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CJ/T 160-2010: Double check valve backflow prevention assembly
Status: Valid CJ/T 160: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| CJ/T 160-2010 | English | 259 |
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3 days [Need to translate]
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Double check valve backflow prevention assembly
| Valid |
CJ/T 160-2010
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| CJ/T 160-2002 | English | 399 |
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3 days [Need to translate]
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Backflow preventers
| Obsolete |
CJ/T 160-2002
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PDF similar to CJ/T 160-2010
Basic data | Standard ID | CJ/T 160-2010 (CJ/T160-2010) | | Description (Translated English) | Double check valve backflow prevention assembly | | Sector / Industry | Urban Construction Industry Standard (Recommended) | | Classification of Chinese Standard | Q81 | | Classification of International Standard | 23.060 | | Word Count Estimation | 10,148 | | Date of Issue | 2010-01-14 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | CJ/T 160-2002 | | Quoted Standard | GB/T 196; GB/T 1047; GB/T 1048; GB/T 3098; GB 5135.11; GB/T 6739; GB/T 7306.2; GB/T 9286; GB/T 12220; GB/T 12225; GB/T 12227; GB/T 17219; GB/T 17241.6; GB/T 17241.7; GB/T 20878; GB/T 21873; CJ/T 216; JB/T 308; JB/T 7928 | | Adopted Standard | ANSI/AWWA C510-1997, MOD | | Regulation (derived from) | Bulletin of the Ministry of Housing and Urban No. 486; industry standard filing Notice 2010 No. 3 (total 123) | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China | | Summary | This standard specifies the double check valve backflow preventer terms and definitions, structure, product type, materials, requirements, test methods, inspection rules, marking, packaging and storage. This standard applies to works pressure is less than 1. 6MPa, temperature 1 ~ 65 degree water, for engineering pipe sizes DN15 ~ DN400 double check valve backflow prevention device on the production, testing and use. | CJ/T 160-2010: Double check valve backflow prevention assembly---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.
book
People's Republic of China town construction industry standards
Replacing CJ/T 160-2002
Double check valve backflow preventer
2010-01-14 release
2010-06-01 Implementation
People's Republic of China Ministry of Housing and Urban - Rural Development
Foreword
This standard is modified using the American Standard ANSI/AWWAC510-1997 "double check valve backflow preventer" standard.
This standard and ANSI/AWWAC510-1997 local differences are.
--- the US unit of measurement units into China's legal units of measurement;
--- increased the test method.
This standard is a revision of the CJ/T 160-2002 "backflow preventer", which is compared with CJ/T 160-2002 as follows.
--- Change the standard name "backflow preventer" to "double check valve backflow preventer".
--- 1 "range" in the nominal pressure 0.4MPa ~ 2.5MPa, adjusted to the nominal pressure of not more than 1.6MPa; temperature is not higher than
80 ℃ adjusted to temperature 1 ℃ ~ 65 ℃; nominal diameter 10mm ~ 400mm adjusted to nominal size DN15 ~ DN400.
Appendix A of this standard is an informative appendix.
This standard is proposed by the Institute of Standards and Valuation of the Ministry of Housing and Urban-Rural Development.
This standard by the Ministry of housing and urban and rural water supply and drainage products standardization technical committee.
The standard drafting unit. Foshan Nanhai Yongxing Valve Manufacturing Co., Ltd., Watts Valve (Ningbo) Co., Ltd., Beijing Yongquan Teng
Up to Valve Technology Co., Ltd.
The main drafters of this standard. Chen Jianming, Yu Zhi, Cao Mingkang, Tan Yunxiang.
This standard was first published in.2002 and revised for the first time in.2009.
Double check valve backflow preventer
1 Scope
This standard specifies the terminology and definition of the double check valve backflow preventer, the structural form, the product type, the material, the requirements, the test method, the inspection
Rules, signs, packaging and storage.
This standard applies to the delivery of nominal pressure of not more than 1.6MPa, the temperature of 1 ℃ ~ 65 ℃ of water, for the nominal size DN15 ~
DN400 pipe double check valve back to prevent the production, testing and use.
2 normative reference documents
The terms of the following documents are incorporated by reference in this standard and are the terms of this standard. Any reference to the date of the document,
(Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard
Whether the latest version of these files can be used. The most recent version of the reference document that is not dated is applicable to this standard.
GB/T 196 Common thread basic dimensions
GB/T 1047 pipe element DN (nominal size) definition and selection
GB/T 1048 Definition and selection of PN (nominal pressure) for piping elements
GB/T 3098 (all parts) Mechanical properties of fasteners
Automatic sprinkler systems - Part 11. Grooved pipe fittings GB 5135.11
GB/T 6739 Paint and varnish pencil method for determination of film hardness
GB/T 7306.2 55 ° sealed pipe thread - Part 2. Conical internal thread and conical external thread
Test for GB/T 9286 Paints and varnishes
GB/T 12220 Universal valve mark
GB/T 12225 General purpose copper alloy castings - Technical conditions
GB/T 12227 general purpose ductile ductile iron pieces of technical conditions
GB/T 17219 Safety evaluation criteria for drinking water distribution equipment and protective materials
GB/T 17241.6 Integral cast iron pipe flange
GB/T 17241.7 Technical requirements for cast iron pipe flanges
GB/T 20878 stainless steel and heat-resistant steel grades and chemical composition
GB/T 21873 Rubber seals - Specification for interface seals for pipes, drains and sewers
CJ/T 216 Waterproof gate valves for water supply
JB/T 308 valve model preparation method
JB/T 7928 Universal valve supply requirements
3 terms and definitions
The following terms and definitions apply to this standard.
3.1
A two independent check valve series device that prevents reverse flow of pressure water in the pipe.
3.2
The end of the water inlet end to the inlet check valve seat seal between the inner cavity.
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