Watts 740-1 Relief ValveThe Watts 740 1 relief valve provides reliable overpressure protection for boilers, water heaters, and other pressure systems. The Watts 740 1 relief valve features 1 1 4" x 1 1 2" connections and a 50 PSI relief setting, with model F383310 (formerly 0383310) for dependable, long lasting performance. Built for safety and quick response, this valve releases excess pressure before damage occurs, protecting equipment and ensuring compliant operation. It

0 c rating for accurate pressure detection

With a set point range of 0 to 100°F and a differential 1°F

Durable material for extended service life

ensuring your heating or cooling cycles stay efficient

Easy wiring and mounting for fast installations

Designed for reliable heating performance

PGB024075-1A

The kit includes a gasket for a secure seal and easy installation

making it a trusted choice for service

Differential pressure rating: 10–40 PSI (Open Low) / 70 PSI (Open High)

The 24-inch door panel is engineered for a snug fit

Anti-scald performance improves user comfort and safety