1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. When using a Type SA/2 pilot supply filter regulator, the differential pressure across the regulator must be at least 45 psid / 3.1 bar d for optimum regulator performance.
3. Types PRX and SA/2 Fluorocarbon (FKM) elastomer are limited to 0°F / -18°C.
4. At average ambient temperature.
Specifications
The Specifications section gives some general specifications for the Type FL regulators. The nameplates
give detailed information for a particular regulator as it comes from the factory.
Available Configuration
Type FL:
Pilot-operated pressure reducing
regulator from 14.5 to 1160 psig / 1.00 to 80.0 bar
outlet pressures
Body Size
Type FL:
NPS 1, 2, 3, 4, 6, 8 and 10 /
DN 25, 50, 80, 100, 150, 200 and 250
Type
FL with Type SRS Silencer (inlet x Outlet):
NPS 1 x 4, 2 x 6, 3 x 10, 4 x 10, 6 x 12 and 8 x 16 /
DN 25 x 100, 50 x 150, 80 x 250, 100 x 250,
150 x 300 and 200 x 400
Main Valve End Connection Style and
Pressure Ratings
(1)
CL300 RF:
740 psig / 51.0 bar
(4)
CL600 RF:
1480 psig / 102 bar
(4)
Maximum inlet and Outlet (Casing) Pressure
(1)
1480 psig / 102 bar
(4)
Miminum Operating Differential Pressure
(2)
Start Open:
NPS 1 to 4 / DN 25 to 100:
7.3 psid / 0.50 bar d
NPS 6 and 8 / DN 150 and 200:
3 psid / 0.21 bar d
NPS 10 / DN 250
: 2.9 psid / 0.2 bar d
Full Open:
NPS 1 to 4 / DN 25 to 100:
14.5 psid / 1.00 bar d
NPS 6 and 8 / DN 150 and 200:
7.3 psid / 0.50 bar d
NPS 10 / DN 250:
8.7 psid / 0.6 bar d
Outlet Pressure Ranges
See Table 1
Pressure Registration
External
Process Temperature Capabilities
(1)(3)
nitrile (nBR), Fluorocarbon (FKM) or
Polyurethane (PU) Disk
ANSI/FCI 70-3 Class VIII:
-4 to 140°F / -20 to 60°C
nitrile (nBR) or Polyurethane (PU) Disk
ANSI/FCI 70-3 Class VI:
-20 to 140°F / -29 to 60°C
approximate Weights (including Pilot)
Types FL-SR and FL-SRii
NPS 1 / DN 25:
68 lbs / 31 kg
NPS 2 / DN 50:
132 lbs / 60 kg
NPS 3 / DN 80:
326 lbs / 148 kg
NPS 4 / DN 100:
443 lbs / 201 kg
NPS 6 / DN 150:
1058 lbs / 480 kg
NPS 8 / DN 200:
1367 lbs / 620 kg
NPS 10 / DN 250:
2623 lbs / 1190 kg
Types FL-SR/SRS and FL-SRii/SRS
NPS 1 x 4 / DN 25 x 100:
99 lbs / 45 kg
NPS 2 x 6 / DN 50 x 150:
192 lbs / 87 kg
NPS 3 x 10 / DN 80 x 250:
514 lbs / 233 kg
NPS 4 x 10 / DN 100 x 250:
631 lbs / 286 kg
NPS 6 x 12 / DN 150 x 300:
1367 lbs / 620 kg
NPS 8 x 16 / DN 200 x 400:
1984 lbs / 900 kg
Table 1.
Outlet Pressure Ranges
TYPE
OUTLET PRESSURE
RangE
aC
(aCCURaCY CLaSS)
PiLOT COnTROL SPRing inFORMaTiOn
Spring Color
Part number
Wire Diameter
Free Length
psig
bar
in.
cm
in.
cm
PRX/120
PRX/125
PRX/131
14.5 to 26
23 to 44
41 to 80
73 to 123
1.00 to 1.8
1.6 to 3.0
2.8 to 5.5
5.0 to 8.5
2.5%
2.5%
2.5%
2.5%
Yellow
Green
Blue
Black
M0255240X12
M0255230X12
M0255180X12
M0255220X12
0.110
0.126
0.138
0.157
0.28
0.32
0.35
0.40
2.16
5.49
116 to 210
203 to 334
319 to 435
8.0 to 14.5
14.0 to 23.0
22.0 to 30.0
1%
1%
1%
Silver
Gold
Aluminum
M0255210X12
M0255200X12
M0255860X12
0.177
0.197
0.236
0.45
0.50
0.60
2.16
2.00
2.00
5.49
5.10
5.10
PRX/120-AP
PRX/125-AP
435 to 1160 30.0 to 80.0
1%
Clear
M0273790X12
0.335
0.85
3.93
10.0
2
Type FL
North America
Only