Watts Series LF140 Automatic Reseating Temperature & Pressure Relief Valve

The combined 2-in-1 Temperature & Pressure Relief Valve provides the least expensive and proven means for protection against both excessive temperature and pressure emergency conditions. Fully automatic temperature and pressure relief protection for domestic hot water supply tanks and heaters based on the latest ANSI Z21.22 Listing requirements for temperature discharge capacity. The LF40, LF140, LFN240, and LF340 feature Lead Free* construction to comply with Lead Free installation requirements. 

This 0121449 3/4 inch automatic reseating temperature and pressure relief valves features a lead free construction brass body with NPT male inlet and NPT female outlet connections, thermo-bonded coated thermostat, tamper resistant bonnet screws, automatic reseating feature, and test lever. The temperature relief is 210 degrees and the pressure relief is 150 psi.

Features:

• Lead Free cast body
• Non-mechanical seat-to-disc alignment
• Tamper-resistant bonnet screws
• Series 3⁄4" LF40, LF140 and 1" LF40 feature a unique thermostat with a special thermo-bonded coating
• Series 1" LF140 are furnished with stainless steel thermostat tube