ANSI/ASSE (Plumbing) 1003-2009

Devices covered by this standard are self-contained, direct acting, single diaphragm types. Devices shall be permitted to have an integral strainer, separate strainer connected to the valve inlet, or be without strainer. Devices shall be permitted to be with or without an integral bypass relief valve. The purpose of this device is to reduce static and flowing pressures in water distribution systems.

This product replaces:ANSI/ASSE (Plumbing) 1003-2001 - Performance Requirements for Water Pressure Reducing Valves
This product is included inASSE (Plumbing) STANDARDS SET - Performance Requirements for Water Pressure Reducing Valves