GB/T 17241.1-2024 English PDFUS$999.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17241.1-2024: Cast iron pipe flanges - Part 1: PN designated Status: Valid GB/T 17241.1: Historical versions
Basic dataStandard ID: GB/T 17241.1-2024 (GB/T17241.1-2024)Description (Translated English): Cast iron pipe flanges - Part 1: PN designated Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J15 Classification of International Standard: 23.040.60 Word Count Estimation: 50,512 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 17241.1-1998; GB/T 17241.2-1998; GB/T 17241.3-1998; GB/T 17241.4-1998; GB/T 17241.5-1998; GB/T 17241.6-2008; GB/T 17241.7-1998; GB/T 17241.1-1998; GB/T 17241.2-1998; GB/T 17241.3-1998; GB/T 17241.4-1998; GB/T 17241.5-1998; GB/T 17241.6-2008; GB/T 17241.7-199 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17241.1-2024: Cast iron pipe flanges - Part 1: PN designated---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 23:040:60 CCSJ15 National Standards of People's Republic of China Partially replaces GB/T 17241:1-1998~GB/T 17241:5-1998, GB/T 17241:6-2008, GB/T 17241:7-1998 Cast iron pipe flanges Part 1: PN series Released on 2024-04-25 2024-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Types and parameters 1 4:1 Nominal pressure 1 4:2 Nominal size 1 4:3 Flange sealing surface type and code 2 4:4 Flange type, code and applicable scope 2 5 Types and sizes 7 5:1 Integral cast iron pipe flange 7 5:2 Cast iron pipe flange with neck thread 16 5:3 Neck flat welding and neck socket welding cast iron pipe flanges 21 5:4 Cast iron pipe flange cover 25 5:5 Plate type loose sleeve cast iron pipe flange 35 6 Technical Requirements 38 6:1 Flange material 38 6:2 Pressure-temperature ratings 39 6:3 Dimensional tolerance 40 6:4 Flange sealing surface roughness 41 6:5 Processing and manufacturing 42 6:6 Fasteners and sealing gaskets 42 6:7 Patch 42 7 Pressure test 42 8 Inspection and Acceptance 42 8:1 Inspection 42 8:2 Acceptance 43 9 Signs and Markings43 9:1 Sign 43 9:2 Mark 43 10 Ordering requirements and packaging 43ForewordThis 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 Part 1 of GB/T 17241 "Cast Iron Pipe Flanges": GB/T 17241 has been published in the following parts: --- Part 1: PN series; --- Part 2: Class series: This document partially replaces GB/T 17241:1-1998 "Types of cast iron pipe flanges", GB/T 17241:2-1998 "Types of cast iron pipe flanges" GB/T 17241:3-1998 "Cast Iron Pipe Flange with Neck Thread", GB/T 17241:4-1998 "Cast Iron Pipe Flange with Neck Slip-On and Neck Socket Welding Pipe flange", GB/T 17241:5-1998 "Tube end flange with loose sleeve cast iron pipe flange", GB/T 17241:6-2008 "Integral cast iron flange" The contents of PN series cast iron pipe flanges in GB/T 17241:7-1998 "Technical conditions for cast iron pipe flanges" series standards are consistent with the original documents: In addition to structural adjustments and editorial changes, the main technical changes are as follows: a) Added DN2200, DN2400, DN2600 sizes of integral cast iron pipe flanges at PN10 and PN16 nominal pressures (See Table 6 and Table 7); b) Added flange dimensions for integral cast iron pipe flanges and flange covers at PN63 nominal pressure (see Table 10); c) Added cast iron pipe flange cover sizes of DN2200, DN2400, and DN2600 at PN10 and PN16 nominal pressures (see Table 22, Table 23); d) Added ductile iron material grades QT350-22, QT450-10, QT500-7 (see Table 31); e) Deleted the malleable cast iron material grades KTH330-08 and KTH370-12 (see Table 1 of GB/T 17241:1-1998); f) Added the selection principles of flange pressure and temperature ratings (see 6:2); g) Changed the flange size tolerance requirements (see 6:3, Chapter 4 of GB/T 17241:7-1998); h) The flange sealing surface roughness requirements have been changed (see 6:4, 5:2 of GB/T 17241:7-1998); i) Added requirements for flange processing and manufacturing (see 6:5); j) Added requirements for flange supporting products (bolts and gaskets) (see 6:6): 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 Machinery Industry Federation: This document is under the jurisdiction of the National Technical Committee for Standardization of Pipeline Accessories (SAC/TC237): This document was drafted by: China Machinery Productivity Promotion Center Co:, Ltd:, Xinxing