

8.0

9.3

12.0

15.0

18.0

19.0

20.0

13.0

15.0

19.0

21.0

26.0

19.0

22.0

30.4

11.0

12.9

16.1

19.3

21.9

24.6

28.8

32.9

30.3

34.0

37.8

45.4

49.2

53.0

54.9

56.7

56.7

34.0

40.4

46.7

53.0

56.7

60.5

60.5

60.5

68.1

68.1

22.7

26.5

30.3

33.1

35.9

41.6

43.5

45.4

53.0

53.0

30.3

35.3

45.4

56.7

68.1

71.9

75.7

49.2

56.7

71.9

79.4

98.4

71.9

83.2

115

4.3

4.9

6.1

7.2

8.1

9.0

10.2

11.3

14.0

15.5

17.0

20.0

21.5

23.0

23.0

23.0

23.0

16.0

18.0

20.0

22.0

23.5

25.0

26.0

27.0

28.0

28.0

10.0

12.0

14.0

15.0

16.0

18.0

19.0

20.0

22.0

22.0

15.0

17.0

21.0

25.0

29.0

31.0

32.0

23.0

26.0

32.0

35.0

45.0

32.0

37.0

51.0

16.3

18.5

22.9

27.2

30.6

34.0

38.4

42.7

53.0

58.6

64.3

75.7

81.3

87.0

87.0

87.0

87.0

60.5

68.1

75.7

83.2

88.9

94.6

98.4
102
106
106

37.8

45.4

53.0

56.7

60.5

68.1

71.9

75.7

83.2

83.2

56.7

64.3

79.4

94.6
110

117
121

87.0

98.4

121
132

170

121

140
193

6.5

7.0

8.5

10.0

11.5

13.0

14.0

15.0

16.8

16.0

18.0

20.0

24.0

26.5

29.0

30.3

30.3

30.3

19.0

22.7

26.3

30.0

31.0

32.0

33.5

37.1

37.1

37.1

10.0

13.5

17.0

18.5

20.0

23.0

26.0

29.0

29.3

32.5

16.0

19.0

25.0

29.5

34.0

37.0

40.0

24.0

28.0

36.0

42.0

50.0

32.0

40.0

53.0

24.6

26.5

32.2

37.8

43.5

49.2

53.0

56.7

63.6

60.5

68.1

75.7

90.8
100

110

115
115
115

71.9

85.7

99.6

113
117
121
127

140
140
140

37.8

51.1

64.3

70.0

75.7

87.0

98.4
110

111

123

60.5

71.9

94.6

112

129
140

151

90.8
106
136
159
189

121
151

200

8.5

9.0

11.5

14.0

15.5

17.0

18.0

19.0

19.0

25.0

28.8

32.5

40.0

43.0

46.0

53.0

53.0

53.0

32.0

36.7

41.3

46.0

50.0

54.0

56.7

59.5

59.5

59.5

19.0

24.0

29.0

31.0

33.0

37.0

39.5

42.0

43.2

51.0

30.0

34.7

44.0

49.0

54.0

57.0

60.0

44.0

49.0

59.0

65.0

77.0

55.0

65.0

84.0

32.2

34.0

43.5

53.0

58.6

64.3

68.1

71.9

71.9

94.6
109

123
151

163
174
200
200
200

121

139
156
174
189
204
214

225
225
225

71.9

90.8
110

117
125

140
149
159
163
193

113
131

166
185
