Emerson Fisher EZR series Instruction Manual

Summary

Introduction ................................................................... 1

Description.................................................................... 1

Characteristics .............................................................. 2

Labelling ....................................................................... 3

Spare Parts................................................................... 4

Operation ...................................................................... 6

Dimensions and Weights .............................................. 7

Installation .................................................................... 8

Commissioning ............................................................. 9

Maintenance ................................................................. 10

Introduction

The Type EZR is a pilot-operated regulator used in
transmission and distribution networks or pipe lines
supplying industries and commercial businesses.

The Type EZR can be equipped with a slam shut Type OS2

(Type EZR body change) which permits the gas ow to be

cut off rapidly and totally in the case of under or over outlet
regulator pressure.

Description

The Type EZR consists of:

A version without integral slam shut:

• A body («E body» type), a bonnet

• A regulation subassembly consisting of a slotted cage and

a diaphragm/plug

• A travel indicator, an inlet screen

• A pilot assembly consisting of a lter with bleeding screw
(ltration 20 microns), an adjustable restrictor and a pilot

set to the required outlet pressure

Pilot-Operated Regulator

Figure 1. Type EZR Pilot-Operated Regulator

A version with integral slam shut:

• A body («X body» type), a bonnet, a connecting part

• A regulation subassembly consisting of a slotted cage

and a diaphragm/plug

• A travel indicator

• A pilot assembly consisting of a lter with bleeding screw
(ltration 20 microns), an adjustable restrictor and a pilot
adjusted to the required outlet pressure

• A removable slam shut orice

• A integral O-ring tightshut valve/bypass assembly

• A release relay Type OS2 according to D103683X012_
OS2_IM:

- a mechanism box (BM)

- a safety manometric box (BMS) to be connected outlet

side of the regulator

The Type EZR is in conformity with the

PED 2014/68/EU and is classied in Category IV.

Type EZR

Instruction Manual
D103681X012

December 2017

Europe, Middle East and Africa Only

Material

Regulator

Body Steel
Bonnet Steel
Slotted disc Stainless steel

Diaphragm, O-rings Nitrile (NBR)

Slam shut

Connecting part Steel

Orice Stainless steel
Valve plug Stainless steel

Pilot

Body Stainless steel

Manometric box Stainless steel or Aluminium

Restrictor Stainless steel
Filter Aluminium

Cartridge Polythene

Coefcients Capacity DN 25 DN 50 DN 80 DN 100 DN 150

C

g

100% 480 1800 3400 5550 11200

60% 290 1020 1970 3300 7150

30% 140 560 970 1690 3570

C

1

100% 33 36 37 38 36

60% 29 28 29 27 30

30% 30 29 26 26 26

Valve plug travel (mm) 35 35 50 50 50

Table 3. Flow Coefcients and Valve Plug Travel Information

B05a

BMP Size 1 2 3 4 5 6 7 8

Spring Colour White Yellow Black Green Blue Red Blue Red

Spring Range

(bar)

0.5 1.0 2.8 5.2 9.7 13.8 24.1 31.0

1.0 2.8 5.2 9.7 13.8 24.1 31.0 48.3

B05b

Table 4. Pilot Pressure Ranges

Connections

Inlet / Outlet: ISO PN 100 B (ANSI 600 RF)
ISO PN 50 B (ANSI 300 RF)
ISO PN 20 B (ANSI 150 RF)

Other possibilities exist (contact factory)

ISO PN 16 B, 25 B, 40 B

Pilot Impulse line (IP): 1/4’’ NPT tapped
Pilot Monitor impulse line (IM): 1/4’’ NPT tapped
Intermediate impulse line (PI): 1/4’’ NPT tapped
Slam shut impulse line (IS): 1/4’’ NPT tapped
Mechanism box vent (E): 1/4’’ NPT tapped

Impulse diameter: Pipe interior Ø 8/10mm min.

