ASSE - 1052
Performance Requirements for Hose Connection Backflow Preventers
| Organization: | ASSE |
| Publication Date: | 1 September 2023 |
| Status: | active |
| Page Count: | 23 |
scope:
Description
A hose connection backflow preventer consists of two independent checks, force loaded or biased to a closed position, with an atmospheric vent located between the two check valves, which is force loaded or biased to an open position, and a means for attaching a hose.
Size Range
The device has male hose threaded outlets sized 1/2 NH, 3/4 NH or 1 NH. Inlets with hose threads are to be provided with a non‐removable feature.
Pressure
The devices shall be designed for a working pressure of at least 125.0 psi (861.9 kPa).
Temperature Range
The devices shall be designed for flow temperatures of 33.0 °F to 140.0 °F (0.6 °C to 60.0 °C).
This device may not be subjected to more than 12 hours of continuous water pressure.
Atmospheric
Vent Atmospheric vent(s) (air inlets) are to be provided with a non‐standard plumbing connection.
Document History