204
216

227

166
185

223

246
291

208
246
318

7.0

8.0

9.5

11.0

13.5

16.0

18.5

21.0

24.0

18.0

21.5

25.0

32.0

35.5

39.0

41.0

41.0

41.0

21.0

26.7

32.3

38.0

42.0

46.0

51.5

57.0

57.0

57.0

12.0

16.0

20.0

22.0

24.0

28.0

36.0

44.0

45.0

50.0

19.0

23.0

31.0

37.5

44.0

45.0

75.0

27.0

33.0

45.0

59.0

70.0

43.0

52.0

84.0

22.7

26.5

30.3

35.9

41.6

51.1

60.5

70.0

79.4

90.8

68.1

81.3

94.6

121

134
148

155
155
155

79.4
101

122

144
159
174
195
216
216
216

45.4

60.5

75.7

83.2

90.8
106
136
166
170
189

71.9

87.0

117

142
166
170
284

102

125

170

223

265

163
197
318

10.0

11.0

12.0

13.5

15.0

20.0

25.0

30.7

36.4

37.0

31.0

37.3

43.5

56.0

62.5

69.0

80.0

80.0

80.0

36.0

44.0

52.0

60.0

68.5

77.0

81.0

85.0

85.0

85.0

25.0

30.0

35.0

38.0

41.0

47.0

57.5

68.0

72.0

85.0

37.0

42.3

53.0

65.0

77.0

82.0

125

53.0

63.3

84.0

98.0

127

73.0

92.0

135

37.8

41.6

45.4

51.1

56.7

75.7

94.6
116
138
140

117

141
165

212

236
261
303
303
303

136
166
197

227

259
291
306

322
322
322

94.6

113
132

144

155

178
218

257
272
322

140
160
200
246
291
310
473

200
240
318

371

480

276
348

511

27

Bulletin 71.1:MR95

Table 24. Water Capacities

RECOMMENDED

OUTLET/

DIFFERENTIAL

PRESSURE

RANGE,

psig/psi / bar

15 to 100 /

1.0 to 6.9

60 to 260 /

4.1 to 17.9

60 to 300 /

4.1 to 20.7

Type MR95HP Only

1. To obtain capacities for Type MR95HT (metal diaphragm), multiply the table values by 0.6. Capacity data for 1000 psig / 69.0 bar inlet is not applicable for Type MR95HT (Type MR95HT
max. inlet = 600 psig / 41.4 bar).

2. To obtain capacities for regulators with reduced ow orices, multiply the table values by 0.7.

- Denotes capacities limited by boost.

- Capacities not tested due to cavitation regime.

(1)(2)

in GPM / L/min for 1-1/2 through 2 in. / DN 40 through 50 Type MR95HP (Elastomer Diaphragm) Regulator

PRESSURE REGULATOR BODY SIZE, IN. / DN

Outlet/

Differential

Setting

psig bar psig bar GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min GPM l/min

