- 3 -
2. Outline of the Pump
2.1 Specification
This oil sealed rotary vacuum pump is a rotary vane pump (hereinafter called Gaede type pump)
in which the pump is directly driven by the motor. Since the pump is small, light, and quite
simply constructed, it is easily maintained and repaired.
Table 1 Pump specification
Model G-101D
G-101S
Type
Sliding vane 2stage
Sliding vane 1stage
50Hz 100
Pumping speed
(L/min)
60Hz 120
G.V. Close
6.7
×
10
-1
9.3
Ultimate
pressure
(Pa)
G.V. Open
6.7
-
Standard oil
SMR-100
Oil
Oil amount
(mL)
800 1,200
Inlet port diameter
φ
27(Inlet port of 40
□
Flange can be installed in pump)
Exhaust port
diameter
Mushroom type (Exhaust port of G1size screw can be installed in pump)
Weight
(Kg)
Single phase
23
22
Note 1: The ultimate pressure values in the above table are indicated by a Pirani gauge.
Note 2: Vacuum pump oils have different steam pressures, viscosities, and oil properties depending
on the type. Always use the oil sealed rotary vacuum pump oil specified by us. The use of
other oils will affect the pump’s performance.
Specified oil: SMR-100
Note 3: “G.V.” is an abbreviation for gas ballast valve.