Operating pressure PS 72.4 bar

(1)

SLAM SHUT

Operating temperature TS -17 / 66°C

(1)

Accuracy AG

2.5

REGULATOR 5 (Piston)
Outlet pressure Pa 0.5 to 48.3 bar Set point range Pt up to 100 bar
Minimum differential ∆P min 2 to 3 bar PILOT

Maximum operating differential

PN 20

∆P max

18.6 bar

Type of pilot

Standard 161EB

PN 50 50.0 bar Monitor 161EBM

PN 100 55.2 bar Manometric box PS BMP 52 bar

Max emergency differential ∆P emerg 72.4 bar

Fluid

Groups 1 and 2 according to PED 97/23/EC 1

st

and 2nd family gas according

to EN 437 or other gases (compressed air, nitrogen). The gas must be
noncorrosive, clean (ltration on inlet side necessary) and dry.

Accuracy AC 2.5 - 5

1. Values correspond to the characteristics of the regulator diaphragm.

Table 1. General Characteristics for Type EZR Regulator

B05c

Body P

max

(bar) T

min

(°C) T

max

(°C)

A216WCB 96.7 -20 71

A352LCC 100 -30 71

The regulator body and the slam shut have been designed to support different pressure and temperature levels

Table 2. Pressure and Temperature Characteristics

CHARACTERISTICS

Type EZR

2

Europe, Middle East and Africa Only

PN

PT
PS

Pumax2018.6

18.6

32

Reduction

C

g

See Table3

0062

(Gaz Naturel)

28320 Gallardon-France

REGULATEUR/REGULATOR

IV

EZR -

SECURITE/SLAM-SHUT

GROUPE

1

N°

série
serial

Date Fab/Test
Mfg/Test date

CatPS

norme
standard
norme
standard

EN 334

mode défaillance
failure mode
classe sécurité
slam shut class

DN PN

Pumax bar

FISHER

FRANCEL

PT

bar

Temp TS

-17/+66°C

-

Class Type C

g

matériau
shell

A352LCC+A350LF2

OS2 -

Standard

EN 14382 -

BMS 027/017 BMS 162
BMS 236/315 BMS 071

Min only All

Max-Min typesofBMS

SecurityClass

AB

BMS Setting

DN 25 50 80 100

20B1 50B1 100B2 16B 25B 40B

Otherconfigurations available (contactfactory)

DDMMYEAR

bar

Max only

Depending on BMS conguration

-

150

PN

100%

60%

30%

50

50

79

50

100

72.4

114

72.4

16

16

26

16

25

25

40

25

40

40

63

40

E04a

Figure 3. Type EZR Regulator with Type OS2 Slam Shut Label

0062

(Gaz Naturel)

28320 Gallardon-France

REGULATEUR/
REGULATOR

IV

GROUPE

1

N°

série
serial

Date Fab/Test
Mfg/Test date

Cat

PS

norme
standard

EN 334

mode défaillance
failure mode

DN PN

Pumax bar

FISHER

FRANCEL

PT

bar

Temp TS

-17/+66°C

-

Class

DS

Type

C

g

matériau
shell

A352LCC+A350LF2

bar

Other configurations available (contact factory)

EZR

Date DDMMYEAR

DN 25 50 80 100

-

150

20B1 50B1 100B2 16B 25B 40B

PN

PN

PT
PS

Pumax2018.6

18.6

32

Reduction

C

g

See Flow Table 3

100%

60%

30%

50

50

79

50

100

72.4

114

72.4

16

16

26

16

25

25

40

25

40

40

63

40

Labelling

Figure 2. Type EZR Regulator Label

E04b

Type EZR

3

Europe, Middle East and Africa Only

Spare Parts

Type 161EB

Type 161EBH

Type 161EBM Type 161EBHM

Figure 4. Types 161EB, 161EBH, 161EBM

and 161EBHM Pilots

B08

19

18

Figure 5. Filter

B09

17

Figure 6. Adjustable

Restrictor

B06

B11

Description Key

Reference

Pilot Type

161EB 161EBH 161EBM 161EBHM

Pilot kit 0.34 to 13.8 bar 15 R161X000012 - - - - - - - - - - - R161MX00012 - - - - - - - - - - -

Pilot kit 13.8 to 24.1 bar 15 R161X000022 - - - - - - - - - - - R161MX00022 - - - - - - - - - - -

Pilot kit EBH(M) 16 - - - - - - - - - - - R161HX00012 - - - - - - - - - - - R161HMX0012