15 1.0

50 3.4

100 6.9

125 8.6

200 13.8

250 17.2

300 20.7

Inlet

30

2.1

40

2.8

50

3.4

75

5.2

100

6.9

150

10.3

200

13.8

250

17.2

300

20.7

400

27.6

500

34.5

600

41.4

1000

69.0

60

4.1

75

5.2

100

6.9

150

10.3

200

13.8

250

17.2
300 20.7
400

27.6
500

34.5
600

41.4

1000 69.0

125

8.6

150

10.3

175

12.1
200

13.8
250

17.2
300

20.7
400

27.6
500

34.5
600

41.4

1000

69.0
150

10.3

175

12.1
200

13.8

225

15.5
250

17.2
300

20.7
400

27.6
500

34.5
600

41.4

1000

69.0

225

15.5
250

17.2
300

20.7
350

24.1
400

27.6
450

31.0
500

34.5
600

41.4

1000

69.0

275

19.0
300

20.7
350

24.1
400

27.6
450

31.0
500

34.5
550

37.9
600

41.4

1000

69.0
350

24.1
400

27.6
450

31.0
500

34.5
550

37.9
600

41.4

1000

69.0

10% 20% 40% 10% 20% 40%

12.0

45.4

15.5

58.6

19.0

71.9

23.0

87.0

27.0

102

41.0

155

55.0

208

76.5

289

98.0

371

19.0

71.9

26.9

102

40.0

151

53.0

200

66.0

250

86.5

41.0

52.3

63.7

75.0

83.5

92.0

111
125
135

166

28.0

36.5

45.0

51.0

57.0

69.0

75.0

90.0
100
105

38.0

47.7

67.0

70.3

73.5

76.8

80.0

85.0
105

43.0

50.0

55.8

61.7

67.5

73.3

79.2

85.0

95.0

55.0

68.0

79.0

90.0

92.5

95.0

125

327

405
405
405
405

155

198
241
284
316
348
422
471

512

626
106

138
170
193
216
261
284
340
378
397

144
180

253

266
278
290
303

322

397
163

189

211
233
255
277

299

322

359
208

257

299
340
350
359
473

107.0

107.0

107.0

107.0

1-1/2 / 40 2 / 50

Droop Droop

11.0

41.6

20.0

25.0

30.0

36.5

43.0

62.0

81.0
148

215

39.0

49.9

68.0

85.5
103
147

190
190
190
190

78.0

95.7

113
131

145
158
180
200
200
200

55.0

66.5

78.0

85.5

93.0
108

125

140
145
150

76.0

90.0
118

121

124

127

130

135

150

91.0
101
108
114

121
127

134
140

155

110

125
135

145
148
150
190

75.7

94.6

113

138
163

235

306
560
813

148
189

257
323

390
554

719
719
719
719

295
362
429
496
547
598
681

757
757
757

208

252

295

323
352

409
473
530
549
567

288
340
446
458
469
480
492

511

567
344

382
407
431
456
480
505
530
586

416
473

511

549
558
567
719

36.0

41.5

47.0

59.5

72.0
134
195

217

238

81.0
101
134

172

210
240
270

270
270
270

138
159
181
202
234
265
265
265
265
265

111
131
151

168
186
220
250
266
276
285

160
179

217

220
226

231
237

246

273

185
203
204

217

229
241
254
266
295

209
238

257

276
280
285
361

136

157

178

225
272

505
738
819
900

306
382
507
651
794
908

1020

1020
1020
1020

522

603
683
764

883
1000
1000
1000
1000
1000

420

496

571

636

702

832

946
1010
1040
1080

605

677

821

833

854

874

895

929
1030

700

768

773

819

866

913

960
1010
1110

791

898

970
1040
1060
1080
1370

15.5

20.0

22.5

25.0

35.0

45.0

98.0

98.0

20.0

27.1

39.0

56.0

73.0

137

200
200
200
200

42.0

57.3

72.7

88.0
136
183
183
183
183
183

31.0

38.0

45.0

50.8

56.5

68.0

78.8

94.5
105
110

31.0

42.0

64.0

73.8

77.2

80.6

84.0

89.3
110

45.0

56.0

58.6

64.8

70.9

77.0

83.1

89.3

99.8

57.8

71.4

83.0

94.5

97.1

99.8

131

58.6

75.7

85.1

94.6

132

170

371
371

75.7
103
148

212

276
516

757
757
757
757

159

217
275
333
513

692
692
692
692
692

117

144
170
192
214

257

298

