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arallel threads;Screw threads;Screwed connections;Screwed joints;Specification (approval);Testing;Thread-connections;Threads;Valve for steel cylinders;Valve threads;Valves【摘要】: This International Standard specifies the requirements for the inspection and maintenance of cylinder valves,including valves with integrated pressure regulators (VIPR) (see ISO 22435).This International Standard may be applied to cylinder valves at the time of the periodic inspection of gascylinders, bundles, drums and trailers, and at any other time, e.g. at change of gas service (see ISO 11621). Itdoes not apply to routine inspection of cylinder valves carried out at the time of cylinder filling.NOTE National standards and regulations may apply to maintenance of cylinder valves.【中国标准分类号】: J74【国际标准分类号】: 23_020_30;23_060_01【页数】: 12P.;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |