Type FL
2
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Type PRX Fluorocarbon (FKM) elastomer is limited to 0°F / -18°C.
3. At average ambient temperature.
4. Meets or exceeds ANSI/FCI 70-3 Class VI/VII leakage limits at maximum operating differential pressure.
Specifications
The Specifications section gives some general specifications for the Type FL relief valve or backpressure regulator.
The nameplates give detailed information for a particular relief valve or backpressure regulator as it comes from
the factory.
Body Sizes
Type FL:
NPS 1, 2, 3, 4, 6, 8, and 10 /
DN 25, 50, 80, 100, 150, 200, and 250
Main Valve End Connection Style and
Pressure Ratings
(1)
CL300 RF:
740 psig / 51.0 bar
(3)
CL600 RF:
1480 psig / 102 bar
(3)
Maximum Inlet and Outlet (Casing) Pressure
(1)
1480 psig / 102 bar
(3)
Minimum Buildup Pressure (Refer to Table 2)
Set Pressure Ranges
See Table 2
Pilot Spring Case Vent Connection
1/4 NPT tapping in pilot body
Pressure Registration
External through upstream control line. Pilot
spring case connection / Pilot body “B” port vent
connection 1/4 NPT tapping.
Temperature Capabilities
(1)(2)
Nitrile (NBR) or Fluorocarbon (FKM) Disk:
-4 to 140°F / -20 to 60°C
Nitrile (NBR) Disk:
-20 to 140°F / -29 to 60°C
(4)
Approximate Weights (Including Pilot)
Type FL
NPS 1 / DN 25:
68 pounds / 31 kg
NPS 2 / DN 50:
132 pounds / 60 kg
NPS 3 / DN 80:
326 pounds / 148 kg
NPS 4 / DN 100:
443 pounds / 201 kg
NPS 6 / DN 150:
1058 pounds / 480 kg
NPS 8 / DN 200:
1367 pounds / 620 kg
NPS 10 / DN 250:
2623 pounds / 1190 kg
Table 1.
Pilot Set Pressure Control
PILOT TYPE
RELIEF SET
PRESSURE RANGE
PILOT CONTROL INFORMATION
Part Number
Color
Wire Diameter
Free Length
Maximum
Operating
Pressure
Maximum
Emergency
Pressure
psig
bar
Inch
mm
Inch
mm
psig
bar
psig
bar
PRX/182
29 to 116
2.0 to 8.0
GD25522X012
Black
0.157
3.99
2.16
54.9
609
42.0
1480
102
73 to 290
5.0 to 20.0
GD25520X012
Gold
0.197
5.00
2.01
51.1
217 to 609
15.0 to 42.0
GD25519X012
Red
0.236
5.99
2.01
51.1
PRX-AP/182
435 to 1160
30.0 to 80.0
GD27379X012
Clear
0.335
8.51
3.94
100
1160
80.0
1480
102
