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ASSE 1003

2009 Edition, September 28, 2009

Complete Document

Performance Requirements for Water Pressure Reducing Valves for Domestic Water Distribution Systems

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Product Details:

  • Revision: 2009 Edition, September 28, 2009
  • Published Date: September 28, 2009
  • Status: Active, Most Current
  • Document Language: English
  • Published By: American Society of Sanitary Engineering (ASSE)
  • Page Count: 24
  • ANSI Approved: Yes
  • DoD Adopted: Yes

Description / Abstract:


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 by-pass relief valve.

Size Range

Connection pipe sizes shall be ½ NPS, ¾ NPS, 1 NPS, 1¼ NPS, 1½ NPS, 2 NPS, 2½ NPS and 3 NPS (12.7 mm, 19.1 mm, 25.4 mm, 31.8 mm, 38.1 mm, 50.8 mm, 63.5 mm and 76.2 mm).

Minimum Working Pressure

Devices shall be designed for a minimum working pressure of 250.0 psi (1723.8 kPa).

Temperature Range

The devices shall be designed for temperatures of 33.0 °F (0.6 °C) to 140.0 °F (60.0 °C) minimum.