Oil Rotary Vacuum Pump

GHD Series

GHD-031A

アルバック

Two-stage / with cord, and switch/with thermal protector

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.

Specification

  Unit 50Hz 60Hz
Actual pumping speed
L/min 30 36
Ultimate pressure※1
Pa 0.67
Motor※2
  Single phase, 100~120V, 100W, 2P,Capacitor run
Single phase, 200~240V, 100W, 2P,Capacitor run
Full load current
A 1.85 (100V), 1.80 (110V)
0.94 (200V), 0.84 (240V)
1.89 (100V), 1.71 (120V)
1.02 (200V), 1.03 (240V)
Oil capacity
mL 370
Recommended oil
R-2
Weight
kg 9.3
Inlet port diameter
mm KF-16
Outlet port diameter
G3/4
Ambient temperature
7~40
External dimensions
mm 120(W)×288.5(L)×163(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

Model Applicable standard CE
Declartion of confirmity

100V

115V

200V

220V

230V
GHD-031
(100~120V)

(100~120V)

(200~240V)

(200~240V)

(200~240V)
GHD-031A TUV、cTUVus
(100~120V)

(100~120V)
GHD-031B TUV、cTUVus
(200~240V)

(200~240V)

(200~240V)

●: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

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.
If operation is performed at high pressure, oil mist is generated at the exhaust side.
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.
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.

Dimension drawing

zu_ghd031e.gif

> CAD data download(DXF)

Pumping Speed Curves

curve_ghd031.gif

Optional parts

zu_ghd031_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
200-220V 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

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