Specifies requirements for the design, functionalcharacteristics and manufacture of check valvesmade of thermoplastics materials intended to allowthe flow of liquid fluids through the valve in onedirection only and to prevent backflow, theirconnection to the pipe system, the body materialsand their pressure/temperature rating between-40 degrees Celsius and +120 degrees Celsius,for a lifetime of 25 years, and also specifiestheir tests.

ONORM EN ISO 16137:2008

SS EN ISO 16137 Ed. 1 (2006) - Identical

UNE EN ISO 16137:2007 - Identical

NS EN ISO 16137 Ed. 1 (2006) - Identical

UNI EN ISO 16137:2006 - Identical

I.S. EN ISO 16137:2006 - Identical

NBN EN ISO 16137:2006 - Identical

NF EN ISO 16137:2006 - Identical

DIN EN ISO 16137 (2006-06) - Identical

BS EN ISO 16137:2006 - Identical

SN EN ISO 16137:2006 - Identical

ISO 16137:2006 - Identical

NEN EN ISO 16137:2006 - Identical