ISO 7432:2021 玻璃增强热固性塑料（GRP）管和配件 带弹性密封件的锁紧承插接头包括双承插接头设计的试验方法

标准编号：ISO 7432:2021

中文名称：玻璃增强热固性塑料（GRP）管和配件 带弹性密封件的锁紧承插接头包括双承插接头设计的试验方法

英文名称：Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods to prove the design of locked socket-and-spigot joints, including double-socket joints, with elastomeric seals

发布日期：2021-04

标准范围

本文件规定了埋地和地上玻璃纤维增强热固性塑料（GRP）管道系统中带有锁定承插接头（包括双承插接头）和弹性密封件的接头的试验方法。本标准涵盖了仅在承受角运动、垂直于管道轴线的压缩（变形）和内部压力的特定组合时，测试接头密封性和抗损坏性的方法。它假设接头将受到静水压端推力的影响。9.2、9.3、9.4和9.6中详述的试验适用于带有锁紧插座和插口的接头，包括双接头-承插接头，并带有拟用于埋地或地上应用的弹性密封件。9.5中详述的弯曲试验可用于证明接头拟用于埋地应用或拟用于特殊地上情况的设计，试验可被视为适当。除9.5中详述的程序外，这些试验程序适用于所有标称尺寸的管道和管件接头。9.5中详述的试验适用于DN 600及以下的管道和管件接头。本试验适用于评估在参考标准中规定的温度下输送液体应用的接头。本文件中的试验程序会损坏试件，这些试件不适合在这些试验后重复使用。试验程序旨在进行型式试验。本文件仅适用于接头，并规定了证明其设计的测试方法。

This document specifies methods of test for joints with a locked socket and spigot, including double-socket joints, and with elastomeric seals, for buried and above-ground glass-reinforced thermosetting plastics (GRP) piping systems.It covers methods of testing for leaktightness and resistance to damage of the joint only, when subjected to specified combinations of angular movement, compression (deformation) perpendicular to the pipe axis and internal pressure. It assumes that the joint will be exposed to the effects of hydrostatic end thrust.The tests detailed in 9.2, 9.3, 9.4 and 9.6 are applicable to joints with a locked socket and spigot, including double-socket joints, and with elastomeric seals intended to be used in buried or above-ground applications.The bending tests detailed in 9.5 can be used to prove the design where joints are either intended to be used in buried applications or are intended to be used in particular above-ground situations, where the tests can be considered appropriate.With the exception of the procedure detailed in 9.5, these test procedures are applicable to joints for pipes and fittings of all nominal sizes. The tests detailed in 9.5 are applicable to joints for pipes and fittings up to and including DN 600. The tests are applicable for evaluating joints intended for applications conveying liquids at temperatures specified in the referring standards.The test procedures in this document are damaging to the test piece, which will not be suitable for reuse after these tests. The test procedure is intended for type testing purposes.This document is applicable only to the joint and specifies methods of testing to prove its design.

标准预览图