O-ring 17 - - - - - - - - - - - 1C8538X0052 - - - - - - - - - - -

Filter cartridge 18 - - - - - - - - - - - 17B6813X012 - - - - - - - - - - -

O-ring 19 - - - - - - - - - - - 1F269206992 - - - - - - - - - - -

SAV kit 0.34 to 13.8 bar

(1)

- - - - 197435 - - - - - - - - - - - 197438 - - - - - - - - - - -

SAV kit 13.8 to 24.1 bar

(1)

- - - - 197436 - - - - - - - - - - - 197439 - - - - - - - - - - -

SAV kit 24.1 to 48.3 bar

(1)

- - - - - - - - - - - - - - - 197437 - - - - - - - - - - - 197440

1. The SAV kits include item numbers 15 or 16, 17, 18 and 19.

BMP

Size

Spring Reference

1 17B1260X012

2 17B1262X012

3 17B1259X012

4 17B1261X012

5 17B1263X012

6 17B1264X012

7 17B1263X012

8 17B1264X012

To pass from 0.5 to 13.8 bar or
from 24.1 to 48.3 bar the spring
must be changed.

Table 5. Pilot, Restrictor and Filter Spare Parts List

Type EZR

4

Europe, Middle East and Africa Only

Spare Parts

Regulator,

Type EZR

Description Key

Reference

DN / in.

25 / 1 50 / 2 80 / 3 100 / 4 150 / 6

with
slam shut

O-ring 1 400009 400024 400091 400045 400262

O-ring 2 19B2838X012 18B2124X012 18B8514X012 18B2140X012 19B0359X012

Guide 3 401950 401951 401952 401953 401954

O-ring 4 400527 400263 400258 400260 400261

Bypass 5 180977 180977 180977 180977 180977

SAV kit PN 20 1 to 14 197421 197422 197424 197425 197427

SAV kit PN 50/100 1 to 14 197421 197423 197424 197426 197427

without slam
shut

SAV kit PN 20 6 to 14 197428 197429 197431 197432 197434

SAV kit PN 50/100 6 to 14 197428 197430 197431 197433 197434

with/without
slam shut

O-ring 6 18B3438X012 18B3438X012 10A8931X012 10A8931X012 10A3800X012

O-ring 7 1H2926X0032 1H2926X0032 1D191706992 1D191706992 1D191706992

O-ring 8 13A1584X052 13A1584X052 10A3803X062 10A3803X062 T12050X0012

O-ring 9 19B2838X012 18B2124X012 18B8514X012 18B2140X012 19B0359X012

PN 20 diaphragm 10 39B2397X012 29B2715X022 39B2726X012 38B5965X012 49B0357X012

PN 50/100 diaphragm 10 39B2397X012 28B2123X052 39B2726X012 39B3996X012 49B0357X012

O-ring 11 13A1584X052 13A1584X052 10A3803X062 10A3803X062 T12050X0012

O-ring 12 1E216306992 1E216306992 1J4888X0052 1J4888X0052 11A8741X052

O-ring 13 14A5713X012 10B4428X012 10B4366X012 10B4373X012 1H862306992

O-ring 14 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1D269206992

Safety manometric box - - - - See D103683X012_OS2_IM manual

Table 6. Types EZR and EZR-OS2 Spare Parts List

B13

5

6

7

8

9

10

11

12

13

14

4

3

2

1

B12

Figure 7. Types EZR and EZR-OS2 Spare Parts

Type EZR

5

Europe, Middle East and Africa Only

Operation

Regulator

The Type EZR is a pilot-driven, diaphragm/plug regulator.

Tight shutoff is achieved by the diaphragm/plug pushing

against the slotted cage, the force of the closing spring and

the inlet pressure.

• Opening

As the ow increases, the outlet pressure Pd

decreases on the outlet side of the regulator and on
the pilot diaphragm.

Due to the force of the spring, the pilot opens.

The pilot ow increases, the pressure loss through the

pilot restrictor increases.

The modulated pressure Pm decreases.

The force of the closing spring and that of the Pm

becomes inferior to that provoked by the Pu, the
regulator OPENS.

• Closing

As the ow decreases, the Pd increases outlet side of

the regulator.

