Description
The Watts F382589 is a 740 040 series relief valve designed to provide reliable overpressure protection in hydronic heating and hot water system applications. With a 1″ inlet connection and a 1-1/4″ outlet connection, this valve is engineered to automatically discharge excess pressure, safeguarding system components, piping, and equipment from potentially damaging pressure surges.
Key Features
- 1″ inlet x 1-1/4″ outlet connection sizes for versatile system integration
- Watts 740 series construction — a trusted standard in hydronic and plumbing relief valve applications
- Automatic pressure relief operation helps protect boilers, water heaters, and hydronic system components
- Durable valve body construction designed for long service life in demanding HVAC and plumbing environments
- Drop-in replacement or new-installation ready for compatible Watts 740-series applications
Applications
- Hydronic heating systems
- Hot water supply systems
- Boiler pressure relief
- Commercial and residential HVAC plumbing
Specifications
- Brand: Watts
- SKU: F382589
- Model: 740 040
- Inlet Size: 1″
- Outlet Size: 1-1/4″
- Type: Relief Valve









