航空航天.液压系统.金属软管组件

[中文适用范围]： 本国际标准给出了中压、高温、柔性金属软管组件的规范，适用于在 - 55 ℃ 至 + 400 ℃ 的液体和气动系统中连续运行，短时温度可达 + 650 ℃。 本国际标准涵盖的软管组件适用于航空航天应用，在表中规定的压力和温度范围内使用时，在气动系统、引气系统、加热和通风系统以及仪表空气系统中输送空气和其他气体2 和 3。 本国际标准不包括此类组件中流速超过 54 m/s 的情况；更高的速度需要特殊的减振装置。 按照本国际标准规定的规格供应的软管组件可以有两种类型： ——类型 1：波纹内管 - 焊接，具有中等质量和中等柔韧性。 — 类型 2：波纹内管 - 无缝或对焊和重拉，质量轻，灵活性高。 [外文原描述]： ISO 7314 gives specifications for medium pressure, high temperature, flexible metal hose assemblies suitable for continuous operation in liquid and pneumatic systems from - 55 °C to + 400 °C, with short duration excursions up to + 650 °C. The hose assemblies covered by this International Standard are intended for use in aerospace applications for conveying air and other gases in pneumatic systems, bleed air systems, heating and ventilating systems and instrument air systems. ISO 7314 does not cover flow velocity in such assemblies exceeding 54 m/s; higher velocities require special vibration-dampening devices. Hose assemblies supplied to the specifications laid down in this International Standard may be of two types: Type 1: Convoluted inner tube - welded, of moderate mass and moderate flexibility. Type 2: Convoluted inner tube - seamless or butt-welded and redrawn, of low mass and high flexibility.