ISO 8233:2024 热塑性塑料阀门 扭矩 试验方法

标准编号：ISO 8233:2024

中文名称：热塑性塑料阀门 扭矩 试验方法

英文名称：Thermoplastics valves — Torque — Test method

发布日期：2024-03

标准范围

本文件规定了测定热塑性塑料阀门开启、关闭和运行扭矩的试验方法。本文件适用于所有类型的手动操作的热塑性阀，带或不带致动器，旨在用于流体输送。注1？用这种方法测试的阀门类型的例子在ISO？4437-4，ISO？16135，ISO？16136，ISO？16138，ISO？16139，ISO？16486-4，ISO？21787，恩？1555-4[13]和恩？12201-4[14].本文件未规定阀门在特定工作条件下长时间使用或材料磨损/化学侵蚀后扭矩与其可能增加的关系。注2？关于材料的化学侵蚀性，ISO/TR？中报告了一系列数据？10358涉及确认手动塑料阀承受重复打开和关闭操作的长期使用能力所必需的耐久性试验。ISO中提供了更多信息？8659.

This document specifies a test method for the determination of the opening, closing and running torque of thermoplastics valves.

This document is applicable to all types of manually operable thermoplastics valves, with or without actuator, intended to be used for the transport of fluids.

NOTE 1        Examples of valve types tested with this method are in ISO 4437-4, ISO 16135, ISO 16136, ISO 16138, ISO 16139, ISO 16486-4, ISO 21787, EN 1555-4^[13] and EN 12201-4 ^[14].

This document does not specify the relationship between the torque and its possible increase after prolonged use of the valve under a specific working condition or wear/chemical aggression of the materials.

NOTE 2        Concerning the chemical aggression of the materials, a collection of data is reported in ISO/TR 10358 concerning the endurance test necessary to confirm the ability of hand-operated plastics valves to withstand prolonged use with repeated opening and closing operations. Further information is provided in ISO 8659.

标准预览图