Standard Swedish standard · SS-EN 13959:2005

Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D

Status: Valid

Scope
The purpose of this document is to specify: -- field of application of anti-pollution check valves; -- backflow prevention properties, dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acoustic design for anti-pollution check valves of nominal sizes DN 6 to DN 250 inclusive; -- family E, type A, controllable anti-pollution check valve (with test port); -- family E, type B, non-controllable anti-pollution check valve, including cartridge check valve; -- family E, type C, controllable anti-pollution double check valve (with test ports); -- family E, type D, non-controllable anti-pollution double check valve, including cartridge double check valve; -- test procedures and requirements for verifying the backflow protection properties of stop valves, draw-off taps etc. which incorporate a check valve function. Stop valves, draw off taps etc, need also to comply with a recognised standard; -- marking; -- presentation at delivery. This document specifies the characteristics of anti-pollution check valves of DN 6 up to and including DN 250 that are suitable for use in drinking water systems. For application feasibility see Table 1.

Subjects

Check valves


Product information

Language: English

Written by: SIS - Bygg och anläggning

International title: Anti-pollution check valves - DN 6 to DN 250 inclusive family E, type A, B, C and D

Article no: STD-39530

Edition: 1

Approved: 4/29/2005

No of pages: 32