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- In this category:
- 3040 Series
- R-Series
- 10691 Series
Relief & Back Pressure Valves
3040 Series
Specifications
| Model | 3040 Series |
| Service | Water, Oil, other Liquids, Air |
| Sizes | 1/2’’, 3/4’’, 1’’, 1-1/4’’, 1-1/2’’, 2’’ |
| Connections | NPT, 125# FLG, 250# FLG |
| Body Material | 1/2’’ – 1-1/2’’ NPT, SS Body, SS Diaphragm Chamber
2’’ NPT, Cast Iron Body 2’’ FLG, Cast Iron Body |
| Seat Material | Stainless Steel |
| Disc Material | Viton – 300°F max |
| Diaphragm | Viton – 300°F max |
| Max. Inlet Pressure | 250 PSIG |
Contact Us for more information on this product and to see other sizes that fit unique applications.
Typical Applications
The 3040 Series Back Pressure 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 or for intermittent protection against over-pressure conditions.
Relief & Back Pressure Valves
R-Series
Specifications
| Model | R Series |
| Service | Liquids |
| Sizes | 1/2’’ – 3’’ |
| Connections | NPT |
| Body Material | Bronze |
| Seat Material | Bronze |
| Disc Material | Stainless Steel (1/2’’ – 1-1/2’’)
Bronze (2’’ – 3’’) |
| Max. Inlet Pressure | 300 PSIG |
Contact Us for more information on this product and to see other sizes that fit unique applications.
Typical Applications
The R-Series Back Pressure & Relief Valves relieve upstream pressure in a variety of processes. R-Series has a stainless steel disc. This valve 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 or for protection against intermittent over pressure conditions.
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.
Relief & Back Pressure Valves
10691 Series
Specifications
| Model | 10691 Series |
| Service | Liquids |
| Sizes | 1/2’’, 3/4’’, 1’’ |
| Connections | NPT |
| Body Material | Bronze |
| Seat Material | Bronze |
| Disc Material | EPDM*
Optional Viton or Teflon |
| Max. Inlet Pressure | 300 PSIG |
Contact Us for more information on this product and to see other sizes that fit unique applications.
Typical Applications
The 10691-Series Back Pressure & Relief Valves relieve upstream pressure in a variety of processes. 10691-Series has a soft elastomeric disc for tight shut-off. This valve 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 or for protection against intermittent over pressure conditions.
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.