Fisher 1301F - Specifications; Available Configurations; Body Size and End Connection Style; Maximum Allowable Inlet Pressure

Types 1301F and 1301G
2
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 orice 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 orice. This allows
ow through the body to the downstream system.
As the downstream pressure reach its setting, it started
to overcome the spring force which is sense by the
diaphragm, moving the yoke and disk assembly up and
near its orice, restricting the ow across the regulator.
Available Congurations
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
NPS 1/4, NPT (one inlet and two outlet
connections), CL300 RF, CL600 RF, and
CL1500 RF; or PN 25 RF (all anges are
125 RMS)
Maximum Allowable Inlet Pressure
(1)
Air and Gas: 6000 psig (414 bar)
Liquid:
Polytetrauoroethylene (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 Coefcients for Relief Valve Sizing
C
g
: 5.0
C
v
: 0.13
Specications
C
1
: 38.5
IEC Sizing Coefcients
X
T
: 0.938
F
D
: 0.50
F
L
: 0.85
Recovery Coefcient
K
m
: 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)
Pressure Registration
Internal
Orice 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.