357

397
417

117

159
242
279
292
305
318
338
417

170

212
222

245
268
291
314
338

377

218
270
314

357

367

377

497

18.0

23.0

28.0

32.0

36.0
139
242

115
115

41.0

54.5

77.0
144

211

231

250
250
250
250

91.0

117

144
170
219
267
267
267
267
267

56.0

70.0

84.0

93.3
103

121

138
154
160
165

69.0

86.0
120

133

136
140
143
149
165

95.0
110
118

125
133

140
147
154

171
121

138
149
160
162
165
209

68.1

87.0
106

121

136
526
915

435
435

155

206
291
545
798
872

946
946
946
946

344
444
543
643
827

1010
1010
1010
1010
1010

212

265
318

353

388
458
520
583
603
624

261

325

454
504
516
528
541
562
624

359
416
447
474
501
528
556
583
645

458
520
562
603
614
624
791

33.0

40.5

48.0

59.0

70.0
158
245

132
132

91.0

112

147
192
236
265
294

294
294
294

146
169
192

215

247
279
279
279
279
279

119
144
169
188
207
245

275

293
303
314

154
178
226
242
248
254
260
270
300

194
219

225

238

252

265
279
293
324

230
261
282
303
308
314
397

1000

1110

1110
1110
1110

1060
1060
1060
1060
1060

1040

1110
1150
1190

1020

1140

1000
1060

1110

1230

1070

1150
1170
1190

1500

125
153

182

223

265
596
927

499
499

344
424
556
724
893

552

639
726
813
934

450
545
639

711

783
927

583
673
855
916
939
962
985

734
828
850
901
953

870
988

28

Bulletin 71.1:MR95

ØC

1/4

D

(MAX)

B

NPT*

NPT

OR SWE

A

TYPE MR95H (DIMENSION ALSO APPLY)

TO TYPES MR95L, MR95HT AND MR95HP

Ø3.50 /

88.9

ERAA03812 ERAA03808 ERAA03810

HANDLE DETAIL FOR SIZE

1/2 IN. / DN 15 ONLY

*Only when specied

Figure 3. Dimensions Drawing

ØC

1/4

D

(MAX)

FLANGE

B

ERAA03811ERAA03807 ERAA03809

14.00 / 355.6

TYPE MR95H FLANGED BODIES AVAILABLE IN 1/2 TO 2 IN. /

NPT*

TYPE MR95HD (DIMENSIONS ALSO

DN 15 TO 50 BODY SIZES (DIMENSIONS ALSO APPLY

TO TYPES MR95L, MR95HT AND MR95HP)

G

TEE HANDLE DETAIL FOR ALL SIZES

SWE DETAIL

EXCEPT 1/2 IN. / DN 15

ØC

ØJ

D

(MAX)

B

1/4

NPT

A

APPLY TO TYPE MR95LD)

ØE

F

NPT

OR SWE

IN. /
mm

Table 25. Dimensions

TYPE MR95L

BODY SIZE,

IN. / DN

1/4 NPT 2.75 69.9 2.75 69.9 2.04 51.9 5.06 128.5 6.17 156.7 - - - - - - - - - - - - - - - - 3.00 76.2

1/2 / 15 3.88 98.6 4.00 101.6 1.85 47.1 7.00 177.8 7.84 199.2 0.86 21.8 0.38 9.7 - - - - - - - -

3/4 / 20 4.88 124.0 5.00 127.0 2.27 57.6 10.19 258.8 9.86 250.4 1.07 27.2 0.50 12.7 5.00 127.0

1 / 25 4.88 124.0 5.00 127.0 2.27 57.6 10.19 258.8 9.86 250.4 1.34 34.0 0.50 12.7 5.00 127.0

1/4 NPT 2.75 69.9 2.75 69.9 2.04 51.9 3.19 81.0 6.36 161.5 - - - - - - - - - - - - - - - - 3.00 76.2

1/2 / 15 3.88 98.6 4.00 101.6 1.85 47.1 4.25 108.0 8.29 210.6 0.86 21.8 0.38 9.7 - - - - - - - -

3/4 / 20 4.88 124.0 5.00 127 2.27 57.6 6.06 154.0 10.21 259.4 1.07 27.2 0.50 12.7 5.00 127.0

1 / 25 4.88 124.0 5.00 127 2.27 57.6 6.06 154.0 10.21 259.4 1.34 34.0 0.50 12.7 5.00 127.0

1-1/2 / 40 7.25 184.2 7.38 187.4 3.06 77.7 8.19 208.0 14.78 375.4 1.92 48.8 0.50 12.7 5.00 127.0

2 / 50 7.25 184.2 7.38 187.4 3.06 77.7 8.19 208.0 14.78 375.4 2.07 52.6 0.62 15.8 5.00 127.0

BODY SIZE,

IN. / DN

1/4 NPT 2.75 69.9 2.75 69.9 2.04 51.9 5.06 128.5 10.46 265.6 - - - - - - - - - - - - - - - - 4.00 101.6

1/2 / 15 3.88 98.6 4.00 101.6 1.85 47.1 7.00 177.8 11.62 295.2 0.86 21.8 0.38 9.7 4.00 101.6

