The standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of hydraulic support valve (hereafter referred as valve) for mining.
The standard is applicable to hydraulic support valve for mining.
2 Normative references
GB 197 General Purpose Screw Threads - Tolerances and Fits (diameter: 1~355mm)
GB 321 Preferred Numbers and Preferred Number Series
JB 3338 Cylindrical Helical Compression Springs for Hydraulic Parts - Technical Conditions
MT 76 Emulsion Oil for Hydraulic Support
MT/T 154.1 Model Compilation and Management of Electromechanical Product for Coal mine
3 Terms
1 Subject Content and Application Scope 2 Normative references 3 Terms 4 Product Classification 5 Technical Requirements 6 Performance Requirement and Test Methods 7 Inspection Rules 8 Inspection Report 9 Marking, Packaging and Storage Appendix A Technical Requirements for Electroplated Coatings of Valve Parts (Supplement) Appendix B Requirements for Plastic Product (Supplement) Additional Information
