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Body Material Body Material |
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Maximum Inlet Pressure Maximum Inlet Pressure |
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Valve Function Valve Function |
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Maximum Temperature Maximum Temperature |
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Valve Type Valve Type |
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For Use With For Use With | Show |
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For Use With For Use With | Hide |
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Warning: Products have one, but not necessarily all, of the selected characteristics.
Set Pressure Set Pressure |
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Inlet Thread Type Inlet Thread Type |
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Set Pressure Configuration Set Pressure Configuration |
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Seal Material Seal Material |
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Shape Shape |
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 | 90° Elbow |
Relief Port Connection Type Relief Port Connection Type |
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Inlet Gender Inlet Gender |
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Inlet Location Inlet Location |
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Inlet Connection Type Inlet Connection Type |
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 | Pipe |
Minimum Temperature Minimum Temperature |
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Relief Port Thread Type Relief Port Thread Type |
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Inlet Connection Style Inlet Connection Style |
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| Threaded |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Pressure-Relief Valves
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Adjustable Pressure-Relief Valves for Chemicals
- For Use With: Aluminum Chloride, Boric Acid
- Temperature Range: 40° to 140° F
Often used with catalysts, pH buffers, and electroplating solutions, these valves have a PVC body and an EPDM seal for excellent chemical resistance. They begin opening at the set pressure and fully open at about 10% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Adjust the set pressure within the range. Valves have a port for attaching a pressure gauge.
For technical drawings and 3-D models, click on a part number.
Inlet | Relief Port | Set Pressure | ||||||||
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| Pipe Size  | Location | Maximum Pressure, psi | Pipe Size | Location | Range, psi | Adjustment Method | Overall Ht. | Gauge Port Pipe Size | Each | |
NPT Female Inlet and Relief Port | ||||||||||
Dark Gray PVC Body—EPDM Seal | ||||||||||
| 1/2 | Bottom | 150 | 1/2 | Side | 5 to 75 | External Adjustment Screw | 6 3/4" | 1/4 | 0000000 | 0000000 |
| 3/4 | Bottom | 150 | 3/4 | Side | 5 to 75 | External Adjustment Screw | 6 7/8" | 1/4 | 0000000 | 000000 |
| 1 | Bottom | 150 | 1 | Side | 5 to 75 | External Adjustment Screw | 8 3/4" | 1/4 | 0000000 | 000000 |
| 1 1/2 | Bottom | 150 | 1 1/2 | Side | 5 to 75 | External Adjustment Screw | 13 1/4" | 1/4 | 0000000 | 000000 |
| 2 | Bottom | 150 | 2 | Side | 5 to 75 | External Adjustment Screw | 15 1/2" | 1/4 | 0000000 | 00000000 |