標準解讀
《GB/T 45027-2024 液氫閥門 通用規范》是針對液氫閥門設計、制造、檢驗和使用過程中的技術要求制定的標準。該標準適用于液氫系統中使用的各種類型的閥門，包括但不限于截止閥、調節閥、止回閥等。標準內容涵蓋了材料選擇、結構設計、密封性能、操作特性、安全防護措施等多個方面。
在材料選擇上，《GB/T 45027-2024》規定了用于制造液氫閥門的金屬與非金屬材料必須能夠承受低溫環境下的工作條件，并且不會因為溫度變化而產生脆性斷裂或其他形式的損壞。此外，還強調了對材料進行適當處理以確保其具有良好的耐腐蝕性和足夠的強度。
對于閥門的設計，《GB/T 45027-2024》提出了具體的要求，比如需要考慮到液氫介質的特殊性質（如易燃易爆），以及在極端低溫條件下工作的能力。同時，也明確了不同類型閥門的基本尺寸參數及其允許偏差范圍。
關于密封性能，《GB/T 45027-2024》詳細描述了如何通過壓力測試來驗證閥門在關閉狀態下能否有效阻止液體或氣體泄漏的方法。這包括了試驗的壓力等級、持續時間及合格標準等信息。
在安全防護方面，本標準特別指出所有涉及液氫操作的設備都應具備防止超壓、過熱等功能的安全裝置，并建議采用冗余設計提高系統的整體安全性。此外，還提到了安裝位置的選擇原則，以避免外部因素對閥門造成損害。
如需獲取更多詳盡信息，請直接參考下方經官方授權發布的權威標準文檔。
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- 2025-04-01 實施
文檔簡介
ICS
27.010
CCS
F
19
中華人民共和國國家標準
GB/T45027—2024
液氫閥門通用規范
Valvesforliquidhydrogen—Generalspecification
2024-12-31發布2025-04-01實施
國家市場監督管理總局發布
國家標準化管理委員會
GB/T45027—2024
目次
前言
·····································································································
Ⅲ
1
范圍
··································································································
1
2
規范性引用文件
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1
3
術語和定義
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2
4
技術要求
······························································································
3
4.1
基本要求
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3
4.2
材料
······························································································
3
4.3
結構設計
·························································································
5
4.4
常溫性能
························································································
10
4.5
低溫性能
························································································
13
5
試驗方法
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14
5.1
試驗條件
························································································
14
5.2
材料
·····························································································
15
5.3
結構設計
························································································
16
5.4
脫脂檢查
························································································
16
5.5
常溫性能
························································································
16
5.6
低溫性能
························································································
20
5.7
標志檢查
························································································
28
6
檢驗規則
····························································································
28
6.1
出廠檢驗
························································································
28
6.2
型式試驗
························································································
28
7
標志
·································································································
30
7.1
一般要求
························································································
30
7.2
閥體上的標記
···················································································
30
7.3
標牌上的標志
···················································································
31
7.4
其他標記
························································································
31
8
包裝和儲運
··························································································
31
附錄A（規范性）焊接要求焊接要求
································································
32
附錄B（資料性）閥門主要零部件金屬材料推薦牌號
···············································
34
附錄C（資料性）閥體加長頸推薦最小長度
·························································
35
附錄D（資料性）氣動控制閥泄漏率系數
···························································
36
附錄E（資料性）液氫溫度與壓力對應表
···························································
37
參考文獻
································································································
38
Ⅰ
GB/T45027—2024
前言
本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規
定起草。
請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。
本文件由全國氫能標準化技術委員會（SAC/TC309）和全國宇航技術及其應用標準化技術委員會
（SAC/TC425）共同提出并歸口。
本文件起草單位：北京航天動力研究所、北京航天石化技術裝備工程有限公司、北京航化節能環保
技術有限公司、國家市場監督管理總局、中國標準化研究院、空氣化工產品（中國）投資有限公司、上海市
氣體工業協會、蘇州紐威閥門股份有限公司、上海瑞控閥門有限公司、北京航天雷特機電工程有限公
司、重慶市特種設備檢測研究院、雷舸流體科技（上海）有限公司、薩姆森控制設備（中國）有限公
司、特瑞斯能源裝備股份有限公司、埃邁流體技術（上海）有限公司、廣西鑫晨特種設備檢測有限公
司、四川成都空分配套閥門有限公司。
本文件主要起草人：靳偉、吳玉珍、許健、秦先勇、楊燕梅、王春景、杜利鋒、周偉明、周桂林、
周魯立、戴賢波、滕磊軍、邱勇軍、曹廣濱、吳瑛、吳幫成、王悅萍、熊運華、陳銳。
Ⅲ
GB/T45027—2024
液氫閥門通用規范
警示：本文件不涉及與液氫閥門生產、應用有關的所有安全問題。在使用本文件前，使用者有責任
采取適當的安全、健康和保護措施，明確其適用范圍，并保證符合國家有關法律法規、強制性國家標準
的規定。
1范圍
本文件規定了液氫用閥門（以下簡稱“閥門”）的技術要求、試驗方法、檢驗規則、標志、包裝和
儲運要求。
本文件適用于公稱壓力不大于PN160，壓力等級不大于Class900，采用真空夾套絕熱措施和焊接連
接的液氫用截止閥、止回閥、球閥、氣動控制閥和易熔切斷型緊急切斷閥。
2規范性引用文件
下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文
件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用
于本文件。
GB/T150.4壓力容器第4部分：制造、檢驗和驗收
GB/T228.1金屬材料拉伸試驗第1部分：室溫試驗方法
GB/T229金屬材料夏比擺錘沖擊試驗方法
GB/T1954鉻鎳奧氏體不銹鋼焊縫鐵素體含量測量方法
GB/T2423.5環境試驗第2部分：試驗方法試驗Ea和導則：沖擊
GB/T2423.10環境試驗
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