Performance Requirements for Backflow Preventers with Integral Pressure Reducing Boiler Feed Valve and Intermediate Atmospheric Vent Style for Domestic and Light Commercial Water Distribution Systems
|Publication Date:||1 December 2014|
|ICS Code (Water supply systems):||91.140.60|
|ICS Code (Pressure regulators):||23.060.40|
The devices covered by this standard are multi-functional products, combined integrally in a single housing or manifold to provide the required features in a compact format that is serviceable and easily installed. These devices are intended to provide the same benefits and features as the products individually manufactured and qualified under ASSE 1003-2009, Performance Requirements for Water Pressure Reducing Valves for Domestic Water Distribution Systems, and ASSE 1012-2009, Performance Requirements for Backflow Preventer with an Intermediate Atmospheric Vent, except where specific limitations have been applied to suit residential and light commercial boiler feed and applications.
Inlet and outlet pipe sizes are ½ to ¾ NPS (15 mm to 20 mm) inclusive.
Minimum Pressure Rating
The device shall be designed and constructed for a working pressure of at least 150.0 psi (1034 kPa).
The device shall be designed and constructed for normal flow temperatures of 40.0 °F to 180.0 °F (4.4 °C to 82.2 °C).
Manufacturer's advertised maximum flow rate.