Assembly | High Pressure Gas Regulator
Table E. Materials of Construction (see Figure 1.)
Orifice, Closing Cap and Valve Stem
Diaphragm Casing, and Spring Case
Diaphragm and Disk
Relief Valve Spring
Control Spring
Lever
Body
Cast Iron, Ductile Iron (-SS version)
Plated Steel
Stainless Steel
Aluminum Stainless Steel
Nitrile (NBR)
Aluminum
Figure 1. Assembly Diagram
Closing Cap
Control Spring
Relief Valve Spring
Body
Spring Case
Orifi ce
Valve Stem
Diaphragm and Disk
Diaphragm Casing
Lever
Table F. 7337A-3 Regulator and Slam-Shut Overpressure Shutoff (OPSO) Pressure Ranges
Control Spring
Slam-Shut Over Pressure Shut-off Device
Spring Range
Factory Setpoint
Regulator Designation
Spring Range
Factory Setpoint
7337A-3-GYS, 7337A-GYS-SS 7337A-3-GNS, 7337A-3-GNS-SS 7337A-3-BS, 7337A-3-BS-SS 7337A-3-2538, 7337A-3-2538-SS 7337A-3-LGY, 7337A-3-LGY-SS 7337A-3-LGN, 7337A-3-LGN-SS 7337A-3-LB, 7337A-3-LB-SS 7377A-3-2534, 7337A-3-2534-SS 7337A-3-LB1, 7337A-3-LGY1-SS 7337A-3-LGN1, 7337A-LGN1-SS 7377A-3-LB1, 7337A-3-LB1-SS 7377A-3-2510, 7337A-3-2510-SS
11"w.c. 1 psig 2 psig 5 psig 11"w.c. 1 psig 2 psig 5 psig 11"w.c. 1 psig 2 psig 5 psig
8-12"w.c. 14-30"w.c. 1.0-2.5 psig 2.5-5.5 psig 8-12"w.c. 14-30"w.c. 1.0-2.5 psig 2.5-5.5 psig 8-12"w.c. 14-30"w.c. 1.0-2.5 psig 2.5-5.5 psig
25"w.c. 2 psig 3.5 psig 7 psig 25"w.c. 2 psig 3.5 psig 7 psig 25"w.c.
16-44"w.c. 1.4-4.1 psig 2-7.3 psig 3.2-8.5 psig 16.44"w.c. 1.4-4.1 psig
2-7.3 psig
3.2-8.5 psig 16-44"w.c. 1.4-4.1 psig 2-7.3 psig 3.2-8.5 psig
2 psig
3.5 psig
7 psig
Bulletin 7337A-3 Page 5
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