GB/T 25126-2010Large capacity cross-electromagnetic four-way reversing valve (English PDF)
大容量交叉式电磁四通换向阀
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 26, 2010
Implementation date
February 1, 2011
Scope
GB/T 25126-2010 is the English-translated version of 大容量交叉式电磁四通换向阀.
GB/T 25126-2010 is the Chinese standard "Large capacity cross-electromagnetic four-way reversing valve".
Its scope clause reads: 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. Its clauses include normative reference documents; terms and definitions.
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Document preview — GB/T 25126-2010
National Standard of the People's Republic of China
- ICS
- 27.200
- Classification
- J 73
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 terms and definitions
- 3.2 Pilot valve
- 3.3 Main 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
A small valve that opens or closes the movement of the main valve directly.
3.3 Main valve
Can control the flow of the larger valve, its action depends on its pilot valve on and off and carried out.
GB/T 25861-2023 | GB/T 25127.2-2020 | GB/T 25127.1-2020 | GB 25130-2010 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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