Plastics piping systems - Valves for polyethylene (PE) piping systems - Test method for leaktightness under and after bending applied to the operating mechanisms
塑料管道系统 - 聚乙烯(PE)管道系统的阀门 - 弯曲应用于操作机构和弯曲后的密封性的测试方法
This draft standard specifies a method for testing the ability of a valve, intended for use in PE piping systems for gas supply, to maintain its pressure retaining capabilities under and after being subject to a bending moment appliedto the operating mechanism (cap).