Description
Watts F121479 — 3/4″ 125 PSI Relief Valve
The Watts F121479 is a 3/4″ pressure relief valve rated at 125 PSI, engineered to protect hydronic heating systems, boilers, and plumbing installations from dangerous overpressure conditions. Built to Watts’ exacting quality standards, this relief valve automatically opens to discharge excess pressure and reseats reliably once safe operating pressure is restored — providing continuous, maintenance-friendly protection.
Key Features
- Pressure rating: 125 PSI
- Connection size: 3/4″ inlet/outlet
- Automatic pressure relief and reseat operation
- Durable construction for long service life in hydronic and plumbing applications
- Compact design for easy installation in tight spaces
- Manufactured by Watts — a trusted name in flow control and water quality products
Typical Applications
- Residential and light commercial boilers
- Hydronic heating systems
- Domestic hot water systems
- Pressure vessels and storage tanks
- Closed-loop plumbing circuits
Why Choose Watts?
Watts has been a leading manufacturer of products that manage and conserve the flow of fluids for decades. The F121479 relief valve reflects that heritage — offering dependable overpressure protection that meets the demands of professional HVAC and plumbing contractors.
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