3/4 / 20 4.88 124.0 5.00 127.0 2.27 57.6 10.19 258.8 13.89 352.8 1.07 27.2 0.50 12.7 4.00 101.6

1 / 25 4.88 124.0 5.00 127.0 2.27 57.6 10.19 258.8 13.89 352.8 1.34 34.0 0.50 12.7 4.00 101.6

1/4 NPT 2.75 69.9 2.75 69.9 2.04 51.9 3.19 81.0 10.38 263.7 - - - - - - - - - - - - - - - - 4.00 101.6

1/2 / 15 3.88 98.6 4.00 101.6 1.85 47.1 4.25 108.0 11.52 292.5 0.86 21.8 0.38 9.7 4.00 101.6

3/4 / 20 4.88 124 5.00 127.0 2.27 57.6 6.06 154.0 13.76 349.4 1.07 27.2 0.50 12.7 4.00 101.6

1 / 25 4.88 124 5.00 127.0 2.27 57.6 6.06 154.0 13.76 349.4 1.34 34.0 0.50 12.7 4.00 101.6

1-1/2 / 40 7.25 184.2 7.38 187.4 3.06 77.7 8.19 208.0 18.62 472.9 1.92 48.8 0.50 12.7 8.00 203.2

2 / 50 7.25 184.2 7.38 187.4 3.06 77.7 8.19 208.0 18.62 472.9 2.07 52.6 0.62 15.8 8.00

Gray Cast Iron Steel/SST E F G

In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm

Gray Cast Iron Steel/SST E F

In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm

A

A

B C D (Max)

TYPES MR95H, MR95HT AND MR95HP

TYPE MR95LD

B C D (Max)

TYPE MR95HD

SWE Tee Handle

SWE

J

203.2

29

Bulletin 71.1:MR95

Ordering Information

When ordering, complete the ordering guide on this page.
Refer to the Specications section on pages 2 and 3.

Ordering Guide

Type (Select One)

MR95L (Low pressure)
MR95LD (Low pressure differential)
MR95H (High pressure)
MR95HD (High pressure differential, must be Steel or

Stainless steel construction)

MR95HP (High pressure, soft-seated)
MR95HT (High pressure/temperature, must be Steel or

Stainless steel construction)

Body Size (Select One)

1/4 NPT
1/2 in. / DN 15
3/4 in. / DN 20
1 in. / DN 25
1-1/2 in. / DN 40 (not available for MR95L Series)
2 in. / DN 50 (not available for MR95L Series)

Body Material and End Connection Style

(See Tables 1 and 2, Select One)

Gray Cast Iron
NPT***
WCC Steel
NPT***
SWE**
Welded CL150 RF***
Welded CL300 RF***
Welded CL600 RF***
Welded PN 16/25/40 RF***
LCC Steel
NPT***
SWE**
Welded CL150 RF***
Welded CL300 RF***
Welded CL600 RF***
Welded PN 16/25/40 RF***
CF8M Stainless steel
NPT***
SWE**
Welded CL150 RF***
Welded CL300 RF***
Welded CL600 RF***
CF3M Stainless steel
NPT***
SWE***
Welded CL150 RF***
Welded CL300 RF***

1. Available in threaded (NPT) end connection only.

2. Integral anges are available for MR95H Series only.

3. Gray cast iron spring case not available for Types MR95LD and MR95HD.
Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.

(1)

(2)

Review the description to the right of each specication and
the information in each referenced table or gure. Specify
your choice whenever a selection is offered.

