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液氢阀门 通用规范 Valves for liquid hydrogen—General specification ICS 27.010 CCS F 19 中华人民共和国国家标准 GB/T 45027—2024 2024-12-3 1发布 2025-04-0 1实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 2 4 技术要求 ······························································································ 3 4.1 基本要求 ························································································· 3 4.2 材料 ······························································································ 3 4.3 结构设计 ························································································· 5 4.4 常温性能 ························································································ 10 4.5 低温性能 ························································································ 13 5 试验方法 ···························································································· 14 5.1 试验条件 ························································································ 14 5.2 材料 ····························································································· 15 5.3 结构设计 ························································································ 16 5.4 脱脂检查 ························································································ 16 5.5 常温性能 ························································································ 16 5.6 低温性能 ························································································ 20 5.7 标志检查 ························································································ 28 6 检验规则 ···························································································· 28 6.1 出厂检验 ························································································ 28 6.2 型式试验 ························································································ 28 7 标志 ································································································· 30 7.1 一般要求 ························································································ 30 7.2 阀体上的标记 ··················································································· 30 7.3 标牌上的标志 ··················································································· 31 7.4 其他标记 ························································································ 31 8 包装和储运 ·························································································· 31 附录 A (规范性) 焊接要求焊接要求 ································································ 32 附录 B (资料性) 阀门主要零部件金属材料推荐牌号 ··············································· 34 附录 C (资料性) 阀体加长颈推荐最小长度 ························································· 35 附录 D (资料性) 气动控制阀泄漏率系数 ··························································· 36 附录 E (资料性) 液氢温度与压力对应表 ··························································· 37 参考文献 ································································································ 38 GB/T 45027—2024 Ⅰ
GB-T 45027-2024 液氢阀门 通用规范
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