MT 644-1997
Active
T/ZZB 1930-2020
Active
Group standards
T/ZZB 1930-2020 Mining hydraulic support U-shaped pin type quick connector and its accessories
T/ZZB 1930-2020 Mining hydraulic support U-shaped pin type quick connector and its accessories
Price:
$ 20.00
Basic Information
Standard Code:
T/ZZB 1930-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Mine support equipment
ICS Name:
Other mining equipment
Publish Date:
2020-11-20
Implement Date:
2020-12-01
Scope
Main technical content: This document specifies the terms and definitions, classification, models and basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments of U-shaped pin quick connectors (hereinafter referred to as connectors) and their accessories for mining hydraulic supports. This document is applicable to connectors and accessories in hydraulic piping systems that use ordinary mineral oil and high-water content hydraulic fluids as working fluids.
Development Information
Related Standards
MT 646-1997
Abolished
MT 646-1997 Frictional metal prop
MT 668-1997
Replaced
MT 668-1997 Technical Conditions for Flame-Retardant Steel-Mesh-Core Conveying Belt for Coal Mines
MT 669-1997
Active
MT 669-1997 Technical condition of fire-resistant steel-cable conveyor-belt in coal mining
MT/T 154.7-1997
Active
MT/T 154.7-1997 Model designation of separating equipment for coal
MT/T 660-1997
Active