T/NJ 1172-2019 tractor hydraulic multi-way directional valve
T/NJ 1172-2019 tractor hydraulic multi-way directional valve
Basic Information
Scope
Scope: This standard specifies the terms and definitions, units and symbols, basic parameters, symbols and markings, technical requirements, test methods, assembly and appearance inspection methods, inspection rules, marking, packaging, and storage of hydraulic multi-way valves for tractors. This standard applies to multi-way valves that use hydraulic oil or other liquids with equivalent performance as the working medium. Main technical content: This standard specifies the terms and definitions, units and symbols, basic parameters, symbols and markings, technical requirements, test methods, assembly and appearance inspection methods, inspection rules, marking, packaging, and storage of hydraulic multi-way valves for tractors. This standard applies to multi-way valves that use hydraulic oil or other liquids with equivalent performance as the working medium.