Mv6/2; Introduction To Wigam High Vacuum Pumps; General Performance And Technical Data; Gas Ballast Valve - wigam P2S Instrucciones De Uso Y Mantenimiento

1. Introduction to WIGAM high vacuum pumps

Wigam high vacuum pumps are rotary vane type and lubricated by oil injection, single and dual stage, complete
with gas ballast valve to remove residual condensable gases.
Each stage is equipped with a rotor mounted on a shaft, which is directly connected to the electric motor without
joint; in the dual stage pumps, the two rotors are connected to one another in series, in order to reach the best
vacuum possible.
1.1

General performance and technical data

Pump model
Swept volume l/min
Vuoto finale mbar
Nominal power
Rotation rate giri/min
Oil charge
Working temperature
Storage temperature
Weight
Supply*
*Other supplied on request
* Standard supply 230/1/50 or 380/3/50
1.2

Gas ballast valve

Wigam vacuum pumps are equipped with a gas ballast valve (*) (except model P2S), to keep open for about 3
minutes during evacuation; the gas ballast valve allows a good pump starting and prevents polluted vapors from
condensing in the lubricant.

2. Installation

The pump is supplied without oil charge; before its first use, it is necessary to fill the pump with the correct quantity
and type of oil suggested by the manufacturer.
2.1 Oil filling
When filling the oil or checking the oil level, the pump must be turned off.
The pump is supplied without oil charge; before its first use, it is necessary to fill the pumps with the correct quantity
and type of oil suggested by the manufacturer.
A different lubricant reduces the performances and can irreversibly damage its mechanical parts.
A bottle (two bottles for MV12/2 and RV25B) of 500cc mineral oil is supplied with the pump.
To fill the oil into the pump, proceed as follows:
a) unscrew the charging cap (situated on top of the pump)
b) slowly fill in the oil up to the middle of the sight glass (situated on the side of the pump)
c) screw the charging cap
To avoid excessive filling, we suggest to spill the oil into a graduated bottle first; in this way it is easy to check the
correct quantity.
In case of excessive filling, it is necessary to empty the pump and repeat the oil filling procedure.
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2.2 Suction connection

A shorter and wider hose (as well as a straight "path") reduces time to perform evacuation.
On request, the suction connection can be equipped with a solenoid valve (a solenoid valve is standard equipment
on models MV12/2 and RV25B) to prevent the lubricant from flowing back from the pump to the circuit in case of
electric power cut.

2.3 Vapors discharge

The pump can run without any discharge connection; when large volume circuits must be evacuated or in case the
pump is frequently turned on and off, we suggest to replace the standard cap with an oil extracting filter complete
with an oil receiver; the oil discharged during functioning is collected by the filter and drops into the oil receiver.
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P2S DIP401 P2D
42 80 42
6x10 -2 6x10 -2 1x10
W
120 180 120
2.800 2800 2.800
cc
500 210 400
°C
0/+40 0/+40 0/+40
°C
-25/+50 -25/+50 -25/+50
kg
6,5 7,2 6,7
230/1/50 230/1/50 230/1/50
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DIP402

MV6/2

MV12/2
80 150 230
-2 1x10 -2 1x10 -2 1x10 -2
240 300 550
2800 1.450 1.450
300 400 700
0/+40 0/+40 0/+40
-25/+50 -25/+50 -25/+50
8,2 15,10 18,00
230/1/50 230/1/50 230/1/50
RV25B
440
1x10 -4
550
1.450
1.000
0/+40
-25/+50
29,50
**
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