ISO 19973-4:2007 气压传动 测试法评定组件可靠性 第4部分：压力调节器

标准编号：ISO 19973-4:2007

中文名称：气压传动 测试法评定组件可靠性 第4部分：压力调节器

英文名称：Pneumatic fluid power — Assessment of component reliability by testing — Part 4: Pressure regulators

发布日期：2007-08

标准范围

This part of ISO 19973 provides test procedures for assessing the reliability of pneumatic pressure regulatorsby testing and the methods of reporting the results of testing. General test conditions and the calculationmethod are provided in ISO 19973-1. The methods specified in ISO 19973-1 apply to the first failure withoutrepairs, but exclude outliers.The lifetime of pneumatic pressure regulators is usually given as a number of cycles. Therefore, whenever theterm “time” is used in this part of ISO 19973, this variable shall be understood as cycles.This part of ISO 19973 applies to manually adjustable and remote-piloted pressure regulators, both relievingand non-relieving. This part of ISO 19973 does not apply to pressure regulators that have a permanent bleed.This part of ISO 19973 also specifies test equipment and failure criteria (threshold levels) for tests to assessthe reliability of pneumatic pressure regulators.The life determined by the method in this part of ISO 19973 and in ISO 19973-1 is more conservative than the life experienced in actual field service.

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