2023-3-22 3.238.253.163
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Position: Chinese Standard in English/GB/T 12237-2021
GB/T 12237-2021   Steel ball valves for petroleum, petrochemical and allied industries (English Version)
Standard No.: GB/T 12237-2021 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 10500 words Price(USD):315.0 remind me the price change

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Implemented on:2021-10-1 Delivery: via email in 1 business day
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Standard No.: GB/T 12237-2021
English Name: Steel ball valves for petroleum, petrochemical and allied industries
Chinese Name: 石油、石化及相关工业用的钢制球阀
Chinese Classification: J16    Valve
Professional Classification: GB    National Standard
Issued by: SAMR, SAC
Issued on: 2021-03-09
Implemented on: 2021-10-1
Status: valid
Superseding:GB/T 12237-2007 Stell ball valves for petroleum petrochemical and allied industries
Language: English
File Format: PDF
Word Count: 10500 words
Price(USD): 315.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization—Part 1: Rules for the structure and drafting of standardizing documents. This document replaces GB/T 12237-2007 Steel ball valves for petroleum, petrochemical and allied industries. In addition to a number of editorial changes, the following main technical changes have been made with respect to GB/T 12237-2007: a) the applicable scope of the ball valve is expanded, and the pound class requirements, applicable structure and temperature requirements are added (see Clause 1, Clause 1 of the Edition 2007); b) the overpressure requirements of body cavity are added (see 5.1.3); c) the minimum sectional area requirements for connections between valve bodies are modified (see 5.6.8; 5.6.6 of Edition 2001); d) the packing box requirements are deleted (5.12.2 of Edition 2007) ; e) the limit requirements of operating mechanism are added (see 5.12.3); f) the material requirements are modified (see Clause 6; Clause 6 of Edition 2007). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This standard was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of National Technical Committee 188 on Valve of Standardization Administration of China (SAC/TC 188). The previous editions of this standard are as follows: ——It was first issue as GB/T 12237-1989 in 1989, and first revised in 2007; ——This is the second revision. Steel ball valves for petroleum, petrochemical and allied industries 1 Scope This document specifies the structural type, technical requirements, materials, test methods, inspection rules, markings, protection, packaging, storage and transportation of steel ball valves of elastic sealing pair for petroleum, petrochemical and allied industries. This document is applicable to: ——Ball valves at flange connecting end and welded connecting end, with nominal pressure of PN16-PN100, nominal dimension of DN15-DN600, pressure class of Class150-Class600 and nominal dimension of NPS½-NPS 24; ——Ball valves at threaded connecting end and socket welding connecting end, with nominal pressure of PN16-PN140, nominal dimension of DN8-DN50, pressure class of Class150-Class800 and nominal dimension NPS¼ -NPS2; ——-Ball valves with full diameter and reduced diameter. Ball valves with floating ball structure and fixed ball structure; ——Applicable temperature: -46°C to 260°C. Ball valves with metal and ceramic material sealing pair can be implemented by reference to this document. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 150.4 Pressure vessels—Part 4: Fabrication, inspection and testing, and acceptance GB/T 152.4 Fasteners—Counterbores for hexagon bolts and nuts GB/T 196 General purpose metric screw threads—Basic dimensions GB/T 197 General purpose metric screw threads—Tolerances GB/T 228.1 Metallic materials - Tensile testing—Part 1: Method of test at room temperature   GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2: Taper internal and external threads GB/T 9124 (All parts) Steel pipe flanges GB/T 12220 Industrial valves—Marking GB/T 12221 Metal calves—Face to face, end to end, center to face and center to end dimensions GB/T 12223 Part-turn valve actuator attachments GB/T 12224 General requirements for industrial steel valves GB/T 12228 General purpose industrial valves—Specification of carbon steel forgings GB/T 12229 General purpose industrial valves—Specification of carbon steel castings GB/T 12230 General purpose industrial valves—Specification of stainless steel castings GB/T 20801.5 Pressure piping code—Industrial piping—Part 5: Inspection and testing GB/T 26479 Fire test for soft-seated quarter-turn valves GB/T 26480 Valve inspection and testing GB/T 35741 Specification of stainless steel forgings for industrial valves JB/T 106 Valves marking and paint SY/T 7024 Technical code for field hardness test of metal materials used in highly hydrogen sulfide gas field 3 Terms and definitions For the purposes of this document, the following term and definition apply. 