Casting Pipe Co:, Ltd:, Meide Group Co:, Ltd:, Liaoning Aiweier Metal Forming Technology Co:, Ltd:, Anhui Outaiqi Smart Water Technology Co:, Ltd:, Anhui Tongfa Equipment Co:, Ltd:, Hebei Jianzhi Casting Group Co:, Ltd:, Shanghai Guanlong Valve Energy Saving Equipment Co:, Ltd:, Bonaswei Valve Co:, Ltd:, Gaoan Lux Machinery Co:, Ltd: and Jiangyin Jintong Petrochemical Equipment Co:, Ltd: The main drafters of this document are: Li Xiaoqin, Zhou Zhanhu, Xu Jun, Ren Yanqing, Feng Feng, Wang Shupei, Jiao Xiangjing, Liu Fengnian, Wang Ronghui, Ai Chenguang, Wang Daoqun, Lu Xiaobin, Yao Minghua: The previous versions of this document and the documents it replaces are as follows: ---First published in:1998 as GB/T 17241:1-1998; --- This is the first revision, incorporating GB/T 17241:2-1998 "Cast Iron Pipe Flange Cover", GB/T 17241:3-1998 " Neck threaded cast iron pipe flange", GB/T 17241:4-1998 "Cast iron pipe flange with neck flat welding and neck socket welding", GB/T 17241:5-1998 "Tube end flange with loose sleeve cast iron pipe flange", GB/T 17241:6-2008 "Integral cast iron flange" (The previous versions of GB/T 17241:6-2008 are: GB/T 17241:6-1998) and GB/T 17241:7- PN series cast iron pipe flange content of the:1998 "Technical Conditions for Cast Iron Pipe Flanges" series of standards:IntroductionCast iron pipe flanges are widely used basic parts and connectors in pipeline systems: The original GB/T 17241 series of standards are mainly based on Different flange types are divided into 7 parts: In order to unify the domestic and international standard system, simplify the number of standards, and facilitate domestic and foreign users to understand and use This revision is integrated into the following two parts according to the nominal pressure series: --- Cast iron pipe flanges Part 1: PN series; --- Cast iron pipe flanges Part 2: Class series: The two standards correspond to the two major flange series commonly used internationally, namely the PN series (Europe) and the Class series (America), and also supplement And improve the relevant technical content in the design, manufacture, inspection and use of cast iron pipe flanges in my country, and improve the overall quality of domestic cast iron flanges: Cast iron pipe flanges Part 1: PN series1 ScopeThis document specifies the types and parameters, types and dimensions, technical requirements, pressure tests, inspections, and other requirements of PN series cast iron pipe flanges and flange covers: and acceptance, marking and labeling, ordering requirements and packaging: This document is applicable to materials such as gray cast iron, ductile iron, and malleable cast iron, with nominal pressures of PN2:5 to PN63 and nominal sizes of DN10 to DN4000 cast iron pipe flange and flange cover:2 Normative referencesThe 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 152:4 Fasteners - Countersunk holes for hexagonal head bolts and hexagonal nuts GB/T 1047 Definition and selection of nominal sizes of piping components GB/T 1048 Definition and selection of nominal pressure of pipeline components GB/T 1348 Ductile iron castings GB/T 6060:1 Surface roughness comparison specimens Part 1: Casting surface GB/T 7306:1 55° sealing pipe thread Part 1: Cylindrical internal thread and conical external thread GB/T 7306:2 55° sealing pipe thread Part 2: Conical internal thread and conical external thread GB/T 9439 Grey iron castings GB/T 9440 Forgeable iron castings GB/T 12716 60° Sealing Pipe Thread3 Terms and definitionsThe terms and definitions defined in GB/T 1047 and GB/T 1048 apply to this document:4 Types and parameters4:1 Nominal pressure This document specifies the following 7 pressure levels marked with PN for nominal pressure: PN2:5, PN6, PN10, PN16, PN25, PN40, PN63: 4:2 Nominal dimensions This document specifies the following 39 specifications with nominal sizes marked by DN: DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000、DN1200、DN1400、DN1600、DN1800、DN2000、DN2200、DN2400、DN2600、DN2800、 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17241.1-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 17241.1-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 17241.1-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 17241.1-2024 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. |
