MT/T 490-1995 Product quality classification for mining hydraulic plunger pump

GB/T 2346-2003 Fluid power systems and components-Nominal pressures GB/T 2347-1980 Hydraulic fluid power—Pumps and motors—Geometric displacements GB 2353.1-1994 Hydraulic fluid power—Positive displacement pumps and motors—Dimensions and identification code for mounting flanges and shaft ends—Part 1:Two-and four-hole flanges and shaft ends GB/T 2878-1993 Fluid power systems and components—Ports—Dimensions and design GB/T 2878.1-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 1:Ports GB/T 2878.2-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 2:Heavy-duty stud ends (S series) GB/T 2878.3-2017 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 3:Light-duty stud ends (L series) GB/T 2878.4-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 4:Hex plugs MT/T 489-1995 Testing method for mine hydraulic axial piston pump MT/T 489-2020 Mining hydraulic axial piston pump GB/T 2878.1-2025 Connections for hydraulic fluid power—Ports with truncated housing and stud ends with metric threads—Part 1:Ports with truncated housing