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GB/T 28572-2025 English PDF

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Upon your order, we will start to translate GB/T 28572-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

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Q: Should I purchase the latest version GB/T 28572-2025?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28572-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28572-2025: Specification and technical parameters of inlet valves for large and medium-sized hydraulic turbines
Status: Valid

GB/T 28572: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28572-2025	519	Add to Cart	5 days	Specification and technical parameters of inlet valves for large and medium-sized hydraulic turbines	Valid
GB/T 28572-2012	509	Add to Cart	4 days	Series of large and medium inlet valves of hydraulic turbine	Valid

Similar standards

GB/T 14478 GB/T 15468 GB/T 14478 GB/T 43683.3

Basic data

Standard ID: GB/T 28572-2025 (GB/T28572-2025)
Description (Translated English): Specification and technical parameters of inlet valves for large and medium-sized hydraulic turbines
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K55
Classification of International Standard: 27.140
Word Count Estimation: 26,298
Date of Issue: 2025-02-28
Date of Implementation: 2025-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 28572-2025: Specification and technical parameters of inlet valves for large and medium-sized hydraulic turbines

---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.
GB/T 28572-2025 English version. Specification and technical parameters of inlet valves for large and medium-sized hydraulic turbines ICS 27.140 CCSK55 National Standard of the People's Republic of China Replace GB/T 28572-2012 Specifications and technical parameters of water inlet valves for large and medium-sized turbines Released on 2025-02-28 2025-09-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Butterfly valve 1 5 Ball valve 2 6 Method for compiling water inlet valve model, basic parameters and basic dimensions, water inlet valve appearance drawing 3 Appendix A (Normative) Method for compiling water inlet valve models 4 Appendix B (Informative) Basic parameters and basic dimensions of water inlet valves 5 Appendix C (informative) Appearance of water inlet valve 17

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 replaces GB/T 28572-2012 "Water Inlet Valves for Large and Medium-sized Turbines". In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The wording in the scope was modified, "spherical valve" was changed to "ball valve", and the bracketed content "including storage pumps, water transfer pumps and water "Water transfer pump" in "Pump turbine" (see Chapter 1, Chapter 1 of the.2012 edition); b) GB/T 14478 has been modified as an undated reference (see Chapter 4 and Chapter 5, Chapter 4 and Chapter 5 of the.2012 edition); c) The transient pressure is replaced by the design pressure (not less than the transient pressure) (see Chapter 4, Chapter 4 of the.2012 edition); d) Delete the maximum static water head in Table 1 (see Chapter 4, Chapter 4 of the.2012 Edition); e) The “design pressure” value in Table 1 has been modified, i.e. the original value is divided by 100 and two decimal places are retained (see Chapter 4, Chapter 3 of the.2012 edition); f) "Centimeters" in Appendix A are changed to "millimeters" (see Appendix A, Appendix A of the.2012 edition); g) In Appendix A, “maximum static water head” is changed to “design water head” (see Appendix A, Appendix A of the.2012 edition). 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 was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee for Standardization of Hydraulic Turbines (SAC/TC175). This document was drafted by. Dongfang Electric Corporation, Harbin Electric Machinery Co., Ltd., China Southern Power Grid Energy Storage Co., Ltd. Co., Ltd., PowerChina Chengdu Survey and Design Institute Co., Ltd., State Grid New Energy Group Co., Ltd., China Three Gorges Construction (Group) Co., Ltd., China Power Construction Group East China Survey and Design Institute Co., Ltd., China Power Construction Group Beijing Survey and Design Institute Co., Ltd., China Power Construction Group Zhongnan Survey and Design Institute Co., Ltd., Sichuan Chuantou Tianwanhe Development Co., Ltd., Chongqing Turbine Factory Co., Ltd. Ren Company, Liaoning Dongke Electric Power Co., Ltd. The main drafters of this document are. Liu Lizheng, Gao Hongjun, Chen Hongyu, Sun Wenbin, Liu Demin, Gao Xin, Song Min, Xiao Wei, Li Guoya, Lei Xingchun, Shu Lingfeng, Zhou Zhenzhong, Li Li, Wu Chao, Qin Bo, Gao Shan, Wang Huanmao, Liu Xia, Wu Jibing, Huang Shihai, Gao Yanming. The previous versions of this document and the documents it replaces are as follows. ---First published in.2012 as GB/T 28572-2012; ---This is the first revision. Specifications and technical parameters of water inlet valves for large and medium-sized turbines

1 Scope

This document specifies the specification series, basic parameters and basic dimensions of water inlet valves for large and medium-sized turbines, as well as the method for compiling models. This document is applicable to turbines (including storage pumps, water transfer pumps and pump turbines) with nominal diameters of inlet valves of 1000mm~ Specifications and technical parameter selection of 10000mm butterfly valve and ball valve with nominal diameter of 500mm~5000mm.

2 Normative references

The contents of the following documents constitute the 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. GB/T 14478 Basic technical specifications for water inlet valves for large and medium-sized turbines

3 Terms and definitions

There are no terms or definitions that require definition in this document.

4 Butterfly valve

The nominal diameter and water head grade of the newly designed butterfly valve are generally referred to the provisions of Table 1.If the standard size cannot be met, the nominal diameter For diameters below 2500mm, the selection can be made at intervals of 50mm; for diameters above 2500mm, the selection can be made at intervals of 100mm. All matters specified shall comply with the provisions of GB/T 14478.If there are special requirements, they shall be determined by negotiation between the owner and the equipment contractor. Table 1 Butterfly valve specification series nominal diameter and design pressure classification Serial number Nominal diameter mm First gear design pressure Second gear design pressure Third gear design pressure Fourth gear design pressure MPa MPa MPa MPa 1 1000 0.85 1.40 2.25 3.40 2 1250 0.85 1.40 2.25 3.40 3 1500 0.85 1.40 2.25 3.40 4 1750 0.85 1.40 2.25 3.40 5.2000 0.85 1.40 2.25 3.40 6 2250 0.85 1.40 2.25 3.40 7 2500 0.85 1.40 2.25 3.40 8 2800 0.85 1.40 2.25 3.40 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28572-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28572-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 28572-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28572-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 28572-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28572-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.