The force of the pilot diaphragm is overcome by the force

of the spring, the pilot closes.

The pressure loss through the pilot restrictor decreases.

The force of the closing spring and that of the Pm

becomes superior to that provoked by the Pu, the

regulator CLOSES.

Slam Shut

The pressure of the zone to be protected (generally the pipeline
on the outlet side of the regulator and after the slam shut) is
sensed by the safety manometric box (BMS).

If the pressure exceeds the set tripping pressure, the release

relay frees the valve plug.

Due to the force of the closing spring and the uid (trying to
close), the valve plug closes on the orice.

The gas ow is obstructed until the fault has been corrected

and the mechanism box manually rearmed.

To reopen the valve plug an equal pressure balance on inlet
and outlet sides of the regulator is required.

The mechanism box is rearmed after opening the
internal bypass.

Rearming and balancing are achieved at the same time.

B18

Figure 8. Type EZR Operational Schematic

INLET PRESSURE
MODULATED PRESSURE

OUTLET PRESSURE

Type EZR

6

Europe, Middle East and Africa Only

Dimensions and Weights

Table 11. Dimensions (mm) - Types EZR and EZR-OS2 (part 2)

B17a

Body DN

A

D J MPN

16 20 25 40 50 100

25 193.5 184 193.5 193.5 197 210 165 68 54
50 254 254 267 267 267 286 165 68 54

80 310 298 317 317 317 337 181 95 54
100 350 352 368 368 368 394 187 95 54
150 451 451 473 473 473 508 249 95 54

Body DN B C E H

25 233 315 348 250

50 243 330 357 265

80 361 366 410 301

100 393 410 454 345

150 423 396 468 332

Table 7. Dimensions (mm) - Type EZR-OS2 (part 1)

B15b

Body DN PN 20 PN 50 PN 100

25 20 21 22

50 39 41 43

80 63 69 71

100 104 11 3 123

150 192 2 11 244

Table 8. Weights (kg) - Type EZR-OS2

B16b

Body DN B C E

25 220 62 335

50 226 83 340

80 343 105 392

100 372 137 433

150 420 178 465

Table 9. Dimensions (mm) - Type EZR (part 1)

B15a

Body DN PN 20 PN 50 PN 100

25 12 14 16

50 26 27 31

80 50 51 57

100 67 73 88

150 97 108 161

Table 10. Weights (kg) - Type EZR

B16a

Table 12. Dimensions (mm) - BMS (Safety Manometric Box)

B17b

Type F G

Diaphragm 162 181

Piston 71 204

Bellows 74 223

M

J

E

B

C

A

D

B14b

Figure 10. Dimensions (mm) - Type EZR

C

N

A

L

B

F

E

R

M

E

=
=

E

T

I

H

W

C

L

S

O

D

E

C

N

A

L

B

F

E

R

M

E

=

=

E

T

I

H

W

C

L

S

O

D

E

C

G

H

A

B

F

D

E

25 Disassembly

M

J

B14a

Figure 9. Dimensions (mm) - Type EZR-OS2

Type EZR

7

Europe, Middle East and Africa Only

Installation

• The regulator is installed on horizontal pipeline.

Version with slam shut, the release relay is situated
towards the bottom (see schematic).

• Installation according to EN12186 recommended.

• Installaccordingtodirectionofuidow(arrow).

• When assembling with adjacent elements care

must be taken not to create pressure force on the
body and the assembling elements (bolts, O-rings,

anges)shouldbecompatiblewiththegeometryand

working conditions of the equipment.

• If the case arises a support must be used to avoid

pressure force on the body (a support can be installed

undertheanges).

• Version with integral slam shut , connect the safety

manometric box (IS) to the impulse at 4D on a straight
run of the outlet pipe.

• It is recommended to separate the slam shut impulse

line (IS) from that of the pilot (IP). Do not connect the
impulses on the lower generator line.

• It is recommended to install an isolation valve and an

atmospheric valve, which can be useful for slam shut

trippingandverications.

• Nomodicationshouldbemadetothestructureof

the equipment (drilling, grinding, soldering...).

