Most 0171M00003S assemblies come with the necessary mounting hardware or gaskets

Seamless Integration: Pairs directly with Maxitrol Series 14 and 44 amplifiers and modulating valves for a complete temperature control solution

simplifying field installation and ensuring a tight shut-off against high differential pressures

Durable Bronze Internals: The corrosion-resistant bronze spring cage and body ensure structural integrity under consistent 250°F maximum operating temperatures

Built with a 48 NEMA frame size and sleeve bearings

Watts 0121325 Valve R-134A Most 0171M00003S assemblies come withThe Watts 0121325 (Model 1XL 4 150) is a professional grade 1 2 inch T&P relief valve engineered for critical temperature and pressure protection in water heater and storage tank applications. This ASME rated safety valve is designed to manage thermal expansion and prevent over pressurization in systems with a maximum heat input of 15,000 BTU hr. Featuring a 4 inch extension thermostat with a specialized thermo bonded coating, the 1XL 4 ensures