packages can be ordered and stocked ahead of time
for fast replacement.
• Easy In-Line Maintenance — Top-entry design
reduces maintenance time and manpower
requirements; trim parts can be inspected, cleaned,
and replaced without removing the body from the line.
• In-Service Travel Inspection — Standard travel
indicator assembly with protective cover permits
periodic inspection of plug travel without removing
regulator from service.
• High Accuracy — Total proportional band of
0.25-inch w.c. / 0.62 mbar or less at lower
set pressures.
• Proven Technology — Time-proven regulator
technology has been adapted to meet the
speci c requirements of vapor recovery
(depadding) applications.
Introduction
The Type 1290 vapor recovery regulator controls vessel
blanketing gas pressure when the vessel is being lled
with uid or when ambient temperature causes the vapor
gas to expand. The system monitors the increasing
blanket pressure and throttles open to pass excess
blanketing gas into a vapor disposal or reclamation system
thus controlling the desired set pressure of the vessel.
The vapor recovery regulator is not intended to
be used as an ASME certi ed relief device for
overpressure protection. It is to be used as part of
the gas blanketing system to control the out ow of
blanketing gas under normal conditions and to collect
vessel vapors for the vapor disposal or reclamation
system. You should provide alternate methods of
emergency overpressure protection per the American
Petroleum Institute Standard 2000 (API 2000).
The vapor recovery regulator responds to any changes
in the blanket gas pressure and throttles open or
closed to control the ow of the blanket gas out of the
vessel. A vacuum source on the outlet of the regulator
is usually necessary to ensure ow of low pressure
www.fisherregulators.com
D101964X012
Bulletin 74.2:1290
Specications
Body Size and End Connection Styles
BODY SIZE,
NPS / DN
1 or 2 /
25 or 50
3, 4, or 6 /
80, 100, or 150
8 x 6 or 12 x 6 /
200 x 150 or 300 x 150
MAIN VALVE END CONNECTION STYLE
Cast Iron
NPT, CL125 FF or
CL250 RF anged
CL125 FF or
CL250 RF anged
- - - -
(1)
WCC Steel or
CF8M Stainless Steel
NPT, SWE, BWE, CL150 RF,
CL300 RF, CL600 RF,
or PN 16/25/40 anged
BWE, CL150 RF, CL300 RF,
CL600 RF, or PN 16 anged
BWE, CL150 RF,
CL300 RF, CL600 RF,
or PN 25 anged
Construction Materials
See Table 1
Maximum Main Valve Inlet Pressures
(2)
See Table 3
Maximum Differential Pressure
35 psi / 2.4 bar
Control Pressure Ranges
(2)
See Table 2
Type 95H Supply Pressure Settings
TYPE 1098-EGR MAIN VALVE WITH
PILOT
TYPE
Y291AL8 psig / 0.55 bar13 psig / 0.90 barBlack
Y291A
GREEN SPRING, NPS / DN
1, 2, 3, or 4 /
25, 50, 80, or 100
8 psig / 0.55 bar
8 psig / 0.55 bar
9 psig / 0.62 bar
10 psig / 0.69 bar
11 psig / 0.76 bar
14 psig / 0.97 bar
15 psig / 1.0 bar
6 or 8 x 6 /
150 or 200 x 150
13 psig / 0.90 bar
13 psig / 0.90 bar
14 psig / 0.97 bar
14 psig / 0.97 bar
15 psig / 1.0 bar
18 psig / 1.2 bar
20 psig / 1.4 bar
Unpainted
Light blue
Type Y291A or Y291AL Pilot Orice Diameter
3/8-inch / 9.5 mm
Flow Capacities
See Table 4
SPRING
COLOR
Orange
Red
Yellow
Green
Black
Flow Coefcients
See Table 5
Control Line Connection
1/2 NPT
Exhaust Line Connection
3/4 NPT
Supply Pressure and Spring Case Connections
1/4 NPT
Orice Diameters and Travels
BODY SIZEPORT DIAMETERTRAVEL
NPSDNInchmmInchmm
1
2
3
4
6
8 x 6
12 x 6
Material Temperature Capabilities
25
50
80
100
150
200 x 150
300 x 150
1-5/16
2-3/8
3-3/8
4-3/8
7-3/16
7-3/16
7-3/16
33
60
86
111
183
183
183
3/4
1-1/8
1-1/2
2
2
2
2
(2)
Nitrile (NBR):
-20 to 180°F / -29 to 82°C
Fluorocarbon (FKM):
For Inches w.c. Setpoints: 40 to 300°F / 4 to 149°C
For psig Setpoints: 0 to 300°F / -18 to 149°C
Ethylenepropylene (EPDM):
-20 to 275°F / -29 to 135°C
Peruoroelastomer (FFKM):
-20 to 300°F / -29 to 149°C
Approximate Weights
NPS 1 / DN 25: 85 pounds / 39 kg
NPS 2 / DN 50: 100 pounds / 45 kg
NPS 3 / DN 80: 145 pounds / 66 kg
NPS 4 / DN 100: 195 pounds / 88 kg
NPS 6 / DN 150: 380 pounds / 172 kg
NPS 8 x 6 / DN 200 x 150: 740 pounds / 336 kg
NPS 12 x 6 / DN 300 x 150: 1265 pounds / 574 kg
19
29
38
51
51
51
51
1. End connections for other than U.S. standards can usually be provided. Consult your local Sales Ofce.
2. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.
blanket gas out of the vessel into a vapor disposal or
reclamation system. The higher the vacuum pressure
of the vacuum source, the higher the ow capacity of
the vapor recovery regulator.
regulator controls vessel blanketing gas pressure
when the vessel is being lled with uid or
when ambient temperature causes the vapor gas
to expand.
The system monitors the increasing blanket pressure
Principle of Operation
and throttles open to pass excess blanketing gas into
a vapor recovery system thus controlling the desired
The Type 1290 vapor recovery regulator serves as
set pressure of the vessel.
a vessel vapor recovery system. The Type 1290
2
CONTROL LINE
TYPE Y291A PILOT
SETPOINT
ADJUSTMENT
Bulletin 74.2:1290
TYPE 1098-EGR
MAIN VALVE
FIXED
RESTRICTION
VAPOR RECOVERY
VACUUM SOURCE
EXHAUST LINE
VAPOR PRESSURE
TANK
E0063
ATMOSPHERIC PRESSURE
LOADING PRESSURE
INTERMEDIATE PRESSURE
VACUUM PRESSURE
TANK PRESSURE
Figure 2. Operational Schematic
Table 1. Construction Materials
MAIN VALVE
Body and
Body Flange
Cast iron
WCC Steel
CF8M
Stainless steel
1. Special construction materials are offered for your system compatibility. Contact your local Sales Ofce for additional information.
Inconel® is a mark owned by Special Metals Corporation.
Plug and
Seat Ring
416 Stainless
steel
416 Stainless
steel
316 Stainless
steel
(1)
SpringCage
SIZE 40
ACTUATOR
PILOT
SUPPLY
REGULATOR
SteelCast ironSteelDuctile ironCast iron
SteelSteelSteelDuctile ironWCC Steel
316 Stainless
Inconel®
X-750
steel
Whisper
Stainless steel
CF8M Stainless
steel
CF8M Stainless
steel
Trim™ Cage
TYPE 95H SUPPLY
REGULATOR
DIAPHRAGMSO-RINGS AND SEALS
Nitrile (NBR),
Nitrile (NBR),
Fluorocarbon (FKM),
or Ethylenepropylene
(EPDM)
Fluorocarbon (FKM),
Ethylenepropylene
(EPDM), or
Peruoroelastomer
(FFKM)
