GB 25974.3-2010: [GB/T 25974.3-2010] Powered support for coal mine -- Part 3: The hydraulic control system and valves

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB 25974.3-2010 (Self-service in 1-minute)
Newer / historical versions: GB 25974.3-2010

Preview True-PDF

Scope

This Part of GB 25974 specifies the terms and definitions, classification, requirements,
test methods, inspection rules, marking, packaging and storage of hydraulic control
systems and valves for powered supports for coal mines (hereinafter referred to as
supports).
This Part is applicable to the hydraulic control systems and valves of various coal mine
supports and other equipment with supporting functions, including various hydraulic
control systems, yield valves, pilot check valves, directional valves, shut-off valves, etc.
This Part does not apply to the valves inside the superchargers, columns, jacks (such as
column bottom valves).

Basic Data

Standard ID	GB 25974.3-2010 (GB25974.3-2010)
Description (Translated English)	[GB/T 25974.3-2010] Powered support for coal mine -- Part 3: The hydraulic control system and valves
Sector / Industry	National Standard
Classification of Chinese Standard	D97
Classification of International Standard	73.100
Word Count Estimation	32,340
Date of Issue	2011-01-10
Date of Implementation	2011-06-01
Quoted Standard	GB/T 197-2003; GB/T 321-2005; GB/T 699; GB/T 1184-1996; GB/T 1220; GB/T 1239.1; GB/T 1239.2; GB/T 1239.3; GB/T 1239.4; GB/T 1800.1-2009; GB/T 1804-2000; GBT 2828.1-2003; GB/T 3452.1; GB/T 3452.2; GB/T 3452.3; GB/T 9439; GB/T 9799; GB/T 11352; GB/T 2829-2002; GB/T 13306; GB/T 13319; JB/T 3338.1; MT 76; MT/T 98; MT/T 986
Adopted Standard	EN 1804-3-2001, NEQ
Regulation (derived from)	Announcement of Newly Approved National Standards No. 1 of 2011 (No. 166 overall)
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 Chinese standard specifies the coal mine hydraulic support (hereinafter referred to as stents) hydraulic valve control system and the terminology and definitions, classification, requirements, test methods, inspection rules, marking, packaging and storage. This standard applies to a variety of coal with stents and other devices with support function hydraulic control systems and valves, including hydraulic control system, safety valve type, pilot operated check valves, valve type, valve etc.. This standard does not apply to booster, columns and jack internal valve (such as column bottom valve).