This International Standard specifies requirements for the design, functional characteristics and manufacture of check valves made of thermoplastics materials intended to allow the flow of liquid fluids through the valve in one direction only and to prevent backflow, their connection to the pipe system, the body materials and their pressure/temperature rating between – 40 °C and + 120 °C, for a lifetime of 25 years, and also specifies their tests.

This International Standard is applicable to valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed.

Cross References:
ISO 15493:2003
TR 10358:1993
ISO 9393-2:2005
ISO 8659:1989
ISO 12162:2009
ISO 10931:2005
EN 558:2017
EN 1092-1:2018
ISO 15493:2003/AMD 1:2016
EN 12266-1:2012
ISO 10931:2005/AMD 1:2015
ISO 7-1:1994
EN 1759-1:2004
ISO 7-1:1994/Cor 1:2007
EN 1267:2012
ISO 228-1:2000
EN 736-3:2008
ISO 898-1:2013
ISO 1167-1:2006
ISO 15494:2015
ISO 15493:2003/COR 1:2004
EN 736-2:1997
EN 805:2000
ISO 6708:1995
EN 736-1:1995
ISO 7268:1983


Incorporates the following:
Amendment, September 2019