Description
The Watts 0009431 is a 1.5″ 25AUB-Z3 direct-acting water pressure reducing valve engineered to protect plumbing systems and connected equipment from excessive water pressure. Part of the trusted Watts 25 series, this valve automatically reduces high incoming supply pressure to a safe, consistent downstream working pressure, helping extend the life of fixtures, appliances, and piping throughout residential and light commercial hydronic and plumbing systems.
Key Features
- Direct-acting pressure reducing valve for reliable, maintenance-friendly performance
- 1.5″ connection size — suitable for larger residential and light commercial installations
- 25AUB-Z3 configuration with union brass body construction for easy in-line servicing
- Preset outlet pressure of 25 PSI with maximum inlet pressure of 75 PSI
- Compact, rugged design suitable for a wide range of plumbing and hydronic applications
- Watts quality construction ensures long service life and consistent pressure regulation
Applications
- Residential and light commercial water supply systems
- Hydronic heating system pressure management
- Protection of water heaters, boilers, and plumbing fixtures
- Anywhere incoming water pressure must be reduced to a safe working level
Product Specifications
- Brand: Watts
- SKU: 0009431
- Model: 25AUB-Z3
- Connection Size: 1.5″
- Outlet Pressure Setting: 25 PSI
- Maximum Inlet Pressure: 75 PSI
- Body Material: Brass (Union configuration)
- Valve Type: Direct-Acting Pressure Reducing Valve









