GB/T 25974.3-2010 Active
GB/T 25974.3-2010 Powered support for coal mine—Part 3:The hydraulic control system and valves
Abstract
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 hydraulic supports used in coal mines (hereinafter referred to as "supports").
This part applies to hydraulic control systems and valves of various supports and other equipment with supporting functions used in coal mines, including various hydraulic control systems, safety valves, hydraulic check valves, directional valves, shut-off valves, etc.
This part does not apply to valves inside boosters, columns, and jacks (such as the bottom valve of the column).
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 25974.3-2010 |
| CCS | Mine support equipment |
| ICS | Mining equipment |
| Implement Date | 2011-06-01 |