OS GSO EN 14454:2024

EN 14454:2005
Omani Standard   Current Edition · Approved on 25 April 2024

Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A

OS GSO EN 14454:2024 Files

OS GSO EN 14454:2024 Scope

This document specifies: a) field of application; b) requirements for hose union backflow preventer; c) dimensional and the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of hose union backflow preventers DN 15 to DN 32; d) test method and requirements for verifying these properties; e) marking and presentation; f) acoustics. This document specifies the characteristics of hose union backflow preventers DN 15 to DN 32 that are suit-able for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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