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MODEL: GHD

MODEL: GHD

Small Oil Rotary Vacuum Pump

The GHD Series of small vacuum pumps is a family of oil-sealed rotary vane pumps designed for a wide variety of applications including use in analytical and laboratory equipment and as a backing pump for the industry leading HELIOT 900 Helium Leak Detector. The GHD is designed with a magnetically coupled motor to eliminate the problem of shaft seal leakage, and improve the life of the motor. Available in multiple sizes to accommodate the precise needs of your application.

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Features

  • Small size but high exhaust speed.
  • Compact size suitable for device integration.
  • The magnet coupling structure eliminates oil leakage from the shaft seal and achieves long life.
  • There is no oil contamination in the vacuum chamber due to the installation of the check valve directly below the intake pipe.
  • Low noise and low vibration.
  • Corresponds to diversification of power cord by power cord inlet and outlet.
  • The exhaust speed is stable due to the installation of the forced oil supply mechanism.
  • Operation from atmospheric pressure is possible.
  • Easy connection with flanged parts and connection by knock pins on internal parts.

Applications

  • Helium leak detector
  • Analytical equipment (GC/MS,ICP/MS,LC/MS)
  • Laboratory experiment

Specifications

Model    GHD-031B  GHD-100D
  Unit  50Hz  60Hz  50Hz  60Hz
Actual pumping speed  L/min  30 36 100 120
Ultimate pressure※  Pa  0.67 G.V. Closed : 0.67 G.V. Open : 6.7
Motor    Single phase, 200 – 240V, 100W, 2P, Capacitor run  Single phase, 220 – 240V
Full load current  A  0.94 (200V)
0.84 (240V)		 1.02 (200V)1.03 (240V)  2.5 2.7
Oil capacity  mL    370   1,000
Recommended oil    R-2
Weight  kg  9.3 22
Inlet port diameter  mm  KF-16  KF-25
Ambient temperature  ℃  7 – 40
Overall dimensions  mm  120(W) × 288.5(L) × 163(H)  150(W) × 413.5(L) × 234.5(H)

 

Pumping Speed Curves

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