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GB/T 7934-2017: Hydraulic two-port slip-in cartridge valves -- Technical requirements
Status: Valid GB/T 7934: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7934-2017 | English | 439 |
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Hydraulic two-port slip-in cartridge valves -- Technical requirements
| Valid |
GB/T 7934-2017
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| GB/T 7934-1987 | English | 159 |
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2 days [Need to translate]
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Hydraulic fluid power. Two-port slip-in cartridge valves cavities. Technical requirements
| Obsolete |
GB/T 7934-1987
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PDF similar to GB/T 7934-2017
Basic data | Standard ID | GB/T 7934-2017 (GB/T7934-2017) | | Description (Translated English) | Hydraulic two-port slip-in cartridge valves -- Technical requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J20 | | Classification of International Standard | 23.100.50 | | Word Count Estimation | 22,287 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | GB/T 7934-1987 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Issuing agency(ies) | General Administration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 | GB/T 7934-2017: Hydraulic two-port slip-in cartridge valves -- Technical requirements---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.
Hydraulic two-port slip-in cartridge valves-Technical requirements
ICS 23.100.50
J20
National Standards of People's Republic of China
Replacing GB/T 7934-1987
Hydraulic two-way plug-in cartridge valve technical conditions
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 technical requirements 2
5 safety requirements 4
6 performance requirements 4
7 Inspection rules 12
8 logo, packaging, transportation and storage 16
9 Marking instructions 16
Appendix A (Normative) Typical symbols 17
References 19
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 7934-1987 "two-way cartridge-mounted hydraulic valve technical conditions," compared with GB/T 7934-1987, the main
Technical changes are as follows.
--- Redefinition of "hydraulic two-way cover-type cartridge valve" terms;
--- Added the necessary normative references;
--- Increased technical requirements (see Chapter 4);
--- Increased safety requirements (see Chapter 5);
--- Increased performance requirements (see Chapter 6);
--- Increasing the inspection rules (see Chapter 7);
--- Added marking, packaging, shipping and storage requirements (see Chapter 8);
--- Added annotation (see Chapter 9).
This standard is proposed by the China Machinery Industry Federation.
This standard by the National Hydraulic Pneumatic Standardization Technical Committee (SAC/TC3) centralized.
This standard was drafted unit. Jinan Boer Power Equipment Co., Ltd., too heavy Yuci Hydraulic Industrial Co., Ltd., Shandong Thai Fung Hydraulic
Limited, Sykes Hydraulic Technology Co., Ltd., Shanghai Bosch Rexroth Hydraulic and Automation Co., Ltd., Shenyang Northeast Power Regulator Technology
Co., Ltd., Beijing Huade Hydraulic Industrial Group Co., Ltd., Shandong Zhongchuan Hydraulic Co., Ltd.
The main drafters of this standard. Li Wenjun, Wang Zhenhua, Liang Yong, meters with columns, Gao Wei Lei, Zhang Kai, Hu Qihui, Zheng Xueming, Lei Li, Yang Xiaodong,
Wang Zhimin, 郇 Qingxiang, Liu Jun, Wang Jinghai.
This standard replaces the standards previously issued as.
--- GB/T 7934-1987.
Hydraulic two-way plug-in cartridge valve technical conditions
1 Scope
This standard specifies the hydraulic two-way cover plate cartridge valve technical conditions, including technical requirements, safety requirements, performance requirements, inspection rules,
Logo packaging requirements and so on.
This standard applies to the hydraulic oil or mineral oil equivalent performance of other liquids as the working medium hydraulic two-way cover plate cartridge valve.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 786.1 fluid drive systems and components graphical symbols and circuit diagrams (GB/T 786.1-2009, ISO 1219-1.2006, IDT)
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without tolerance (GB/T 1804-2000, eqvISO 2768-1.1989)
GB/T 2346 fluid transmission system and components of nominal pressure series (GB/T 2346-2003, ISO 2944.2000, MOD)
GB/T 2877 hydraulic two-way cover cartridge valve installation connection size
GB/T 3098.1 fasteners mechanical properties of bolts, screws and studs (GB/T 3098.1-2010, ISO 898-1.2009, MOD)
General rules and safety requirements for GB/T 3766 hydraulic transmission systems and their components (GB/T 3766-2015, ISO 4413.
2010, MOD)
GB/T 6461 Metallic substrates and metal and other inorganic coatings after corrosion test specimens and specimens of the rating
GB/T 7935 hydraulic components General technical conditions
GB/T 10125 artificial atmosphere corrosion test salt spray test
GB/T 14039-2002 Hydraulic fluid solid particles pollution level code (ISO 4406.1999, MOD)
GB/T 17446 fluid transmission systems and components vocabulary (GB/T 17446-2012, ISO 5598.2008, IDT)
JB/T 5922 hydraulic two-way cartridge valve graphic symbols
Hydraulic parts cleanliness assessment methods and hydraulic parts cleanliness index
Test method for hydraulic two - way cartridge valve
3 Terms and definitions
GB/T 17446 defined and the following terms and definitions apply to this document.
3.1
Hydraulic two-way plug-in cartridge valve hydraulictwo-portslip-incartridgevalves
By the insertion of components, control cover, pilot components, cartridge valve block and other components, the use of slide-in components inserted into the installation of the plug
Install valve spool on the valve hole for the flow direction, pressure and flow of two-way hydraulic valve.
3.2
Insert the component slip-incartridgecomponent
Components consisting of a valve sleeve, a valve plug, a spring, a seal and the like, which are inserted by means of insertion.
3.3
Control cover controlcover
Cover for inserting the component.
Note. Usually, the control cover is machined with control ports, control channels, pin holes, process holes, and mounting surfaces or mounting holes for pilot components.
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