Watts LFPV20C 100-300 1/2 Lead-Free Relief Valve, Brass, NPT

The Watts LFPV20C 100-300 1/2 is a lead-free calibrated adjustable pressure relief valve for thermal expansion / general service service, field-adjustable over 100-300 psi. It features a brass body. Rated to 300 psi. This model is certified lead-free for potable-water installations.

This 1/2 inch lead free pressure relief control valve is designed to open when diaphragm senses changes in upstream pressure. It is a direct acting, spring loaded, diaphragm type relief valve that is used as a control or self contained relief valve. The pressure set point is adjustable within the spring range, opening and closing within very close pressure limits. This valve features a lead free brass body, 1/2 NPT inlet and outlet connections, and a large diaphragm and seat area. The adjustable pressure range is 100 to 300 psi.

Features

• Lead free brass body construction
• Provides direct relief control
• Easy to adjust pressure setting
• Serviceable in-line

Common Questions

What pressure does this relieve at?

This is a calibrated valve — you set it. It adjusts over 100-300 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?

Yes. It is certified lead-free to NSF/ANSI 372, which is what plumbing codes require for any device in a drinking-water line.

Specifications

• Type: Relief
• Connection: NPT
• Body Material: Brass
• Max Pressure (psi): 300
• Pack Quantity: 6
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: LFPV20C 100-300 1/2
• Lead-Free: Yes
• Relief Type: Calibrated Adjustable
• Adjustment Range: 100-300 psi
• Application: Thermal Expansion / General Service
• Approved for Potable Water: Yes
• SentryPlus Alert Flood Sensor: No