Watts 335M2 3/4″ FxF 30 PSI Pressure Relief Valve
The Watts 335M2 is a 3/4-inch female-by-female (FxF) threaded pressure relief valve factory-set at 30 PSI, engineered to safeguard hydronic heating systems, boilers, and plumbing equipment from dangerous overpressure conditions. Built to Watts’ exacting quality standards, this relief valve automatically opens to discharge excess pressure when system pressure exceeds the set point, then reseats once safe operating pressure is restored.
Key Features
- 3/4-inch female NPT inlet and outlet connections (FxF) for straightforward installation
- Factory-set relief pressure of 30 PSI for consistent, reliable overpressure protection
- Compact, durable construction suitable for hydronic heating and plumbing applications
- Automatic reseat operation — opens to relieve pressure, closes when system returns to safe levels
- Watts 335M2 series design trusted by HVAC and plumbing professionals
Specifications
- SKU: 0342691
- Model: 335M2
- Connection Size: 3/4 inch
- Connection Type: Female x Female (FxF) NPT
- Set Pressure: 30 PSI
- Brand: Watts
Applications
- Hydronic heating systems and boilers
- Closed-loop hot water systems
- Plumbing pressure protection
- Commercial and residential HVAC installations
