DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Airflow Capacity Airflow Capacity |
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Set Pressure Set Pressure |
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About Pressure-Relief Valves
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Large-Diameter Remote-Discharge Fast-Acting
Pressure-Relief Valves for Air and Inert Gas
- For Use With: Air, Inert Gas
- Temperature Range: -20° to 406° F
Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Attach a drain line to the threaded relief port for remote discharge. Valves have a cast iron body to absorb vibration for reduced noise and wear in your pipeline.
For technical drawings and 3-D models, click on a part number.
Inlet | Relief Port | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Location | Maximum Pressure, psi | Pipe Size | Location | Temperature Range, ° F | Overall Ht. | Test Mechanism | Valve Type | Choose a Set Pressure, psi | Each | |
NPT Male Inlet and NPT Female Relief Port | |||||||||||
Cast Iron Body—Bronze Seal | |||||||||||
| 2 | Bottom | 60 | 2 | Side | -20° to 406° | 7" | T-Handle | Pop Safety | 0000000 | 0000000 | |
| 2 1/2 | Bottom | 60 | 2 1/2 | Side | -20° to 406° | 8" | T-Handle | Pop Safety | 0000000 | 000000 | |
| 3 | Bottom | 60 | 3 | Side | -20° to 406° | 9" | T-Handle | Pop Safety | 0000000 | 000000 | |
Large-Diameter Remote-Discharge ASME-Code
Fast-Acting Pressure-Relief Valves for Air and Inert Gas
- For Use With: Air, Inert Gas
- Specifications Met: ASME BPVC.VIII
- Temperature Range: -20° to 406° F
These valves meet ASME Code Section VIII for use with air and inert gas pressure vessels. Commonly used with high-volume blowers, compressors, and air-powered conveyors, they quickly relieve a large amount of air in systems with a pipe size of 2 or greater. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Attach a drain line to the threaded relief port for remote discharge. Valves have a cast iron body to absorb vibration for reduced noise and wear in your pipeline.
For technical drawings and 3-D models, click on a part number.
Inlet | Relief Port | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Location | Maximum Pressure, psi | Pipe Size | Location | Overall Ht. | Test Mechanism | Valve Type | Choose a Set Pressure, psi | Each | |
NPT Male Inlet and NPT Female Relief Port | ||||||||||
Cast Iron Body—Bronze Seal | ||||||||||
| 2 | Bottom | 60 | 2 | Side | 7" | T-Handle | Pop Safety | 0000000 | 0000000 | |
| 2 1/2 | Bottom | 60 | 2 1/2 | Side | 8" | T-Handle | Pop Safety | 0000000 | 000000 | |
| 3 | Bottom | 60 | 3 | Side | 9" | T-Handle | Pop Safety | 0000000 | 000000 | |