Products > Direct-Operated Regulators > Pressure Regulators

MODEL	TYPICAL APPLICATIONS	SPECIFICATIONS
O Series	The “O” Series Pressure Regulating Valves are used for reducing pressure in steam, air and water systems. Commonly used in heating and other process applications.CATALOG SPEC SHEET(S)	Model: O Series Service: Steam, Air, Water & Other Liquids Body Material: Cast Iron Max Capacity (2" Size, Steam): 2,141 lbs/hr Max Inlet Pressure: 250 PSIG Max Diff. Pressure: 125 PSIG Sizes: 3/8" - 2" Connections: NPT
B Series	The B Series Pressure Regulating Valves are used for reducing pressure in air and water systems. These regulators are commonly found in industrial plants, apartment buildings, water supply systems, schools and underground water distribution systems.CATALOG SPEC SHEET(S)	Model: B Series Service: Water, Air, Oil, Other Gases & Liquids Body Material: Bronze (1 1/2" - 2 1/2"), Cast Iron (3" & 4") Max Capacity (4" Size, Water): 912 GPM Max Inlet Pressure: 250 PSIG Max Diff. Pressure: 125 PSIG Sizes: 1/2" - 4" Connections: NPT, 125# FLG, 250# FLG
455 Series	The 455 Series are Balanced, Externally-Sensed Pressure Regulating Valves that are used for reducing pressure in steam, air and water systems. Commonly used in heating and other process applications. Externally-sensed regulators are often more accurate than internally-sensed regulators because the sensing line is connected close to the process it is intending to control and is far enough away from the outlet of the regulator to not be affected by turbulence.CATALOG SPEC SHEET(S)	Model: 455 Series Service: Steam, Air, Water & Other Gases Body Material: Bronze ( 1/2" - 1 1/2"), Cast Iron (2" - 4") Max Capacity (4" Size, Steam): 33,040 lbs/hr Max Inlet Pressure: 250 PSIG Max Diff. Pressure: 125 PSIG Sizes: 1/2" - 4" Connections: NPT, 125# FLG, 250# FLG
402 Series	The 402 Series Internally Pilot-Operated Pressure Regulating Valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate downstream pressure regardless of fluctuations in supply pressure or usage. These regulators can be supplied with an internal sensing option eliminating the external sensing line.CATALOG SPEC SHEET(S)	Model: 402 Series Service: Steam & Air Body Material: Ductile Iron Max Capacity (4" Size, Steam): 46,256 lbs/hr Max Inlet Pressure: 250 PSIG Max Diff. Pressure: 150 PSIG Sizes: 1/2" - 4" Connections: NPT, 150# FLG, 300# FLG
403 Series	The 403 Series Internally Pilot-Operated Pressure Regulating Valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate downstream pressure regardless of fluctuations in supply pressure or usage. These regulators can be supplied with an internal sensing option eliminating the external sensing line.CATALOG SPEC SHEET(S)	Model: 403 Series Service: Steam & Air Body Material: Ductile Iron Max Capacity (4" Size, Steam): 83,300 lbs/hr Max Inlet Pressure: 450 PSIG Max Diff. Pressure: 250 PSIG Sizes: 1/2" - 4" Connections: NPT, 150# FLG, 300# FLG
Products > Direct-Operated Regulators > Pressure Regulators