Description
DESCRIPTION:
SOGEVAC pumps are designed for pumping of inert gases in the range of rough vacuum, between atmospheric pressure and end pressure of the pump.
When removing condensable vapours, a gas ballast valve must be installed.
SECTORS OF USE:
Pharmaceutical, chemical, cosmetics, food, dietary, medical devices, manufacturing.
MAIN FEATURES:
The SOGEVAC SV 300 are single- stage, oil-sealed rotary vane pumps. The anti-suckback valve, gas ballast valve, exhaust filter, oil return circuit and oil cooling oil are integrated functional elements. The pumps are driven by a directly flanged motor.
The rotor mounted eccentrically in the pump cylinder has three vanes which divide the pump chamber into several compartments. The volume of each changes periodically with the rotation of the rotor. As the rotor rotates, the intake portion of the pumping chamber expands and sucks gas thru the intake port. The gas passes through the dirt trap and the open anti-suckback valve and enters the pump chamber. As the rotor rotates further, the vane separates part of the pump chamber from the intake port. This part of the pump chamber is reduced, and the gas is compressed. At slightly above atmospheric pressure the gas is expelled from the chamber via the exhaust valve.
Oil injected into the pump chamber serves to seal, lubricate and cool the pump. The oil entrained with the compressed gas is coarsely trapped in the oil case by deflection. Then fine filtering occurs in the exhaust filter elements. The proportion of oil in the exhaust gas is thus reduced below the visibility threshold (over 99 % entrapment rate).
Oil trapped in the exhaust filters is returned to the inlet chamber via an oil return line.
To prevent gas flowing at atmospheric pressure from the oil reservoir into the intake port, the oil return line is controlled by a float valve.
The oil cycle is maintained by the pressure difference existing between the oil casing (pressure above or equal atmospheric pressure) and the intake port (pressure below atmospheric pressure). On part of the oil is taken from the oil casing and flows via the oil filter bypass to the bearing points of the rotor and to the pump chamber. The other part of oil injected in the pump does not run through the oil filter bypass.
A fan running on the motor shaft generates the necessary cooling air. The oil is also fed, thru a cooling coil, or in case of water cooled pumps, flows through a water oil heat exchanger controlled by a thermostatic valve.
Model: SV300
Year: 1995
TECHNICAL DATA
Dimensions (LxWxH) mm 1200x700x1140
Weight kg 223
