ZJQ Vacuum Pump

Vacuum Pump
    Overview:
  • ZJQ series air cooled roots pump structure is as shown in the figure: two rotors (two blades or more) in the pump chamber are installed on a pair of parallel shaft, and driven by two wheel gears with 1:1 transmission ratio and make opposite rotation. The two rotors, rotors and inner surface of the casing remain a certain gap, this is benefit for fast rotation. Different with ZJ series common roots pumps, ZJQ series are designed with a reflux port on the side of the casing, this is used to introduce the cooled gas into pump chamber to cool down rotor, so the rotor temperature will be kept within limits, and ZJQ pumps can stand higher differential pressure (as high as 90kPa) without overheating
      • Advantages:
  • They can be used alone or in series, or connected with liquid ring pumps. Vacuum degree reaches 150mbar when it is direct discharged into air Medium vacuum can be realized by connecting in series or with liquid ring vacuum pump. Special structure helps to avoid overheating and overloading in high differential pressure and compression ratio. The dynamic balance test and high precision process machine insure the smooth and quiet running of the product. The balanced mechanical seal makes better sealing effect for the pump. The chamber is oil free, so the pump is suitable to extract common or various special gases. More energy saving compared with other mechanical vacuum pumps.
    • Model Max. speed Max. Speed m3/h Ultimate pressure Rotate speed Inlet port diameter Outlet port diameter (mm) Motor power Weight
    (L/s) (Pa) (r/min) (mm) (kW) (kg)
    ZJQ-70 70 252 15000 2900 80 50 1.5~7.5 190
    ZJQ-150 150 540 13000 1450 100 80 3~18.5 270
    ZJQ-300 300 1080 13000 2900 150 100 5.5~37 400
    ZJQ-600 600 2160 13000 1450 200 150 7.5~75 700
    ZJQ-1200 1200 4230 13000 1450 250 200 11~132 1200
    ZJQ-2500 2500 9000 13000 980 350 300 18.5~250 3000
    ZJQ-3750 3750 13500 13000 1450 350 300 37~350 3000