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General Description CDZ-D1 Mini Nitrogen Charging Vehicle works as a special N2 supercharging device and charging device of hydraulic bag accumulator, piston accumulator, diaphragm accumulator and other high-pressure vessel of NXQ series. Max N2 pressure is 42MPa. CDZ – X– D1–X 1 2 3 4 1 Code Name: Nitrogen Charging Vehicle 2Nominal Pressure:25, 35MPa 3Reversing Type: Electromagnetic Directional Type 4Inflatable Volume:1.6L,2.5L,4L Model Pm (MPa) Max Pm (MPa) Pump Air supply V (L) Power A (mm) B (mm) C (mm) Weight (kg) Pressure (MPa) Flux (L) CDZ-25D1-1.6L 3 13.5 25 31.5 3.75 1.6 3phase 380V 50Hz 890 520 950 240 CDZ-25D1-2.5L 7.5 2.5 890 520 950 245 CDZ-25D1-4.0L 15 4 1200 640 1200 300 CDZ-35D1-1.6L 35 50 2.68 1.6 890 460 950 240 CDZ-35D1-2.5L 5.37 2.5 890 520 950 245 CDZ-35D1-4.0L 8.95 4.0 1200 640 1200 300 Operating Principle The Nitrogen Charging Vehicle consists of hydraulic system, gas system and electric system. The pressure fluid flows into the pressure cylinder through solenoid directional valve to push the piston move upward(downward) to pressurize the N2 in the pressure cylinder and then flow into the accumulator(or high-pressure Vessel) through holding valve and charging tool. N2 is pressurized to the operating pressure by the reciprocating movement of piston under the effect of limit switch. After that, it stands on its own.