3.1 conducting electrostatic design structure to ensure continuous electrostatic conduction among valve body, ball and stem 3.2 fire resisting design structure that can still maintain certain sealing performance requirements when the elastic sealing material is damaged by fire 4 Structural types Typical structure of floating ball valve (one-piece type) is shown in Figure 1, typical structure of floating ball valve (two-piece type) is shown in Figure 2, and typical structure of fixed ball valve is shown in Figure 3. Keys of index numbers: 1——valve body; 5——ball; 9——packing restrainer; 2——valve seat gland; 6——stem; 10——screw; 3——seal ring of valve seat gland; 7——stem packing; 11——handle. 4——seal ring of valve seat; 8——packing bushing; Figure 1 Schematic diagram for typical structure of floating ball valve (one-piece type) Keys of index numbers: 1——left valve body; 6——ball; 11——packing bushing; 2——stud; 7——stem; 12——packing restrainer; 3——nut; 8——stem thrust gasket; 13——screw. 4——valve body; 9——valve body gasket; 5——valve seats; 10——packing; Figure 2 Schematic diagram for typical structure of floating ball valve (two-piece type) Keys of index numbers: 1——valve body; 7——lower stem; 13——screw. 2——stud; 8——upper stem; 14——lower stem end cover; 3——nut; 9——seal ring; 15——seal ring; 4——left valve body; 10——packing; 16——bolt. 5——valve seats; 11——packing bushing; 6——ball; 12——packing restrainer; Figure 3 Schematic diagram for typical structure of fixed ball valve (three-piece type)
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Structural types 5 Technical requirements 5.1 Pressure-temperature rating 5.2 Structure length 5.3 Connecting end 5.4 Dimension of ball runner 5.5 Valve body 5.6 Connection between valve bodies 5.7 Anti-dropping structure of stem 5.8 Stem structure 5.9 Ball 5.10 Packing gland and bolts 5.11 Conducting electrostatic design 5.12 Operating mechanism 5.13 Fire resisting design 5.14 Non-destructive test 5.15 Pressure test of ball valve 5.16 Ordering requirements 6 Materials 6.1 Ball valve housing 6.2 Ball and valve seat 6.3 Stem 6.4 Connecting studs and bolts between valve bodies 6.5 Connecting bolts between packing gland and bonnet 6.6 Sealing materials 6.7 Packing sleeve and packing plate 6.8 Plug screw 6.9 Handle or handwheel 6.10 Hydrogen sulfide resistance 7 Test methods and inspection rules 7.1 Test methods 7.2 Inspection rules 8 Marking 8.1 Marking contents 8.2 Marking on valve body 8.3 Markings on the plate 8.4 Other markings 9 Protection, packaging, storage and transportation Annex A (informative) Order contract data sheet
Referred in GB/T 12237-2021:
*GBT150.4-
*GB/T 152.4-1988 Fasteners - Counterbores for hexagon bolts and nuts
*GB/T 196-2003 General Purpose Metric Screw Threads-Basic Dimensions
*GB/T 197-2018 General purpose metric screw threads—Tolerances
*GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1: Method of test at room temperature
*GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads--Part 2:Taper internal and external threads
*GB/T 9124-2010 Specification for steel pipe flanges
*GB/T 12220-2015 Industrial valves―Marking
*GB/T 12221-2005 Metal calves--Face to face,end to end,center to face and center to end dimensions
*GB/T 12223-2005 Part-turn valve actuator attachments
*GB/T 12224-2015 General requirements for industrial steel valves
*GB/T 12228-2006 General purpose industrial valves - Specification of carbon steel forgings
*GB/T 12229-2005 General purpose industrial valve - Specification of spheroidal graphite iron castings
*GB/T 12230-2005 General purpose industrial valve - Specification of stainless steel castings
*GB/T 20801.5-2020 Pressure piping code - Industrial piping - Part 5: Inspection and testing
*GB/T 26479-2011 Fire test for soft-seated quarter-turn valves
*GB/T 26480-2011 Valve inspection and testing
*GB/T 35741-2017 Specification of stainless steel forgings for industrial valves
*JB/T 106-2004 Valves marking and paint
*SY/T 7024-2014 Technical code for field hardness test of metal materials used in highly hydrogen sulfide gas field
GB/T 12237-2021 is referred in:
*GJB 2497-1995 Test method for satellite structures
Code of China
Standard
GB/T 12237-2021  Steel ball valves for petroleum, petrochemical and allied industries (English Version)
Standard No.GB/T 12237-2021
Statusvalid
LanguageEnglish
File FormatPDF
Word Count10500 words
Price(USD)315.0
Implemented on2021-10-1
Deliveryvia email in 1 business day
Detail of GB/T 12237-2021
Standard No.
