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Devices to prevent pollution by backflow of potable water - Pipe interrupter with atmospheric vent and moving element DN 10 to DN 20 - Family D, type B
This document specifies: a) field of application;b) requirements for pipe interrupters with atmospheric vent and moving element; c) dimensional and the physico-chemical properties, and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with elastic membrane of DN 10 to DN 20; d) test procedure and requirements for verifying these properties; e) marking and presentation; f) acoustics.
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