ASSE/ANSI 1057-2023
Performance Requirements for Freeze Resistant Sanitary Yard Hydrants with Backflow Protection

Standard No.

ASSE/ANSI 1057-2023

Release Date

2023

Published By

American National Standards Institute （ANSI)

Latest

ASSE/ANSI 1057-2023

Scope

The purpose of freeze resistant sanitary yard hydrants is to supply potable water without danger of damage to the device due to freezing, to provide protection of the potable water supply from contamination due to ground water, and to prevent backflow in accordance with the backflow prevention device selected. These devices shall only be used on systems where the low head backpressure does not exceed that generated by an elevated hose equal to or less than 10.0 ft (3.0 m) in height. This device shall not be subjected to continuous pressure. Continuous pressure shall mean 12 hours use in a 24 hour period.

ASSE/ANSI 1057-2023 history

• 2023 ASSE/ANSI 1057-2023 Performance Requirements for Freeze Resistant Sanitary Yard Hydrants with Backflow Protection

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