GB/T 12237-2021
English Name
Steel ball valves for petroleum, petrochemical and allied industries
Chinese Name
石油、石化及相关工业用的钢制球阀
Chinese Classification
J16
Professional Classification
GB
ICS Classification
Issued by
SAMR, SAC
Issued on
2021-03-09
Implemented on
2021-10-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 12237-2007 Stell ball valves for petroleum petrochemical and allied industries
Language
English
File Format
PDF
Word Count
10500 words
Price(USD)
315.0
Keywords
GB/T 12237-2021, GB 12237-2021, GBT 12237-2021, GB/T12237-2021, GB/T 12237, GB/T12237, GB12237-2021, GB 12237, GB12237, GBT12237-2021, GBT 12237, GBT12237
Introduction of GB/T 12237-2021
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization—Part 1: Rules for the structure and drafting of standardizing documents. This document replaces GB/T 12237-2007 Steel ball valves for petroleum, petrochemical and allied industries. In addition to a number of editorial changes, the following main technical changes have been made with respect to GB/T 12237-2007: a) the applicable scope of the ball valve is expanded, and the pound class requirements, applicable structure and temperature requirements are added (see Clause 1, Clause 1 of the Edition 2007); b) the overpressure requirements of body cavity are added (see 5.1.3); c) the minimum sectional area requirements for connections between valve bodies are modified (see 5.6.8; 5.6.6 of Edition 2001); d) the packing box requirements are deleted (5.12.2 of Edition 2007) ; e) the limit requirements of operating mechanism are added (see 5.12.3); f) the material requirements are modified (see Clause 6; Clause 6 of Edition 2007). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This standard was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of National Technical Committee 188 on Valve of Standardization Administration of China (SAC/TC 188). The previous editions of this standard are as follows: ——It was first issue as GB/T 12237-1989 in 1989, and first revised in 2007; ——This is the second revision. Steel ball valves for petroleum, petrochemical and allied industries 1 Scope This document specifies the structural type, technical requirements, materials, test methods, inspection rules, markings, protection, packaging, storage and transportation of steel ball valves of elastic sealing pair for petroleum, petrochemical and allied industries. This document is applicable to: ——Ball valves at flange connecting end and welded connecting end, with nominal pressure of PN16-PN100, nominal dimension of DN15-DN600, pressure class of Class150-Class600 and nominal dimension of NPS½-NPS 24; ——Ball valves at threaded connecting end and socket welding connecting end, with nominal pressure of PN16-PN140, nominal dimension of DN8-DN50, pressure class of Class150-Class800 and nominal dimension NPS¼ -NPS2; ——-Ball valves with full diameter and reduced diameter. Ball valves with floating ball structure and fixed ball structure; ——Applicable temperature: -46°C to 260°C. Ball valves with metal and ceramic material sealing pair can be implemented by reference to this document. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 150.4 Pressure vessels—Part 4: Fabrication, inspection and testing, and acceptance GB/T 152.4 Fasteners—Counterbores for hexagon bolts and nuts GB/T 196 General purpose metric screw threads—Basic dimensions GB/T 197 General purpose metric screw threads—Tolerances GB/T 228.1 Metallic materials - Tensile testing—Part 1: Method of test at room temperature   GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2: Taper internal and external threads GB/T 9124 (All parts) Steel pipe flanges GB/T 12220 Industrial valves—Marking GB/T 12221 Metal calves—Face to face, end