Watts 0383021 Valve Freon Synthetic Seating: Utilizes high-grade synthetic

Synthetic Seating: Utilizes high-grade synthetic materials to ensure a leak-proof seal and long-term seat tightness

Probes are sold separately to allow for custom length selection based on tank depth

Integrated HOA override switch allows field technicians to force the load on or off for diagnostic verification

boiler reservoirs

Replacing the motor promptly prevents strain on the humdistat and control board

Watts 0383021 Valve Freon Synthetic Seating: Utilizes high-grade syntheticThe Watts 0383021 is a high capacity ASME Section IV safety relief valve designed specifically for commercial hot water space heating boilers. This Watts 740 series relief valve features a 1 1 4 inch NPT female inlet and an expanded 1 1 2 inch NPT female outlet, engineered to decrease discharge velocity and prevent potential backpressure issues within the return line. With a factory set relief pressure of 35 PSI and a certified steam discharge