![Watts M335 Boiler Pressure Safety Relief Valve — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/spec-9031623409886.png?v=1782832889&width=1445)
Watts M335 Boiler Pressure Safety Relief Valve delivers reliable overpressure protection for boilers and hot water systems. It features a bronze body, 3/4 inch inlet and outlet with male-threaded x female-threaded end connections, a stainless steel spring, and a bronze seat with a silicone disc for tight shutoff. Built for high-heat steam, this valve handles up to 510,000 BTU/hour and uses a set pressure of 30 PSI, making it ideal for both residential and commercial applications.
- Inlet/Outlet: 3/4" connections with male thread x female thread end connections
- Materials: Bronze body, bronze seating, silicone disc, stainless steel spring
- Safety Rating: Set pressure 30 PSI; ASME HV, OEM, NB, ISO 9001 compliant
- Performance: Temperature steam rating up to 510,000 BTU/hour
- Compatibility: Suitable for residential and commercial boiler systems
- Dimensions: Overall 1-3/8" width x 2-3/4" height
- Disc: High heat resisting silicone disc
Specifications
| Type | Compact |
|---|---|
| Application | Residential and Commercial |
| Body Material | Bronze |
| End Connection | Male Threaded x Female Threaded |
| Inlet Size | 3/4 Inch |
| Outlet Size | 3/4 Inch |
| Standards | ASME HV, OEM, NB, ISO 9001 |
| Includes | High Heat Resisting Silicone Disc |
| Seat Material | Bronze |
| Disc Material | Silicone |
| Set Pressure Range | 30 PSI |
| Spring Material | Stainless Steel |