VC-C;未增塑聚氯乙烯;形状;航运;规范(验收);储存;试验;热塑性聚合物;运输;型式;阀座;阀门【英文主题词】: ABS;Acrylonitrile butadiene styrene;Anti-siphonage systems;CE marking;Check valves;Conformity;Connecting dimensions;Definitions;Design;Dimensions;Functions;Hand operated;Industrial fittings;Industries;Life (durability);Marking;Materials;Mode of connection;Order indications
E
ipelines
lastics
olybutene
olyethylene
olypropylene
olyvinyl chloride
olyvinylidene fluoride
ower-operated;PP;Production;PVC-C;PVC-U;Qualification tests;Shape;Shipping;Specification (approval);Storage;Temperature range;Testing;Thermoplastic polymers;Transport;Type testing;Types;Unplasticized polyvinyl chloride;Valve seats;Valves【摘要】: 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.NOTE 1 Industrial pipe systems also include systems for water supply for general purposes, drainage and sewerage.NOTE 2 Special requirements can apply to pipe systems for water for human consumption.This International Standard is concerned with the range of DNDN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 and DN 600and the range of PN and ClassPN 6, PN 10, PN 16, PN 25, and Class 150 and Class 300.【中国标准分类号】: J16【国际标准分类号】: 23_060_50【页数】: 14P;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 |