3
Bulletin 74.2:1290
Table 2. Control Pressure Ranges
PILOT
TYPE
CONTROL PRESSURE RANGES
Y291AL0.5 to 1.5-inches w.c. / 1 to 4 mbar
1 to 2.5-inches w.c. / 2 to 6 mbar
2 to 7-inches w.c. / 5 to 17 mbar
4 to 14-inches w.c. / 10 to 35 mbar
Y291A
12 to 28-inches w.c. / 30 to 70 mbar
1.0 to 2.5 psig / 0.07 to 0.17 bar
2.5 to 4.5 psig / 0.17 to 0.31 bar
4.5 to 7 psig / 0.31 to 0.48 bar
1. Spring ranges based on pilot being installed with the spring case pointed down.
2. Do not use Fluorocarbon (FKM) diaphragm with this spring at diaphragm temperatures lower than 60°F / 16°C.
3. When using a Fluorocarbon (FKM) diaphragm, the minimum outlet pressure is 2-inches w.c. / 5 mbar.
4. When using a Fluorocarbon (FKM) diaphragm, the minimum outlet pressure is 2.5-inches w.c. / 6 mbar.
Standard Linear CageDrilled Hole Whisper Trim Cage
C
v
Line Size Equals Body Size Piping
C
C1Km
57660716.717.634.5
0.70
PIPING STYLE
2:1 Line Size to Body Size Piping
C1Km
52955715.616.434.0
0.70
g
C
g
C
v
C
v
C
K
1
m
0.80
C
K
1
m
0.80
Table 6. Flow Rate Conversions (Gas Flow Required to Displace Blanketing Gas with Pump-in of Liquid)
MULTIPLY MAXIMUM PUMP RATE INBYTO OBTAIN
U.S. GPM
U.S. GPH
Barrels/hour
Barrels/day
1. For liquids with a ash point below 100°F / 38°C or normal boiling point below 300°F / 149°C, multiply the above calculated outbreathing requirement by 2.0.
2. To convert to Nm3/h, multiply SCFH by 0.0268.
Note
The Type 1290 Vapor Recovery Regulator
is not intended to be used as an ASME
certied relief device for overpressure
protection. It is to be used as part of
the gas blanketing system to control the
outow of blanketing gas under normal
conditions and to collect vessel vapors
for the vapor recovery system. You
should provide alternate methods of
emergency overpressure protection.
The Type 1290 vapor recovery regulator responds to
any changes in the blanket gas pressure and throttles
open or closed to control the ow of the blanket gas
out of the vessel. A vacuum source on the outlet of
the regulator is usually necessary to ensure ow of low
pressure blanket gas out of the vessel into a vapor
8.021
0.1337
5.615
0.2340
SCFH air required
recovery system. The higher the vacuum pressure of
the vacuum source, the higher the ow capacity of the
vapor recovery regulator.
The pressure of the blanket gas registers under
the diaphragm of the pilot. A Type 95H regulator
provides a constant loading pressure source to the
Type 1098-EGR main valve actuator. When the pilot
is closed, the loading pressure lls both sides of the
Type 1098 actuator through a xed restriction.
The Type 1098-EGR main valve spring keeps the
main valve plug tightly shut off. When the vessel
blanket gas pressure reaches the setting of the
pilot spring, the pilot diaphragm moves, opening
the pilot valve disk and exhausting some of the
Type 1098-EGR’s actuator loading pressure through
the pilot orice. This typically happens when the vessel
is being lled with liquid.
(2)
5
Bulletin 74.2:1290
Table 7. Gas Flow Required for Thermal Heating (Outbreathing) per API 2000 (Interpolate for intermediate sizes)
VESSEL CAPACITYSCFH / Nm3/h AIR FLOW RATE REQUIRED
The small xed restriction maintains a higher loading
pressure on the bottom of the Type 1098 actuator. The
pressure differential across the main valve diaphragm
moves the diaphragm upward causing the main valve
to open which allows the blanket gas to ow out to
the vapor recovery system vacuum source, hence
controlling the vessel blanket pressure.
When the vessel blanket gas pressure begins to stabilize,
the pilot spring throttles the pilot disk closed. This allows
the loading pressure source to ll both sides of the
Type 1098 actuator through the xed restriction. This
equalizes the pressure acting on the diaphragm, thus
allowing the main valve spring to close the main valve plug.
Sizing Blanketing Systems
When sizing a gas vapor recovery regulator system, you
must consider the volume of blanketing gas that must be
displaced from the vessel when either lling the vessel
with liquid (pump-in) or the expansion of vapors inside
the vessel during atmospheric thermal heating.
