NZS 4617:1989
Tempering (3-port mixing) valves
Covers requirements for tempering valves for storage hot water systems particularly in domestic situations where hot water poses a hazard. These valves are intended to prevent scalding in locations such as homes, schools, motels and residential premises, where ideally all hot water outlets should be sourced from a tempering valve. Provides for valves suitable for water inlet temperatures of up to 100 degrees C.
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