Oil Rotary Vacuum Pump GHD Series

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.

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.

Specifications

 Unit GHD-031AGHD-101A
  50Hz60Hz50Hz60Hz
Actual pumping speed
L/min3036100120
Ultimate pressure※1
Pa0.67
Motor※2
 Single phase, 100~120V, 100W, 2P,Capacitor run
Single phase, 200~240V, 100W, 2P,Capacitor run
Single phase,100V,300W,2P,Capacitor run
Full load current
A1.85 (100V), 1.80 (110V)
0.94 (200V), 0.84 (240V)
1.89 (100V), 1.71 (120V)
1.02 (200V), 1.03 (240V)
5.56.3
Oil capacity
mL3701,000
Recommended oil
 R-2
Weight
kg9.322
Inlet port diameter
mmKF-16KF-25
Outlet port diameter
 G3/4G1
Ambient temperature
7~40
External dimensions
mm120(W)×288.5(L)×163(H)150(W)×413.5(L)×234.5(H)
※1:Ultimate pressure is measured by Pirani gauge.
   (In the case of measurement by McLeod gauge, the value is lower by an order of magnitude for pumps with an Ultimate pressure of 1.3 Pa or less.)

※2:Power supply plug and Power supply code are not included.

Corresponding certificate/Voltage

ModelApplicable standardCE
Declartion of confirmity

100V

115~120V

200V

220~240V
GHD-031
GHD-031ATUV、cTUVus
GHD-031BTUV、cTUVus
GHD-101ATUV、cTUVus
GHD-101BTUV、cTUVus
GHD-101CTUV、cTUVus
GHD-101DTUV、cTUVus

●:Standard、○:Option、-:Not Available
※TUV Certification: A high-quality product that complies with European standards as assessed by an international third party that conducts product safety testing and certification.
※cTUVus Certification: A high quality product that complies with Canadian and US standards as assessed by an international third party that conducts product safety testing and certification.

Caution

  1. Oil is deteriorated with operating, and becomes the factor of performance shortage.
    A decrease and the dirt of oil are confirmed, and please regularly add and replace it.
  2. If operation is performed at high pressure, oil mist is generated at the exhaust side.
  3. There is a risk of explosion. Never block the outlet or operate the pump with equipment mounted at the outlet side that blocks the passage of gas.
    Otherwise, the internal pump pressure increases causing the pump to explode, the oil level gauge to protrude or the motor to be overloaded.
  4. This motor houses an automatic returning thermal protector, which may be activated in case of trouble.
    The motor will restart automatically when the temperature goes down.
    If the thermal protector is activated, switch off the power immediately for safety reason.

Pumping Speed Curve

  • GHD-031A
    curve_ghd031.gif
  • GHD-101A
    curve_ghd101.gif

Dimension / Drawing

GHD-031A
GHD-101A

Optional parts

zu_ghd100_ope.gif

Item
Model
Remarks
Power cable
With 100-120V plug
Unplug preventive hardware
Power cable
100-120V without plug
Unplug preventive hardware
Power cable
200-240V without plug
Unplug preventive hardware
Power cable
200-220V with plug (for Europe)
Unplug preventive hardware
Unplug preventive hardware
100-120V
Single item
Unplug preventive hardware
200-240V
Single item