GB/T 44678-2024 English PDF

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GB/T 44678-2024: Ships and marine technology - Check valves for use in low temperature applications - Design and testing requirements
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 44678-2024	434	Add to Cart	4 days	Ships and marine technology - Check valves for use in low temperature applications - Design and testing requirements	Valid

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Basic data

Standard ID: GB/T 44678-2024 (GB/T44678-2024)
Description (Translated English): Ships and marine technology - Check valves for use in low temperature applications - Design and testing requirements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U52
Classification of International Standard: 47.020.30
Word Count Estimation: 22,270
Date of Issue: 2024-09-29
Date of Implementation: 2025-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 44678-2024: Ships and marine technology - Check valves for use in low temperature applications - Design and testing requirements

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 47.020.30 CCSU52 National Standard of the People's Republic of China Ships and offshore technology Cryogenic check valves for ships Design and test requirements (ISO 20602.2019,IDT) Released on 2024-09-29 2025-01-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Pressure temperature level 3 4.1 Media Type 3 4.2 Working pressure and design temperature 3 5 Design 3 5.1 Check valve basic structure 3 5.2 Basic material requirements 3 5.3 Valve body 4 5.4 Valve cover 5 5.5 Valve disc 5 5.6 Gasket 5 5.7 Valve seat 5 5.8 Hinges and hinge pins (if applicable) 5 5.9 Bolts and nuts 5 6 Surface treatment 6 7 Welding and heat treatment 6 7.1 Welding 6 7.2 Heat treatment 6 8 Testing and Inspection 6 8.1 Material inspection 6 8.2 Nondestructive testing 6 8.3 Dimensional inspection 7 8.4 Visual inspection 7 8.5 Heat treatment inspection 7 8.6 Pressure test 7 8.7 Fire test 8 8.8 Low temperature test 8 9 Logo 10 Appendix A (Informative) Ultra-low temperature check valve---Example 11 Reference 14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is equivalent to ISO 20602.2019 "Ships and offshore technology - Design and test requirements for cryogenic check valves for marine use". The following minimal editorial changes were made to this document. --- Incorporates the amendments to ISO 20602.2019/Amd.1.2021.The outer margins of the clauses involved are indicated by vertical Double lines (‖) are marked; --- Corrected the typographical errors in the international standards and modified some standard names in Chapter 2; --- Corrected the typographical errors in the international standards and modified the density of nitrogen in Table 1; ---NPS is changed to NPS(DN), see 5.3.2.3.2; --- Corrected the typographical errors in the international standard and modified the corresponding chapter numbers of f), g) and h) in 8.8.3. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Marine Machinery (SAC/TC137). This document was drafted by. China Shipbuilding Industry Corporation Comprehensive Technical and Economic Research Institute, Fujian Shipbuilding and Transportation Vocational College, Shanghai Hailu Feng Marine Valve Co., Ltd., Zhoushan Huisheng Marine Engineering Co., Ltd., Nantong Shifa Marine Machinery Co., Ltd., China Merchants Jinling Shipbuilding (Jiangsu) Co., Ltd., Hubei Taihe Petrochemical Equipment Co., Ltd., Dalian COSCO Kawasaki Ship Engineering Co., Ltd., Shanghai Hudong Shipbuilding Valve Door Co., Ltd., Kairuite Valve Industry Group Co., Ltd., Fangzheng Valve Group Co., Ltd., Shuangheng Valve Group Co., Ltd., Dongyi Valve Manufacturing (Nantong) Co., Ltd., Qingdao Offshore Comprehensive Test Field Co., Ltd., China Valve Holdings (Group) Co., Ltd., Guangdong CSSC Military-Civil Integration Research Institute RESEARCH INSTITUTE LIMITED. The main drafters of this document are. Wu Yongfeng, Weng Wuxiu, Li Yi, Wang Bigai, Liu Jun, Wang Yanpo, Wang Wei, Li Linwei, Jiang Yufeng, Jin Ning, Li Guorong, Lu Yongyong, Liu Xueqiang, Zhang Wenzhong, Han Longsheng, Xu Weiming, Liu Huanming, Li Yunlong, Pei Yaogui, Hao Wenming, Wu Chengjie, Chen Shengtan, Huang Wenyi, Chen Taozhong, Wu Xiance, Bai Hang, Zhao Xu, Chen Xing, Chen Zhiwen, Shen Yilin, Fan Chengyu, and Jiang Bin. Ships and offshore technology Cryogenic check valves for ships Design and test requirements

1 Scope

This document specifies the design, Manufacturing and testing requirements.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. Note. GB/T 12220-2015 Industrial valve marking (ISO 5209.1977, MOD) ISO 28921-1 Industrial valves - Isolation valves for cryogenic use - Part 1.Design, manufacture and product testing (Industrialvalves- ting) API594 flanged, lug, wafer and butt check valves welding ASMEB16.11 Forged Fittings, Socket-Welding and Threaded ASMEB16.34.2017 Valves-Flanged, Threads, and Welding End) ASMEB46.1 Surface Texture (Surface Roughness, Waviness and Pattern Direction) Roughness, Waviness, and Lay)] ASME BPVC Sec. VIII Div. 1..2018 Pressure Vessels temperatureService) Service, or Both) ......

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