Watts BP30-075175 1/2" Relief Valve, Bronze, NPT

The Watts BP30-075175 is a 1/2" calibrated adjustable pressure relief valve for pump bypass pressure control service, field-adjustable over 75-175 psi. It features a bronze body. Rated to 175 psi and up to 180°F.

This 1/2 inch bypass control relief valve is used in commercial, residential and industrial applications to regulate liquid pressure as supplied by a positive pressure pump. It is a diaphragm-operated type valve that protects equipment by opening at an adjustable range of 75-175 psi (5.2 to 12.1 bar) to allow excess volume to be bypassed back to the source. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female outlet, sensitive rubber diaphragm, Buna-N disc, spring and adjustment handle, and a tee handle.

Features

• Spring loaded
• Soft seated
• Bronze body
• Automatic reseating
• Includes: Bypass

Common Questions

What pressure does this relieve at?

This is a calibrated valve — you set it. It adjusts over 75-175 psi, so it has no factory set point. Set it below the working pressure rating of the equipment you are protecting, and re-check the setting after installation.

Can I use this on potable water?

No. This model is not certified lead-free, so it cannot be installed in a potable (drinking) water line under the NSF/ANSI 372 weighted-average lead rule. Use it on non-potable service, or order the "LF" version of this model for potable water.

Specifications

• Type: Relief
• Size: 1/2"
• Inlet Size: 1/2"
• Outlet Size: 1/2"
• Connection: NPT
• Body Material: Bronze
• Max Pressure (psi): 175
• Pack Quantity: 12
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: BP30-075175
• Temperature: up to 180°F
• Lead-Free: No
• Relief Type: Calibrated Adjustable
• Adjustment Range: 75-175 psi
• Application: Pump Bypass Pressure Control
• Connection Configuration: MNPT inlet x FNPT outlet
• Automatic Reseating: Yes
• Approved for Potable Water: No
• SentryPlus Alert Flood Sensor: No