Using the established procedures from American
Petroleum Institute Standard 2000 (API 2000), determine
the ow rate for outbreathing.
1. Determine the ow rate of blanketing gas
displaced when liquid is being pumped into the
vessel (see Table 6).
2. Determine the gas ow rate due to outbreathing
caused by atmospheric thermal heating (see Table 7).
3. Add the requirements of 1 and 2 and select a vapor
recovery regulator size based on total capacity
required from Table 4.
Sample Sizing Problem for Vapor
Recovery Applications:
2. From Table 7 the desired air ow rate = 1000 SCFH /
26.8 Nm3/h air due to thermal heating.
3. Total required ow rate = 1000 SCFH air +
320 SCFH = 1320 SCFH / 35.4 Nm3/h air. This
converts to nitrogen requirements of 1340 SCFH /
35.9 Nm3/h.
Capacity Information
Table 4 gives typical nitrogen regulating capacities at
selected inlet pressures and outlet pressure settings.
Flows are in SCFH (at 60°F and 14.7 psia) and Nm3/h
1. Monel® is a mark owned by Special Metals Corporation. A+--Best possible selection
2. Hastelloy® C is a mark owned by Haynes International, Inc. A--Recommended
B--Minor to moderate effect. Proceed with caution.
C--Unsatisfactory
I.L.--Information lacking
I.L.
I.L.
C
C
C
C
A
A
A
A
A
A
C
C
A
A
C
C
A
C
C
C
C
C
B
B
A
A
C
C
C
C
A
A
B
B
A
A
C
C
A
A
B
B
C
C
A
A
C
C
C
C
C
C
C
A
A
C
C
B
B
C
C
A
A
A
A
B
B
C
B
B
B
B
A
A
A
A
C
C
CF8M or 316
Stainless Steel
Stainless Steel
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
®(1)
Steel
Monel
416 Stainless
C
B
C
A
A
A
A
A
A
A
C
B
A
A
C
B
C
C
C
A
B
C
B
A
A
A
A
A
B
A
A
A
C
A
A
A
A
A
B
B
C
A
A
A
C
A
C
C
C
C
C
A
B
B
A
B
A
C
A
A
B
A
A
A
A
A
A
A
C
A
I.L.
A
I.L.
A
A
A
A
A
C
C
Fluid
Hastelloy
A
Hydrochloric Acid (Air Free)
A
Hydrogen
A
Hydrogen Peroxide
A
Hydrogen Sulde (Liquid)
A
Magnesium Hydroxide
A
Methanol
A
Methyl Ethyl Ketone
A
Natural Gas
A
Nitric Acid
A
Petroleum Oils (Rened)
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
- - - -
Cast or
Carbon Steel
C
C
A
A
I.L.
A
C
C
A
A
A
A
A
A
A
A
C
C
A
A
C
C
C
C
B
B
B
B
A
A
C
C
A
A
A
A
C
C
A
A
A
A
A
C
A
A
A
A
A
A
C
C
C
C
C
C
B
B
B
C
A
A
B
B
C
C
C
C
-
-
-
-
-
-
-
-
-
-
-
-
Material
302 or 304
Ductile Iron
Stainless Steel
C
A
A
A
A
A
A
A
A
A
A
B
A
A
A
A
B
A
B
A
A
A
A
A
A
C
C
B
B
A
A
B
C
A
-
-
-
-
-
-
Steel
CF8M or 316
416 Stainless
Stainless Steel
C
C
A
A
A
B
A
C
A
A
A
A
A
A
A
A
B
C
A
A
A
C
A
C
A
C
B
B
A
A
A
B
A
A
A
B
B
B
A
A
A
B
A
B
A
A
A
B
A
B
C
C
C
C
B
C
A
B
A
B
A
B
B
C
C
C
A
B
-
-
-
-
-
-
-
-
-
-
-
-
®(1)
Monel
C
A
A
C
A
A
A
A
C
A
B
C
B
A
A
C
A
A
A
A
A
B
A
A
A
C
B
C
A
A
A
A
C
A
-
-
-
-
-
-
(2)
C
®
Hastelloy
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
-
-
-
-
-
-
- continued -
(at 0°C and 1.01325 bar) of 0.97 specic gravity
nitrogen. For gases of other specic gravities, multiply
the given capacity of nitrogen by 0.985, and divide by
the square root of the appropriate specic gravity of
the gas required. To determine regulating capacities
at pressure settings not given or to determine
wide-open ow capacities, use the following formula:
Q= 520 3417 ∆P
GT C1 P
CgP1Sin
Deg
1
where:
C
= gas sizing coefcient from Table 5
g
C
= Cg/Cv or 35 from Table 5
1
G = gas specic gravity (air = 1.0)
P
= absolute inlet pressure, psia (add 14.7 psi
1
to gauge inlet pressure to obtain absolute
inlet pressure)
Water (Ambient)
Water (at 200°F / 93°C)
Water (Sea)
A+--Best possible selection
A--Recommended
B--Minor to moderate effect. Proceed with caution.
