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,
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 unquali ed
personnel may result in improper
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. Use quali ed
personnel when installing, operating,
and maintaining the 1301 Series highpressure 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
P1025
Figure 1. Type 1301F High-Pressure Regulator
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 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.
www.fisherregulators.com
D100341X012
Types 1301F and 1301G
Specications
Specications section lists the specications 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 Congurations
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 /
IEC Sizing Coefcients
X
: 0.938
T
FD: 0.50
FL: 0.85
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 anges 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:
Polytetrauoroethylene (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:
Polytetrauoroethylene (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 Coefcients for Relief Valve Sizing
Cg: 5.0
Cv: 0.13
Recovery Coefcient
Km: 0.72
Material Temperature Capabilities
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
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
Orice 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
C1: 38.5
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.
(1)
(2)
2
CONTROL SPRING
DISK HOLDER
Types 1301F and 1301G
DIAPHRAGM
SPARE DISK
BOTTOM CAP
M1015
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
VALVE DISK
VALVE SPRING
Figure 2. Type 1301F Operational Schematic
Table 1. Outlet Pressure Ranges
OUTLET PRESSURE
TYPE
psig bar Inch mm Inch mm
10 to 75 0.69 to 5.2 Blue 1D387227022 0.200 5.08
1301F
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.
RANGES
(1)
SPRING COLOR SPRING PART NUMBER
SPRING WIRE DIAMETER SPRING FREE LENGTH
1.69 42.950 to 150 3.4 to 10.3 Silver 1B788527022 0.225 5.72
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 orice and there is no
ow 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 orice. This allows
ow 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 orice, restricting ow across the regulator.
3