Wigam DIP, Руководство пользователя и обслуживания

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ENGLISH
User and service manual 13
Introduction to WIGAM high vacuum pumps
High vacuum WIGAM pumps are oil injection lubricate rotary vane pumps , single and dual stage, complete with gas
ballast valve to remove residual condensable gas.
Each stage consists of a rotor mounted on a shaft which is directly connected with the electric motor without joint;
in dual stage pumps, two stages are connected to one another in series, mounted on the same shaft in order to reach
the highest vacuum.
1.1 General performance and technical data
Pump model
DIP251 DIP401 MV3 MV6 DIP252 DIP402 MV3/2 MV6/2 MV12/2 RV25B
Swept volume CFM
1.84 2.82 2.65 5.30 1.84 2.82 2.65 5.30 8.12 15.54
Ultimate vacuum in HG
18x10 -4 18x10 -4 21x10 -4 7x10 -2 1x10 -2 1x10 -2 1x10 -2 1x10 -2 1x10 -2 1x10 -4
Nominal power W
180 180 180 240 240 240 240 300 550 550
Speed RPM
2.900 2800 1.450 1.450 2.900 2800 1.450 1.450 1.450 1.450
Oil charge fl oz
210 210 500 500 300 10,15 400 400 700 1.000
Working temperature
°
F
+32/+104 +32/+104 +32/+104 +32/+104 +32/+104 +32/+104 +32/+104 +32/+104 +32/+104 +32/+104
Storage temperature
°
F
-13/+131 -13/+131 -13/+131 -13/+131 -13/+131 -13/+131 -13/+131 -13/+131 -13/+131 -13/+131
Weight lb
15,88 15,88 27,12 28,22 20,51 18 33,08 33,30 36,69 65,05
Supply *
230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 **
* Other supply upon request
** Standard supply 230/1/50 or 380/3/50
1.2 Gas ballast valve
WIGAM vacuum pumps are equipped with gas ballast valve to keep open 3 minutes during evacuation; gas ballast
valve allows good pump starting and prevents polluted vapor from condensing into lubricant.
2. Installation
Pump is supplied without oil charge; before the pump starts, it is mandatory to fill the pump with the right charge
of oil suggested by the manufacturer (see section "2.1 Oil filling").
2.1 Oil filling
Operate oil filling and level control with pump turned off.
Pump is supplied without oil charge; so, before the pump starts, it is mandatory to fill the pump with the right type
and charge of oil suggested by the manufacturer.
Different lubricant reduces performances or irreversibly damages the pump mechanism.
Mineral oil in 15oz bottle (two bottles for MV12/2 and RV25B models) is provided with pump.
For fill-up proceed as follows:
a)
unscrew charging plug (placed on the upper part of the pump)
b) slowly add the oil up to the middle of sight glass (placed aside the pump)
c) screw charging plug
To avoid excessive filling, manufacturer suggests to spill the oil into a graduated bottle; in that way it is easy to check
quantity.
In case of excessive filling, it is necessary to empty the pump and repeat oil filling procedure.
2.2 Suction connection
Shorter hose length or wider ID (as well as straight path), reduces time to pull a given vacuum level.
On request, the suction connection can be equipped with a check valve or a solenoid valve (solenoid valve is
standard equipment on MV12/2 and RV25B models) to avoid lubricant flows from vacuum pump back to evacuated
circuit in case of electric black out.
2.3 Vapours 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, the manufacturer suggests to replace the standard plug with an oil extracting filter
complete with oil receiver; the oil discharged during functioning is collected by the filter and drops into the oil receiver.
WARNING
Always let the pump discharge connection free; its obstruction can cause dangerous overpressures
inside the pump oil sump.
WARNING
Don’t pollute environment wasting oil; lubricant is a special waste and must be disposed according
to law in force.