Instruction Manual
Form 1111
December 2013
Types 1301F and 1301G
1301 Series High-Pressure Regulators
!WARNING
Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion, fi re and/or chemical contamination causing property damage and personal injury or death.
Fisher® regulators must be installed, operated, and maintained in accordance with federal, state and local codes, rules and regulations, and Fisher instructions.
If the regulator vents gas or a leak develops in the system, service to the unit may be required. Failure to correct trouble could result in a hazardous condition.
Installation, operation, and maintenance procedures performed by unqualifi ed personnel may result in improper adjustment and unsafe operation. Either condition may result in equipment damage or personal injury. Use qualifi ed personnel when installing, operating, and maintaining the 1301 Series highpressure regulator.
P1025
Figure 1. Type 1301F High-Pressure Regulator
Introduction
Scope of the Manual
This Instruction Manual provides instructions for the installation, adjustment, maintenance, and parts ordering of the Types 1301F and 1301G high-pressure regulators.
Product Description
Types 1301F and 1301G regulators are direct-operated, high-pressure regulators, which can be used where high-pressure gas must be reduced for use as pilot
supply pressure in pilot-operated regulators or as loading pressure in pressure-loaded regulators.
Types 1301F and 1301G regulators can also be used in many other applications due to their rugged design as high-pressure reducing regulators for various fl uids such as air, gas, water, and other liquids.
The Type 1301F can handle outlet pressures from
10 to 225 psig / 0.69 to 15.5 bar in three ranges and the Type 1301G can handle outlet pressures from 200 to 500 psig / 13.8 to 34.5 bar in one range.
D100341X012
www.fisherregulators.com
Types 1301F and 1301G
Specifications
Specifications section lists the specifications for Types 1301F and 1301G high-pressure regulators. The maximum outlet pressure for a given regulator as it comes from the factory is stamped on the regulator nameplate.
Available Configurations
Type 1301F: Direct-operated, high-pressure reducing regulator for inlet pressures to 6000 psig / 414 bar and outlet pressure ranges from 10 to 225 psig / 0.69 to 15.5 bar in three ranges
Type 1301G: Direct-operated, high-pressure reducing regulator for inlet pressures to 6000 psig / 414 bar and an outlet pressure range of
200 to 500 psig / 13.8 to 34.5 bar
Body Size and End Connection Style
1/4 NPT (one inlet and two or three outlet connections), CL300 RF, CL600 RF, and CL1500 RF; or PN 25 RF (all flanges are 125 RMS)
Maximum Allowable Inlet Pressure(1)
Brass Body:
Air and Gas:
6000 psig / 414 bar at or below 200°F / 93°C and 1000 psig / 69.0 bar above 200°F / 93°C
Liquid:
Polytetrafluoroethylene (PTFE) Disk:
1000 psig / 69.0 bar
Nylon (PA) Disk:
Water: 1000 psig / 69.0 bar Other Liquids: 2000 psig / 138 bar
Stainless Body:
Air and Gas: 6000 psig / 414 bar
Liquid:
Polytetrafluoroethylene (PTFE) Disk:
1000 psig / 69.0 bar
Nylon (PA) Disk:
Water: 1000 psig / 69.0 bar Other Liquids: 2000 psig / 138 bar
Outlet Pressure Ranges
See Table 1
Maximum Emergency Outlet Pressure(1)
Type 1301F: 250 psig / 17.2 bar Type 1301G: 550 psig / 37.9 bar
Wide-Open Flow Coefficients for Relief Valve Sizing
Cg: 5.0 Cv: 0.13 C1: 38.5
IEC Sizing Coefficients
XT: 0.938
FD: 0.50
FL: 0.85
Recovery Coefficient
Km: 0.72
Material Temperature Capabilities(1)
Nylon (PA) Valve Disk and
Neoprene (CR) Gaskets:
-20 to 180°F / -29 to 82°C
PTFE Valve Disk and Fluorocarbon (FKM)
Gaskets: -20 to 400°F / -29 to 204°C(2)
PTFE Valve Disk and Ethylenepropylene (EPDM)
Gaskets: -40 to 300°F / -40 to 149°C
Low Temperature Service
Service to -65°F / -54°C is available with low temperature bolting and special low temperature
Nitrile (NBR) O-rings to replace the gaskets.
Service to -80°F / -62°C is available with low temperature bolting and special low temperature Fluorosilicone (FVQM) O-rings to replace
the gaskets.
Pressure Registration
Internal
Orifice Size
5/64 inch / 2.0 mm
Spring Case Vents
Type 1301F Brass Spring Case:
Four 5/32-inch / 4.0 mm holes
Type 1301F Stainless Steel Spring Case:
One 1/4 NPT connection
Type 1301G Spring Case:
One 1/8 NPT connection with screen
Approximate Weight
8 pounds / 4 kg
1.The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2.Fluorocarbon (FKM) is limited to 180°F / 82°C hot water.
2
Types 1301F and 1301G
CONTROL SPRING
DIAPHRAGM
DISK HOLDER |
SPARE DISK |
VALVE DISK |
|
|
BOTTOM CAP |
VALVE SPRING |
M1015
Inlet pressure
Outlet pressure 
atmospheric pressure
Figure 2. Type 1301F Operational Schematic
Table 1. Outlet Pressure Ranges
|
OUTLET PRESSURE |
|
|
SPRING WIRE DIAMETER |
SPRING FREE LENGTH |
|||
TYPE |
RANGES(1) |
SPRING COLOR |
SPRING PART NUMBER |
|||||
|
psig |
bar |
|
|
Inch |
mm |
Inch |
mm |
|
10 to 75 |
0.69 to 5.2 |
Blue |
1D387227022 |
0.200 |
5.08 |
|
|
|
|
|
|
|
|
|
|
|
1301F |
50 to 150 |
3.4 to 10.3 |
Silver |
1B788527022 |
0.225 |
5.72 |
1.69 |
42.9 |
|
|
|
|
|
|
|
|
|
|
100 to 225 |
6.9 to 15.5 |
Red |
1D465127142 |
0.243 |
6.17 |
|
|
|
|
|
|
|
|
|
|
|
1301G |
200 to 500 |
13.8 to 34.5 |
Silver |
1K156027142 |
0.331 |
8.41 |
0.88 |
22.4 |
|
|
|
|
|
|
|
|
|
1. All springs can be backed off to 0 psig / 0 bar.
Principle of Operation
The 1301 Series regulators are direct-operated.
Downstream pressure is registered internally through the body to the underside of the diaphragm. When downstream pressure is at or above set pressure, the disk is held against the orifice and there is no flow through the regulator. When demand increases, downstream pressure decreases slightly allowing the
regulator spring to extend, moving the yoke and disk assembly down and away from the orifice. This allows flow through the body to the downstream system. As the downstream pressure reaches its setpoint, it starts to overcome the spring force, which is sensed by the diaphragm, moving the yoke and disk assembly up near its orifice, restricting flow across the regulator.
3
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