• It is recommended to install a servicing valve on the

outlet pipeline to facilitate adjustments and bleeding
off to the atmosphere.

•

Verify that the inlet side is protected by an

appropriate device(s) to avoid exceeding the limits of
utilization (PS, TS).

•

Verify that the limits of utilization correspond to the

appropriate operating conditions.

•

Version with integral slam shut, verify that the safety

manometric box (BMS) and spring correspond to the
appropriate operating conditions on the outlet side
of the regulator.

•

The equipment should not receive any type of shock,

especially the release relay.

•

The user should verify or carry out a protection

adapted to the environment.

•

Fire, seismic and lightening are not taken into

consideration in standard regulators. If required, a

specialproductselectionand/orspeciccalculations
maybesuppliedaccordingtospecicrequirements.

• Version without integral slam shut, verify that a

pressure limiting device on the outlet side of the
regulator guarantees a pressure limit inferior or
equal to the pilot PS.

Allinterventionsontheequipmentshouldonlybeperformedbyqualiedandtrainedpersonnel.

!

WARNING

!

WARNING

B19

Figure 11. Type EZH Installation Congurations

Type EZR

8

Europe, Middle East and Africa Only

• Servicing valve

 Open slightly

• Pilot

 Screw to set outlet pressure

• Outlet valve

 Open slowly

• Restriction
 Set to "RUN" by successive fractions 2, 4 or 6

• Servicing valve

 Closed

The equipment is commissioned

It is recommended to seal the release relay

Commissioning

Operations concerning the integral slam shut version are in italic.

All interventions on equipment should only be

performedbyqualiedpersonnel

PreliminaryVerications

Start-up positions

• Inlet and outlet valves

 Closed

Verify the absence of pressure between inlet and

outlet valves

• Slam shut valve plug

 Closed

• Pilot A

 Unloaded

• Restriction B
 START position

Slamshutsetpointverication

Using the atmospheric valve, inject a pressure equal to the

pressure required for the regulator

• 1

st

release relay stage

 Set (Stage 1)

• Slam shut valve plug

 Open (Stages 2 and 3)

 Progressively increase the pressure to

reach tripping

 Adjust setting if necessary (D103683X012_OS2_IM)

Note the set point value on the equipment

or mark it on a commissioning document

Positions before commissioning

• Impulse line isolating valve

 Open

• Impulse line atmospheric valve

 Closed

• Slam shut valve plug

 Closed

• Servicing valve

 Closed

The equipment is ready for commissioning

Commissioning

(Act slowly)

• Inlet valve

 Open very slowly

• 1st release relay stage

 Set (Stage 1)

• Slam shut valve plug

 Bypass (Stage 2)

 Open (Stage 3)

Triggered

position

B20

Stages 2 and 3

Stage 1

Figure 13. Setpoint Verication Phase

B22

Figure 12. Type EZH-OS2 Regulator

INLET PRESSURE
MODULATED PRESSURE

OUTLET PRESSURE

Type EZR

9

Europe, Middle East and Africa Only

Maintenance

Operations concerning the integral slam shut version are in italic.

Servicing Check

Recommended frequency:

• Twice yearly minimum

Verication:

• Set point verication

• Regulator valve plug tightness

• Tripping and set point value

• Slam shut valve tightness

Departure positions

• Inlet valve Open

• Outlet valve Open

• Slam shut valve plug Open

• Regulator In operation

Inlet and outlet sides of regulator under pressure

Tightshutverication(and tripping verication for

integral slam shut versions)

• Inlet valve Closed

• Outlet valve Closed

• Regulator Observe the evolution of the outlet

pressure (control regulator tightness)

Filterverication

• Purge the lter C

• Verify the cartridge

If the outlet pressure increases Int ernal leak

Control the regulator valve plug

Control the regulator orice

Control the pilot or contact after-sales

If the outlet pressure decreases External leak
Locate and seal the leak or contact after-sales

If the outlet pressure is constant The regulator is tightshut

Increase the set point until tripping occurs
(without exceeding the outlet limits)

If the slam shut valve plug will not close Operating fault

Control the release relay
Control the slam shut valve plug or contact after-sales

If the slam shut valve plug closes Operating correctly

Observe the evolution of the outlet pressure (control tightness)

