GB/T 10868-2018 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 10868-2018: Steam converting valves for power station Status: Valid GB/T 10868: Historical versions
Basic dataStandard ID: GB/T 10868-2018 (GB/T10868-2018)Description (Translated English): Steam converting valves for power station Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J98 Classification of International Standard: 27.060.30 Word Count Estimation: 26,297 Date of Issue: 2018-02-06 Date of Implementation: 2018-09-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 10868-2018: Steam converting valves for power station---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.Steam converting valves for power station ICS 27.060.30 J98 National Standards of People's Republic of China Replacing GB/T 10868-2005 Power station temperature reducing and pressure reducing valve Published on.2018-02-06 2018-09-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released Directory Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Ordering Guide 3 5 Technical requirements 3 6 Material 7 7 Inspection and Test 7 8 Quality Certificate 10 9 Marking, Packaging, Supply, and Transportation 11 Appendix A (informative) Approximate calculation method of valve rated flow and leakage Appendix B (Normative Appendix) Leak Test Method 14 Appendix C (normative appendix) Valve inspection of cast steel castings Appendix D (Normative) Test methods for basic error, hysteresis, dead band and rated travel deviation 17 Appendix E (Normative) Measurement of the rated flow coefficient 18 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 10868-2005 "Power Station Temperature Reducing Valve". Compared with GB/T 10868-2005, except for editorial changes The main technical changes are as follows. --- Added terminology (see 3.4, 3.5, 3.6, 3.8, 3.14, 3.15 and 3.17); --- Increased the basic error, hysteresis, dead zone, and rated stroke deviation of performance requirements (see 5.3.1); --- Modify the pressure characteristics and flow characteristics in the original performance requirements, unified change to linear (LN) and equal percentage (EP) flow rate Deviations from the characteristic curves and slope deviations from the inherent flow characteristics (see 5.3.3 and 5.3.5, 5.5 and 5.6 in.2005); --- Increased physical and chemical requirements and regulations for Grade III forgings (see 5.5.5); --- Increased the calculation of rated flow and leakage (see Appendix A). This standard is proposed and managed by the National Standardization Technical Committee for Boiler and Pressure Vessels (SAC/TC262). This standard was drafted by. Hangzhou Huahui Valve Co., Ltd., Shanghai Power Generation Equipment Design and Research Institute Co., Ltd., and Harbin Power Group. Harbin Power Station Valve Co., Ltd., Wuhan Boiler Group Valve Co., Ltd., Huaxia Valve Co., Ltd., Qingdao Power Station Valve Co., Ltd. Secretary, South Valve Manufacturing Co., Ltd., Zhejiang Longde Environmental Protection Thermoelectric Co., Ltd. The main drafters of this standard are Chen Lilong, Zhang Ming, Chen Xiubin, Chen Weiping, Song Huanqiao, Zhang Na, Chen Xuefeng, Liu Shizhong, Wei Yubin, and Chen Wenlong. The previous versions of the standard replaced by this standard are. --- GB/T 10868-1989, GB/T 10868-2005. Power station temperature reducing and pressure reducing valve1 ScopeThis standard specifies the terminology and definition of power station temperature reducing and pressure reducing valve, ordering guide, technical requirements, materials, inspection and test, quality certificate, Marking, packaging, delivery and shipping. This standard applies to work pressure P ≤ 35MPa, working temperature t ≤ 625 °C power station steam system with temperature reducing valve. Working pressure P ≤ 35MPa, operating temperature t ≤ 625°C, power station steam system pressure reducing valve and power station with operating temperature t >625°C Steam system with temperature reducing valve can be implemented by reference.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 1047 Definition and selection of DN (nominal size) of pipeline components GB/T 1048 Definition and Selection of PN (Nominal Pressure) Pipeline Components GB/T 9113 Integral Steel Pipe Flange GB/T 12221 Metal Valve Structure Length GB/T 12224 steel valve general requirements GB/T 12229 General Valve Carbon Steel Casting Technical Conditions GB/T 15056 Casting Surface Roughness Evaluation Method GB/T 21465 valve terminology GB/T 26480 valve inspection and test JB/T 5223 Pneumatic Long Stroke Actuator for Industrial Process Control Systems JB/T 5263 power station valve cast steel technical conditions JB/T 6439 Valve Pressure Parts Magnetic Powder Inspection Inspection JB/T 6440 Valves Pressed Castings Radiographic Inspection JB/T 6902 Valve Liquid Permeation Test JB/T 6903 valve forgings ultrasonic inspection method JB/T 7927 Valve Cast Steel Appearance Quality Requirements JB/T 8219 Common and Intelligent Electric Actuators for Industrial Process Control Systems Technical Conditions for JB/T 9625 Boiler Pipe Accessory Steel Castings NB/T 47008 Carbon and Alloy Steel Forgings for Pressure Equipment NB/T 47013.2 Nondestructive Testing of Pressure Equipment Part 2. Ray Inspection NB/T 47013.3 Nondestructive testing of pressure equipment - Part 3. Ultrasonic testing NB/T 47013.4 Nondestructive testing of pressure equipment - Part 4. Magnetic particle testing NB/T 47013.5 Nondestructive testing of pressure equipment - Part 5. Penetrant testing NB/T 47037 Power Station Valve Modeling Method NB/T 47044 Power Station Valve ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 10868-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 10868-2018_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 10868-2018_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 10868-2018 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. |