Neoprene (CR)Nitrile (NBR)
A+
A+
A+
FLUID INFORMATION
Material
Fluorocarbon
(FKM)
C
B
A
A
B
C
A
B
A
B
C
C
C
C
C
A
B
A
B
A
A
B
C
A
A
B
C
A
B
A
B
A
B
C
A
C
A+
A+
A+
A+
B
C
A
A
C
C
C
A
C
A
C
C
C
B
C
A
A
A
C
A
A
C
C
A
B
C
C
A
A
A
C
C
C
A
B
C--Unsatisfactory
I.L.--Information lacking
B
C
B
C
C
C
A
B
B
A
A
A
A
A
A+
C
A
A+
B
C
B
A
A
C
C
A
A
C
A
A
A
A
A
A
A
A
A
A
B
Peruorelastomer
(FFKM)
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Ethylenepropylene
(EPDM)
A
A
A
A
A
B
C
A
C
C
C
C
C
C
C
B
A
C
B
A
A
C
A
A
A
I.L.
C
C
C
C
A
C
C
A
A
B
B
A
A
Installation
Install the regulator using a straight run of pipe the
same size or larger than the regulator body. Flow
through the regulator body is indicated by the ow
arrow cast, stamped, or riveted on the body. If
a block valve is required, install a full ow valve
between the regulator and the blanketed vessel.
For proper operation at low setpoint ranges, the
regulators should be installed with the pilot spring
case barrel pointed down.
8
Ordering information
Refer to the Specications section on page 2.
Carefully review the description of each specication
and specify the desired selection on the Ordering
Guide page wherever there is a choice to be made.
Bulletin 74.2:1290
1/2 NPT
CONTROL LINE
CONNECTION
TYPE Y602-1
VENT
TYPE Y291A PILOT
A/2
A
G
1/4 NPT GAUGE
TAP CONNECTION
D
EXHAUST LINE
11.56 /
294
(3/4 NPT)
16.06 /
408
Z
TRIM REMOVAL
CLEARANCE
SIZE 40
ACTUATOR
B2442-1
TYPE 95H
SUPPLY PRESSURE
CONNECTION
(1/4 NPT)
13.12 /
333
AR
ACTUATOR
CLEARANCE
REMOVAL
Inch /
mm
Figure 3. Type 1290 Dimensional Drawing
Table 9. Type 1290 Dimensions
DIMENSIONS
A
MAIN VALVE
BODY SIZE
NPT
CL125 FF
Cast Iron, or
CL150 RF
Steel or
Stainless
Steel
CL250 FF
Cast Iron, or
CL300 RF
Steel
or Stainless
Steel
CL600 RF
Steel or
Stainless
Steel
DG
Cast Iron
NPSDNInch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
Lower Diaphragm Case Material (Select One)Steel***
Stainless Steel**
Bonnet Material (Select One)
Steel***
Stainless Steel**
O-ring Material (Select One)Nitrile (NBR)***
Fluorocarbon (FKM)**
Ethylenepropylene (EPDM)**
Diaphragm Material (Select One)