If the outlet pressure is constant

Purge the outlet side of the regulator
Observe the evolution of the outlet pressure (control tightness)

If the outlet pressure increases Internal leak

Control the slam shut valve plug
Control the slam shut orice
Control the bypass or contact after-sales

If the outlet pressure is constant Slam shut valve plug is tightshut

Table 12. Troubleshooting for Types EZR and EZR-OS2 Regulators

Type EZR

10

Europe, Middle East and Africa Only

Disassembly

Recommended frequency:
Every 2 to 6 years (or less depending on operating conditions)

Verication:
Condition of O-rings, diaphragms, lubrication

Replacement:

O-rings, diaphragm

Tools:
Dimensions according to tables below

Preliminary Operations

• Valve plug closed

• Inlet and outlet valves closed

• Bleedoffoutletpressure

• Bleedoffinletpressure

• Unscrew the pilot impulse connection

• Unscrew the screws (key 1) xing the bonnet (key 2)

• Remove the bonnet (key 2)

• Remove the diaphragm/plug assembly (key 3)

Maintenance (continued)

• Remove the slotted cage (key 4), the O-ring (key 5), the

strainer (key 6) (or the space washer (key 6))

• Clean parts and replace them if necessary

Pilot

• Unscrew the manometric box screws

• Remove the diaphragm

Slam Shut (Version with slam shut)

• Unscrew the BMS impulse line connector (IS)

• Remove the BM cover (key 7)

• Unscrew the BM xing screw (key 8)

• Remove the holding pin (key 10)

• Remove the BM (key 9)

• Unscrew the screws (key 11) from the connecting part

(key 12)

• Remove the connecting part (key 12)

• Remove the spring (key 13) and the valve plug (key 14)

• Unscrew the bypass (key 15)

• Unscrew the screws CHC (key 16) (DN 100 and 150)
Removing the orice (key 17) (not recommended) requires a

special extraction tool

B24

Figure 14. Type EZR-OS2

B25a

Body

DN / In.

Screw

keys 1 and 11

Spanner,

in.

Screw

keys 1 and 11

Torque N.m.

Fixation
keys 18

Connector

key 19

Bypass

key 15

25 / 1 9/16 - 12 x 1 3/4 13/16 11 0 8 130 14

50 / 2 1/2 - 13 x 1 1/2 3/4 110 9 130 14

80 / 3 5/8 - 11 x 1 3/4 15/16 175 28 280 20

100 / 4 3/4 - 10 x 2 1/4 1 1/8 260 28 280 24

150 / 6 1 - 8 x 2 3/4 1 1/2 510 70 410 24

B25b

Table 13. Torque Specications

Type EZR

11

Europe, Middle East and Africa Only

Reassembly

• Perform the above operations in reverse order (respect

tightening torques)

• Replace the O-rings and diaphragm at each disassembly

Slam Shut Reassembly (Version with slam shut)

• The valve plug should be held in an upper position using

a packing gland and a box to facilitate reassembly

• Precaution must be taken concerning the passage of the

valve plug over the segments

Maintenance (continued)

• Lubricate screws before tightening

• Lightly lubricate the O-rings (silicone grease) except for

the valve plug O-ring

• Lightly lubricate the stem (silicone grease)

• Lubricate the release relay mechanism (yoke and bolt)

(molybdenum graphite grease)

• Lubricate the BMS spring (molybdenum graphite grease)

• A special tool is required for reassembling a new orice

Type EZR

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Europe, Middle East and Africa Only

Fisher.com

Americas
McKinney, Texas 75070 USA
T [phone]

[phone]

Europe
Bologna 40013, Italy
T [phone]

Asia Pacic

Singapore 128461, Singapore
T [phone]

Middle East and Africa

Dubai, United Arab Emirates
T [phone]

D103681X012 © 2009, 2017 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 12/17.
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 Automation Solutions.

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regarding the products or services described herein or their use or
applicability. All sales are governed by our terms and conditions, which
are available on request. We reserve the right to modify or improve the

designs or specications of our products at any time without notice.

Emerson Process Management Regulator Technologies, Inc does not
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Emerson Process Management Regulator Technologies, Inc. product
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