Description
The Watts F276886 is a heavy-duty pressure relief valve engineered to protect hydronic heating systems, boilers, and plumbing installations from dangerous overpressure conditions. Sized at 1-1/2″ and factory-set to relieve at 50 PSI, this valve automatically opens to discharge excess pressure and reseats once safe operating levels are restored — helping safeguard equipment, piping, and building occupants.
Key Features
- Factory-set relief pressure: 50 PSI
- Connection size: 1-1/2″
- Automatic pressure relief and reseat operation
- Durable construction for long service life in demanding HVAC and hydronic applications
- Designed for use in boiler systems, pressure vessels, and hydronic heating loops
- Manufactured by Watts — a trusted name in flow control and water quality solutions
Applications
- Hydronic heating systems
- Boiler pressure protection
- Pressure vessels and hot water systems
- Commercial and residential HVAC installations
Why Choose Watts?
Watts has been a global leader in flow control products for over a century, delivering reliable valves, regulators, and water quality solutions trusted by contractors and engineers worldwide. The F276886 reflects Watts’ commitment to precision engineering and system safety.









