Products > Direct-Operated Regulators > Back Pressure-Relief Valves

MODEL
TYPICAL APPLICATIONS
SPECIFICATIONS
     

R Series

The R Series Back Pressure-Relief Valves are used in the following applications: Water pump bypass for irrigation, sprinkler systems on golf courses, fountains and fire protection systems Fuel oil pump bypass on commercial systems or large residential systems. CATALOG SPEC SHEET(S) Model: R Series
Service: Liquids
Body Material: Bronze
Seat Material: Bronze
Valve Material: Stainless Steel (1/2" - 1 1/2"), Bronze (2" - 3")
Max Capacity (@ 20% Over Set Pressure, 3" Size): 16.0 GPM
Max Inlet Pressure: 300 PSIG
Sizes: 1/2" - 3"
Connections: NPT
     

10691 Series

The 10691 Series Back Pressure-Relief Valves are used in the following applications: Water pump bypass for irrigation, sprinkler systems on golf courses, fountains and fire protection systems Fuel oil pump bypass on commercial systems or large residential systems.

Note: 10691 Series has EPDM seat for tight shutoff. CATALOG SPEC SHEET(S)
Model: 10691 Series
Service: Liquids
Body Material: Bronze
Seat Material: EPDM
Valve Material: Stainless Steel (1/2" - 1 1/2"), Bronze (2" - 3")
Max Capacity (@ 20% Over Set Pressure, 3" Size): 16.0 GPM
Max Inlet Pressure: 300 PSIG
Sizes: 1/2" - 1"
Connections: NPT
     

3040 Series

The 3040 Series Back Pressure-Relief Valves relieve upstream pressure in a variety of processes. Automatically maintains desired maximum pressure in a vessel or system by relieving excess pressure into lower pressure return line or to atmosphere. Ideally suited for use as pump bypass control valve by maintaining constant pump discharge pressures. Used as a continuously operating valve for protection against overpressure conditions.CATALOG SPEC SHEET(S) Model: 3040 Series
Service: Water, Oil, Other Liquids, Air
Body Material: Bronze (1/2" - 1 1/2" NPT), Cast Iron (2" NPT & FLG)
Disc Material: Buna-N/Teflon (200°F Max)
Diaphragm Material: Neoprene/Nylon (200°F Max)
Valve Material: Stainless Steel (1/2" - 1 1/2"), Bronze (2" - 3")
Max Capacity (@ 20% Over Set Pressure, 2" Size): 278 GPM
Max Inlet Pressure: 250 PSIG
Sizes: 1/2" - 2"
Connections: NPT, 125# FLG, 250# FLG
     
     

Products > Direct-Operated Regulators > Back Pressure-Relief Valves

 

 

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Product Catalog - Direct-Operated Pressure & Temperature Regulators

Back Pressure-Relief Valves

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Typical Applications for Temperature Regulators

Regulating Valve Applications