to end, center to face and center to end dimensions GB/T 12223 Part-turn valve actuator attachments GB/T 12224 General requirements for industrial steel valves GB/T 12228 General purpose industrial valves—Specification of carbon steel forgings GB/T 12229 General purpose industrial valves—Specification of carbon steel castings GB/T 12230 General purpose industrial valves—Specification of stainless steel castings GB/T 20801.5 Pressure piping code—Industrial piping—Part 5: Inspection and testing GB/T 26479 Fire test for soft-seated quarter-turn valves GB/T 26480 Valve inspection and testing GB/T 35741 Specification of stainless steel forgings for industrial valves JB/T 106 Valves marking and paint SY/T 7024 Technical code for field hardness test of metal materials used in highly hydrogen sulfide gas field 3 Terms and definitions For the purposes of this document, the following term and definition apply. 3.1 conducting electrostatic design structure to ensure continuous electrostatic conduction among valve body, ball and stem 3.2 fire resisting design structure that can still maintain certain sealing performance requirements when the elastic sealing material is damaged by fire 4 Structural types Typical structure of floating ball valve (one-piece type) is shown in Figure 1, typical structure of floating ball valve (two-piece type) is shown in Figure 2, and typical structure of fixed ball valve is shown in Figure 3. Keys of index numbers: 1——valve body; 5——ball; 9——packing restrainer; 2——valve seat gland; 6——stem; 10——screw; 3——seal ring of valve seat gland; 7——stem packing; 11——handle. 4——seal ring of valve seat; 8——packing bushing; Figure 1 Schematic diagram for typical structure of floating ball valve (one-piece type) Keys of index numbers: 1——left valve body; 6——ball; 11——packing bushing; 2——stud; 7——stem; 12——packing restrainer; 3——nut; 8——stem thrust gasket; 13——screw. 4——valve body; 9——valve body gasket; 5——valve seats; 10——packing; Figure 2 Schematic diagram for typical structure of floating ball valve (two-piece type) Keys of index numbers: 1——valve body; 7——lower stem; 13——screw. 2——stud; 8——upper stem; 14——lower stem end cover; 3——nut; 9——seal ring; 15——seal ring; 4——left valve body; 10——packing; 16——bolt. 5——valve seats; 11——packing bushing; 6——ball; 12——packing restrainer; Figure 3 Schematic diagram for typical structure of fixed ball valve (three-piece type)
Contents of GB/T 12237-2021
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Structural types 5 Technical requirements 5.1 Pressure-temperature rating 5.2 Structure length 5.3 Connecting end 5.4 Dimension of ball runner 5.5 Valve body 5.6 Connection between valve bodies 5.7 Anti-dropping structure of stem 5.8 Stem structure 5.9 Ball 5.10 Packing gland and bolts 5.11 Conducting electrostatic design 5.12 Operating mechanism 5.13 Fire resisting design 5.14 Non-destructive test 5.15 Pressure test of ball valve 5.16 Ordering requirements 6 Materials 6.1 Ball valve housing 6.2 Ball and valve seat 6.3 Stem 6.4 Connecting studs and bolts between valve bodies 6.5 Connecting bolts between packing gland and bonnet 6.6 Sealing materials 6.7 Packing sleeve and packing plate 6.8 Plug screw 6.9 Handle or handwheel 6.10 Hydrogen sulfide resistance 7 Test methods and inspection rules 7.1 Test methods 7.2 Inspection rules 8 Marking 8.1 Marking contents 8.2 Marking on valve body 8.3 Markings on the plate 8.4 Other markings 9 Protection, packaging, storage and transportation Annex A (informative) Order contract data sheet
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Keywords:
GB/T 12237-2021, GB 12237-2021, GBT 12237-2021, GB/T12237-2021, GB/T 12237, GB/T12237, GB12237-2021, GB 12237, GB12237, GBT12237-2021, GBT 12237, GBT12237