Body Material and End Connection Style

(2)

(See Tables 1 and 2, Select One) (continued)

CF3M Stainless steel (continued)
Welded CL600 RF***
Welded PN 16/25/40 RF***
Integral CL150 RF*
Integral CL300 RF*
Integral CL600 RF*
Integral PN 16/25/40 RF*
Hastelloy® C
NPT*
Integral CL150 RF*
Integral CL300 RF*
Integral CL600 RF*
Integral PN 16/25/40 RF*
Monel

®

NPT*
Integral CL150 RF*

Integral CL300 RF*
Integral CL600 RF*

Integral PN 16/25/40 RF*
Aluminum-Bronze
Integral CL150 RF*
Integral CL300 RF*
Integral CL600 RF*
Integral PN 16/25/40 RF*

Spring Case Material (Select One)

Gray cast iron (standard for gray cast iron bodies)

(3)

***

WCC Steel (standard for steel or

Stainless steel bodies)***

LCC Steel***
CF8M Stainless steel (optional for

Stainless steel bodies)**

Hastelloy® C
Monel®

Trim Material (See Table 7, Select One)
Metal Seat

416 Stainless steel

Trim 1
Trim 2

Trim 22

316 Stainless steel

Trim 3

Trim 23
Hastelloy® C
Trim 5

- continued -

30

Ordering Guide (continued)

Bulletin 71.1:MR95

Trim Material (See Table 7, Select One) (continued)

Metal Seat (continued)
Monel

®

Trim 6
Alloy 6

(1)

Trim 4

Trim 24

Elastomer Seat
Nitrile (NBR)

Trim 7
Trim 8
Trim 9

Trim 10

Trim 11

Fluorocarbon (FKM)

Trim 12
Trim 13

Trim 14

Trim 15

Peruoroelastomer (FFKM)
Trim 16
Polytetrauoroethylene (PTFE)

Trim 17
Trim 18
Trim 19

Ethylenepropylene (EPDM)

Trim 20

Diaphragm (Select One)

Neoprene (CR)
Fluorocarbon (FKM)
Ethylenepropylene (EPDM)

Monel

®

Hastelloy® C
302 Stainless steel

302 Stainless steel (Steam Service)

(2)

Outlet or Differential Pressure Range (Select One)
Type MR95L or MR95LD

Steel Spring
2 to 6 psig/psi / 0.14 to 0.41 bar, Yellow***
5 to 15 psig/psi / 0.34 to 1.0 bar, Green***

13 to 30 psig/psi / 0.90 to 2.1 bar, Red***

302 Stainless steel Spring

2 to 6 psig/psi / 0.14 to 0.41 bar, Yellow***
5 to 15 psig/psi / 0.34 to 1.0 bar, Unpainted***
13 to 30 psig/psi / 0.90 to 2.1 bar, Unpainted***

Outlet or Differential Pressure Range

(Select One) (continued)

Type MR95H or MR95HD

1/4 NPT and 1/2 to 1 in. / DN 15 to 25 body sizes

Steel Spring

15 to 30 psig/psi / 1.0 to 2.1 bar, Yellow***

25 to 75 psig/psi / 1.7 to 5.2 bar, Green***
70 to 150 psig/psi / 4.8 to 10.3 bar, Red***
302 Stainless steel Spring

(3)

15 to 30 psig/psi / 1.0 to 2.1 bar, Yellow***
25 to 75 psig/psi / 1.7 to 5.2 bar, Unpainted***
70 to 150 psig/psi / 4.8 to 10.3 bar, Unpainted***

1-1/2 and 2 in. / DN 40 and 50 body sizes

Steel Spring

5 to 80 psig/psi / 0.34 to 5.5 bar,

Black with light blue stripe***

60 to 120 psig/psi / 4.1 to 8.3 bar, Light Gray***

100 to 140 psig/psi / 6.9 to 9.7 bar, Yellow***
120 to 150 psig/psi / 8.3 to 10.3 bar, Black***
Type MR95HT

1/4 NPT and 1/2 in. / DN 15 body size

Inconel® Spring
15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
80 to 300 psig / 5.5 to 20.7 bar, Unpainted***

