气体氢 加氢站 第7部分：橡胶O型环

[中文适用范围]： 本文件规定了用于高压氢气设备中密封氢气的橡胶O型密封圈及其密封座尺寸的要求，这些设备包括加氢站中的阀门、过滤器、接头、断开装置等类似设备。本文件适用于在40 °C至65 °C操作温度范围内，可密封最高达70 MPa额定工作压力的氢气的O型密封圈。本文件包括O型密封圈及其密封座尺寸、材料配方设计以及密封系统测试方法的安全要求。本文件适用于用于加氢站中高压氢气设备密封的全新制造的O型密封圈。注1：本文件依据ISO 3601系列开发。注2：本文件基于适合用于气体氢加氢站中高压氢密封的多种温度等级的橡胶O型密封圈开发。注3：操作温度不是O型密封圈密封系统所密封的氢气的温度。无论操作温度如何，被密封的氢气温度可能上升至180 °C。注4：高压氢气设备的O型密封系统由设备制造商设计。高压氢气设备中静态或非静态高压氢气密封系统的O型密封圈的详细规格和设计，由相关方根据本文件商定确定。 [外文原描述]： This document specifies the requirements for rubber O-rings and their housing dimensions, which seal gaseous hydrogen, in high-pressure hydrogen devices for gaseous hydrogen fuelling stations, such as valves, filters, joints, breakaways and other such devices. This document is applicable to O-rings suitable for sealing hydrogen gas of up to 70 MPa nominal working pressure, in the operating temperature range of −40 °C to 65 °C. This document contains safety requirements for the design of O-rings and their housing dimensions, compound design, and test methods for seal systems. This document applies to newly manufactured O-rings for hydrogen gas seal in high-pressure hydrogen devices used in hydrogen fuelling stations. NOTE 1 This document was developed using the ISO 3601 series. NOTE 2 This document was developed based on several temperature classes of rubber O-rings suitable for use with high-pressure hydrogen seals in devices for gaseous hydrogen stations. NOTE 3 The operating temperature is not a temperature of the hydrogen gas to be sealed by the O-ring gas seal system. Regardless of the operating temperature, the hydrogen gas temperature to be sealed can rise up to 180 °C. NOTE 4 The O-ring seal system for the high-pressure hydrogen devices are designed by the device manufacturers. The detailed specifications of the O-rings and design of static or non-static high-pressure hydrogen seal systems for the high-pressure hydrogen devices are determined as agreed upon between the interested parties by referring to this document.