Nitrile (NBR)***
Fluorocarbon (FKM)**
Ethylenepropylene (EPDM)**
Type 95H Supply Pressure Regulator
Body Material (Select One)Cast Iron***
Steel***
Stainless Steel***
Spring Case Material (Select One)Cast Iron***
Steel***
Stainless Steel***
Valve Plug Material (Select One)416 Stainless Steel with Nitrile (NBR)***
416 Stainless Steel with Fluorocarbon (FKM)***
316 Stainless Steel with Neoprene (CR) (NACE)**
316 Stainless Steel with Fluorocarbon (FKM)**
1. Inconel® is a mark owned by Special Metals Corporation.
10
Ordering Guide (continued)
Bulletin 74.2:1290
Type 95H (continued)
Outlet Pressure Range (Select One)
15 to 30 psig / 1.0 to 2.1 bar, Yellow***
Diaphragm Material (Select One)Neoprene (CR)***
Fluorocarbon (FKM)**
Type Y291A or Y291AL Pilot
Body, Spring Case Assembly, and Diaphragm
Casing Material (Select One)Ductile Iron***
Stainless Steel***
Control Pressure Range (Select One)
Type Y291AL
0.5 to 1.5-inches w.c. / 1 to 4 mbar, Black***
Type Y291A
1.0 to 2.5-inches w.c. / 2 to 6 mbar, Orange***
2 to 7-inches w.c. / 5 to 17 mbar, Red***
4 to 14-inches w.c. / 10 to 35 mbar, Unpainted***
12 to 28-inches w.c. / 30 to 70 mbar, Yellow***
1 to 2.5 psig / 0.07 to 0.17 bar, Green***
2.5 to 4.5 psig / 0.17 to 0.31 bar, Light Blue***
4.5 to 7 psig / 0.31 to 0.48 bar, Black***
Diaphragm Material (Select One)
Nitrile (NBR)***
Fluorocarbon (FKM)**
Nitrile (NBR) with Polytetrauoroethylene (PTFE)
diaphragm protector**
O-ring and Seal Material (Select One)
Nitrile (NBR)***
Fluorocarbon (FKM)**
Ethylenepropylene (EPDM)**
Peruoroelastomer (FFKM)*
Regulators Quick Order Guide
* * *Readily Available for Shipment
* *Allow Additional Time for Shipment
Special Order, Constructed from Non-Stocked Parts.
*
Consult Your local Sales Ofce for Availability.
Availability of the product being ordered is determined by the component with the
longest shipping time for the requested construction.
Type Y291A or Y291AL Pilot (continued)
Closing Cap Material (Select One)
Type Y291AL
Zinc
Type Y291A
Plastic***
Steel**
Stainless Steel**
Vent Assembly (Select One)
Spring Case Up (Type Y602-11)***
Spring Case Down (Type Y602-1)***
Parts Kits
Replacement Parts Kit (Optional)
Yes, send one replacement parts kit to match this
order for each unit.
Quick-Change Trim Package (Optional)
Yes, send one main valve Quick-Change Trim
Package to match this order.
Wireless Position Monitor Mounting Kit (Optional)
Yes, send one mounting kit for mounting the
Topworx™ 4310 or the Fisher® 4320 wireless
position monitor.
Specication Worksheet
Application Specications:
Tank Size
Pump In Rate
Pump Out Rate
Blanketing Gas (Type and Specic Gravity)
Pressure Requirements (Please Designate Units):
Maximum Inlet Pressure (P
Minimum Inlet Pressure (P
Control Pressure Setting (P2)
Maximum Flow (Q
Is a vapor recovery regulator required?
Special Material Requirements:
Stainless SteelHastelloy® C
Other Requirements:
max
)
)
1max
)
1min
0.5-inch w.c. / 1 mbar
2-inches w.c. / 5 mbar
Ductile Iron
YesNo
Steel
Other
11
Bulletin 74.2:1290
Industrial Regulators
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872, USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Pacic
Shanghai 201206, China
Tel: +86 21 2892 9000
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
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 specications 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 75069-1872, USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Pacic
Singapore 128461, Singapore
Tel: +65 6770 8337
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28008, France
Tel: +33 2 37 33 47 00
TESCOM
Emerson Process Management
Tescom Corporation
USA - Headquarters
Elk River, Minnesota 55330-2445, USA