About Pressure-Relief Valves
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Corrosion-Resistant 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: -40° to 400° F
For corrosion resistance in wet conditions and harsh environments, these valves have a 303 stainless steel body. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Valves have a vented relief port to exhaust discharge directly.
For technical drawings and 3-D models, click on a part number.
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: See table
Unlike valves that release discharge directly, these have a threaded relief port to direct discharge away from your work environment. They spring fully open at the set pressure and remain fully open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Body is bronze for durability and a long service life.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Remote-Discharge ASME-Code
Fast-Acting Pressure-Relief Valves for Air and Inert Gas
- Specifications Met: ASME BPVC.VIII
- Temperature Range: -10° to 400° F
With a 316 stainless steel body for exceptional corrosion resistance, these valves are often used in wet conditions and harsh environments. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Attach a drain line to the threaded relief port for remote discharge.
To Order: Please specify medium (air or inert gas) and set pressure in 1 psi increments (from 150 to 2,700 psi for valves with 1/2 or 1 inlet pipe size, or 150 to 2,269 psi for valves with 3/4 inlet pipe size).
Inlet | Relief Port | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Location | Maximum Pressure, psi | Pipe Size | Location | Shape | Overall Ht. | Valve Type | Choose a Medium | Each | |
NPT Female Inlet and NPT Female Relief Port | ||||||||||
316 Stainless Steel Body—Fluoroelastomer Seal | ||||||||||
| 1/2 | Bottom | 3,300 | 3/4 | Side | 90° Elbow | 9" | Pop Safety | 0000000 | 000000000 | |
NPT Male Inlet and NPT Female Relief Port | ||||||||||
316 Stainless Steel Body—Fluoroelastomer Seal | ||||||||||
| 3/4 | Bottom | 3,300 | 3/4 | Side | 90° Elbow | 9" | Pop Safety | 0000000 | 00000000 | |
| 1 | Bottom | 3,300 | 1 | Side | 90° Elbow | 9" | Pop Safety | 0000000 | 00000000 | |
ASME-Code Fast-Acting Pressure-Relief Valves for Water
- For Use With: Water
- Temperature Range: -60° to 406° F
These valves meet ASME Code Section VIII for use with water pressure vessels. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All have a threaded relief port that can be attached to a drain line for remote discharge. Body is bronze for durability and a long service life.
For technical drawings and 3-D models, click on a part number.
Inlet | Relief Port | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Location | Pipe Size | Location | Overall Ht. | Valve Type | Specifications Met | Choose a Set Pressure, psi | Each | |
NPT Male Inlet and NPT Female Relief Port | |||||||||
Bronze Body—316 Stainless Steel Seal | |||||||||
| 1/2 | Bottom | 3/4 | Side | 7 1/2" | Pop Safety | ASME BPVC.VIII | 0000000 | 0000000 | |
| 3/4 | Bottom | 3/4 | Side | 7 1/2" | Pop Safety | ASME BPVC.VIII | 0000000 | 000000 | |
| 1 | Bottom | 1 1/4 | Side | 9" | Pop Safety | ASME BPVC.VIII | 0000000 | 000000 | |
| 1 1/2 | Bottom | 2 | Side | 13 1/4" | Pop Safety | ASME BPVC.VIII | 0000000 | 000000 | |