Watts M335 is an ASME-rated bronze boiler pressure relief valve designed for hydronic heating systems up to 510,000 BTU. Features 3/4" male NPT inlet and 3/4" female NPT outlet with 30 PSI relief setting and 250°F maximum temperature rating. Stainless steel spring, silicone disc, and bronze seat construction ensure durability and reliable emergency pressure protection.
Watts M335 Bronze Boiler Pressure Relief Valve 3/4" NPT 30 PSI
Watts
$39.95
In Stock — 10+ available
- SKU:
- M335
- Product Type:
- Pressure Relief Valve
- Subcategory:
- Boiler Safety Relief
- Application:
- Residential/Commercial
- System Type:
- Boiler, Hydronic Heating System
- Installation Type:
- OEM Replacement
- BTU Output:
- 510,000 BTU/hr
- Temperature Range:
- 32°F to 250°F
- Pressure Rating:
- 30 PSI
- Inlet Size:
- 3/4" NPT Male
- Connection Type:
- NPT
- Connection / Joint:
- NPT
- Material:
- Bronze