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GB/T 25126-2010 English PDF

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GB/T 25126-2010: Large capacity cross-electromagnetic four-way reversing valve
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PDF similar to GB/T 25126-2010


Standard similar to GB/T 25126-2010

GB/T 25861   GB/T 25127.1   GB/T 25127.2   GB 25130   

Basic data

Standard ID GB/T 25126-2010 (GB/T25126-2010)
Description (Translated English) Large capacity cross-electromagnetic four-way reversing valve
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J73
Classification of International Standard 27.200
Word Count Estimation 14,174
Date of Issue 2010-09-26
Date of Implementation 2011-02-01
Quoted Standard GB/T 191; GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.3; GB/T 2423.17; GB/T 2624; GB/T 9286-1998; GB/T 14536.1-2008; GB/T 18517; GB 13452.2
Regulation (derived from) National Standard Approval Announcement 2010 No.6 (Total No.161)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the large-capacity cross -type electromagnetic reversing valve (hereinafter referred to as " four-way valve ") terms and definitions, Types and basic parameters, requirements, test methods, inspection rules, signs, packaging and storage. This standard applies to R22, R134a, R407C, R410A refrigerant, etc., as well as the design pressure of less than 4. 5 MPa, nominal cooling capacity (R22) is not less than 15 kW four-way valve, with reference to the use of other refrigerants.

GB/T 25126-2010: Large capacity cross-electromagnetic four-way reversing valve

---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.
Large capacity cross-electromagnetic four-way reversing valve ICS 27.200 J73 National Standards of People's Republic of China Large capacity crossed electromagnetic four - way valve 2010-09-26 release 2011-02-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

Appendix A of this standard is a normative appendix. This standard is proposed by the China Machinery Industry Federation. This standard is national standardization of refrigeration and air conditioning equipment Technical Committee (SAC/TC238). The main drafting unit of this standard. Zhejiang Shou'an Artificial Environment Equipment Co., Ltd., Hefei General Machinery Research Institute. This standard participates in the drafting unit. Zhejiang Sanhua Co., Ltd. The main drafters of this standard. Feng Jianjiang, Wang Xiangrong, Pan Li, Chen Yuzhong. This standard is for the first time. Large capacity crossed electromagnetic four - way valve

1 Scope

This standard specifies the terminology and definition of the large-capacity cross-type electromagnetic four-way valve (hereinafter referred to as "four-way valve"), type and basic parameters, Requirements, test methods, inspection rules, marking, packaging and storage. This standard applies to R22, R134a, R407C, R410A and other refrigerants, and the design pressure is less than 4.5MPa, the nominal cooling capacity (R22) not less than 15kW four-way valve, other refrigerant reference use.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. GB/T 191 Packaging and Storage Icons (GB/T 191-2008, ISO 780..1997, MOD) GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2. Test methods - Test A. Low temperature (IEC 60068-2- 1..1990, IDT) GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2. Test methods - Test B. High temperature (IEC 60068-2- 2. 1974, IDT) GB/T 2423.3 Environmental testing for electric and electronic products - Part 2. Test methods - Test Cab. constant damp heat test (GB/T 2423.3-2006, IEC 60068-2-78..2001, IDT) GB/T 2423.17 Environmental testing for electric and electronic products - Part 2. Test methods Test Ka. Salt mist (GB/T 2423.17- 2008, IEC 60068-2-11. 1981, IDT) GB/T 2624 Measure full flow of fluid with differential pressure devices installed in circular cross-section piping (ISO 5167..2003, IDT) GB/T 9286-1998 Test for paint and varnish paint (eqvISO 2409..1992) GB/T 13452.2 Determination of paint film thickness and varnish (ISO 2808..2007, IDT) GB 14536.1-2008 Automatic control for household and similar use - Part 1. General requirements (IEC 60730-1..2003, IDT) GB/T 18517 refrigeration terminology

3 terms and definitions

GB/T 18517 established and the following terms and definitions apply to this standard. 3.1 An internal piston movement is controlled by gas and electromagnetic means to change the flow of refrigerant gas to achieve refrigeration/heating For the heat pump air conditioning with the valve, which is characterized by the piston flow and the tube on the four takeover in the refrigeration and heating conversion was cross-linked. 3.2 Pilot valve pilotvalve A small valve that opens or closes the movement of the main valve directly. 3.3 Main valve mainvalve Can control the flow of the larger valve, its action depends on its pilot valve on and off and carried out.

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