3/4 and 1 in. and DN 20 and 25 body sizes
17-4 PH Stainless steel Spring

15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
80 to 300 psig / 5.5 to 20.7 bar, Unpainted***

1-1/2 and 2 in. and DN 40 and 50 body sizes
17-4 PH Stainless steel Spring

15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
60 to 260 psig / 4.1 to 17.9 bar, Unpainted***
Type MR95HP

1/4 NPT and 1/2 in. / DN 15 body size

Inconel® Spring
15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
80 to 400 psig / 5.5 to 27.6 bar, Unpainted***

3/4 and 1 in. / DN 20 and 25 body sizes
17-4 PH Stainless steel Spring

15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
80 to 400 psig / 5.5 to 27.6 bar, Unpainted***

1-1/2 and 2 in. / DN 40 and 50 body sizes
17-4 PH Stainless steel Spring

15 to 100 psig / 1.0 to 6.9 bar, Unpainted***
60 to 300 psig / 4.1 to 20.7 bar, Unpainted***
Replacement Parts Kit (Optional)

Yes, send one replacement parts kit to match this order.

1. Alloy 6 is not available for 1/4 in. size.

2. Only available with Stainless steel seat, orice/valve plug, valve plug guide and stem/stem guide.

3. Available for 3/4 and 1 in. / DN 20 and 25 body sizes only.
Monel® and Inconel® are marks owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.

- continued -

31

Bulletin 71.1:MR95

Ordering Guide (continued)

Regulators Quick Order Guide

* * * Readily Available for Shipment

* * Allow Additional Time for Shipment

Special Order, Constructed from Non-Stocked Parts.

*

Consult your local Sales Ofce for Availability.

Availability of the product being ordered is determined by the component with the
longest shipping time for the requested construction.

Specication Worksheet

Application:

Specic Use __________________________________
Line Size ____________________________________
Fluid Type and Specic Gravity ___________________
Fluid Temperature _____________________________
Does the Application Require Overpressure Protection?

Yes No If yes, which is preferred:
Relief Valve Monitor Regulator Shutoff Device

Is overpressure protection equipment selection
assistance desired?

Pressure:

Maximum Inlet Pressure (P
Minimum Inlet Pressure (P

) __________________

1max

) ___________________

1min

Downstream Pressure Setting(s) (P2) ______________
Maximum Flow (Q

) __________________________

max

Performance Required:

Accuracy Requirements? _______________________
Need for Extremely Fast Response? _______________

Other Requirements: __________________________
____________________________________________

Industrial Regulators

Emerson Process Management
Regulator Technologies, Inc.

USA - Headquarters
McKinney, Texas 75070 USA
Tel: [phone]
Outside U.S. [phone]

Asia-Pacic

Shanghai 201206, China
Tel: [phone]

Europe
Bologna 40013, Italy
Tel: [phone]

Middle East and Africa
Dubai, United Arab Emirates
Tel: [phone]

For further information visit www.fisherregulators.com

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC,
a business of Emerson Process Management.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or

guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications of such

products at any time without notice.

Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

Natural Gas Technologies

Emerson Process Management
Regulator Technologies, Inc.

USA - Headquarters
McKinney, Texas 75070 USA
Tel: [phone]
Outside U.S. [phone]

Asia-Pacic

Singapore 128461, Singapore
Tel: [phone]

Europe
Bologna 40013, Italy
Tel: [phone]
Chartres 28008, France
Tel: [phone]

Middle East and Africa
Dubai, United Arab Emirates
Tel: [phone]

TESCOM

Emerson Process Management
Tescom Corporation

USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: [phone]
[phone]

Europe
Selmsdorf 23923, Germany
Tel: [phone]

Asia-Pacic

Shanghai 201206, China
Tel: [phone]

The distinctive diamond shape cast into every
spring case uniquely identifies the regulator
as part of the Fisher® brand and assures you
of the highest-quality engineering, durability,
performance, and support.

©Emerson Process Management Regulator Technologies, Inc., 2013, 2014; All Rights Reserved