Product :   Wonchang


Untitled Document


Oil Sealed Rotary
| Dry Running Rotary | Dry Running Rotary Pressured | Manual


Oil Rotary Vane Vacuum Pumps (Model Number :  WOVP-0020  to WOVP-1200)

* It is mandatory that these operating instructions be read and understood prior to the vacuum pump installation and start-up.

Safety :

This vacuum pump is has been manufactured according to the latest technical standards and safety regulations.
If not installed properly or not used as directed, dangerous situations or damage might occur Application :

This vacuum pump is designed for use in the fields of coarse vacuum and can be used to suck off air or dry gases, which are not aggressive, poisonous or explosive.

* Liquid and solid particles must not enter the pump.

* Safety advice : In this operating instruction safety measures are advised  before each step.   It is imperative that these safety
   precautions are  observed

 

CONTENT

                 

1

Technical  Data

2

Principle of Operation

3

Transport and Packing

4

Start-up

5

Electrical Connection

6

Operation Advice

7

Maintenance

 

 Technical  Data

 

Specifications

Type      

Capacity

 Vacuum

 Motor

 Revolution

 Noise

 Weight

  Oil

 

 (l/min)

  (mbar)

  (kW)

  (r.p.m.)

(dB(A))

  (kg)

  (l)

WOVP-

 

 

 

 

 

 

 

0020-UM

    200

   2.0

  0.4

   1740

   59

   20

  0.5

0020-UT

    200

   2.0

  0.4

   1740

   59

   20

  0.5

0040-UM

    400

   0.5

  1.1

   3450

   62

   20

  0.5

0040-UT

    400

   0.5

  0.9

   3450

   62

   20

  0.5

0060-UM

    600

   0.5

  2.0

   1740

   67

   47

  1.5

0060-UT

    600

   0.5

  1.5

   1740

   67

   47

  1.5

0090-UM

    900

   0.5

  2.0

   1740

   67

   53

  1.5

0090-UT

    900

   0.5

  2.0

   1740

   67

   53

  1.5

0120-UT

   1260

   0.5

  2.2

   1740

   70

   72

  2.5

0200-UT

   2000

   0.5

  3.0

   1740

   70

   74

  2.5

0320-UT

   3200

   0.5

  3.7

   1740

   73

  114

  4.0

0350-UT

   3500

   0.5

  5.5

   1740

   73

  140

  5.0

0430-UT

   4300

   0.5

  5.5

   1740

   74

  128

  6.0

0500-UT

   5000

   0.5

  7.5

   1740

   74

  190

  6.5

0800-UT

   8000

   0.5

 

   1740

 

 

 

1200-UT

  12000

   0.5

 

   1740

 

 

 

          

 

 

 

1. Oil separator
2. Inlet flange
3. Oil sight glass
4. Plug
5. Bolt
6. Exhaust valve
7. Rotor vane         

  8. Rotor
  9. Exhaust filter
  10. Exhaust cover
  11. Oil filter
  12. Demister
  13. Oil sump
  14. Service unit

 Principle of Operation


   
 These pumps work according to the rotary vane principle. An eccentrically Installed rotor rotates in the cylinder. The centrifugal force of the rotation pushes the vanes, which glide in slots in the rotor, towards the wall of the cylinder. The vanes separate the sickle-shaped space between rotor and cylinder into chambers. When the chambers are connected with the inlet channel, gas is sucked in, compressed by the next rotation and pushed into the oil separator. The differential pressure constantly causes oil to be passed into the compression chambers. The oil and the medium are then discharged into the oil separator and there separated from the exhaust air by gravity, ademister and the exhaust filter. The oil collects on the bottom of the oil Separator and is then pushed into the compression chamber again (oil circulation). The oil-Free medium is discharged through the exhaust cover plate into atmosphere.

Transport and Packing


    WOVP vacuum pumps pass a rigorous operating test in the factory and are packed carefully to avoid transit damage. The inlet flange and as the case may be, the exhaust are sealed with a plug, so that no dirt can enter the pump during transport. Before start-up these plugs have to be removed.
Please check packing on delivery for transport damage. The pump can be lifted from the packing with a suitable lifting device using the lifting bracket on the pump.

* Pumps are generally shipped without oil operating the Vacuum pump with  out oil will damage the pump.

 

Start-up

    It is essential to observe the following instructions step by step to ensure a safe start-up. start-up may only be conducted by trained specialists.

 

1. Setting-up : The pump must be setup or mounted horizontally on a flat surface. Special mounting is not required, as the ump can be mounted with screws via the threads of the rubber feet of the pump. The following ambient operating
environment must be observed.
Ambient temperature: 12 to 30 8C Ambient pressure = atmosphere In order to avoid over-heating of the pump, an undisturbed fresh air-flow to the pump is necessary.  
   
2. Inlet connection :

The inlet flange Can be connected with a vacuum tight flexible hose or pipe. The mounted pipes should cause no tension on the pump's flanges. If necessary, compensators must be installed. Restriction of the pipes must be avoided  in order not to decrease the displacement of the pump. The nominal diameter of the pipes has to be at least the same as the diameter  of pump's inlet flange. No foreign particles (e.g.solder soot) or liquids may enter the inlet line, as they could destroy the vacuum pump. Restricting devices should not be installed in
the exhaust line. Always connect the exhaust pipe in a manner, so that no condensate can enter the pump (slope. siphon)

 

3. Oil filling : The vacuum pump always leaves the factory without oil operation without oil destroys  the pump! Therefore the pump must be charged with oil before start-up. This is  accomplished by charging the oil through the oil fill plug of the service unit until the oil level reaches the Max-mark on the oil sight glass.



Electrical Connection


    Electrical installation may only be conducted by a specialist

1.
Voltage and frequency on the nameplate must agree with the supply Voltage
2.
The drive motor must be protected against overloads according to  VDE0113
In the case of portable installation of the vacuum pump, the electrical connection must be equiped with cable guides that have the function operation relief
3.
To check the direction of rotation of the pump, flick the ON/OFF Switch.
In case of incorrect direction reverse the polarity of any two of the electrical phases.
Looking at the motor fan cover, the direction of rotation is counter-clockwise

 

 

Operation Advice


1. These vacuum pumps can be used to evacuate air or dry gases, which are not aggressive, poisonous or     explosive.
    In case of doubt, please contact the Manufacturer or distributor

    Attention : Not to be used with aggressive and explosive gases or gas mixtures and fluids.


2. To pump condensable vapours, as gas ballast valve should be installed. The vacuum pump should run for     30     minutes     prior to operation with the inlet connection closed, in order to reach the operating temperature of     75 8C.
    Only at this operating temperature can condensable vapours be transported.
    After use, the pump should be left running for an additional 30 Minutes to clear the oil of condensate


Maintenance


  The vacuum pump must be switched off and Secured against accidental switch-on for all maintenance

1.
The oil level should be checked at least once a day
2.
If the oil level is below the MAX-mark on the oil sight glass, more oil should  be added
Fill with oil until the level reaches the MAX-mark on the oil sight glass
3.

Oil changing and oil fitter changing Oil must be changed after the first 100 hours of operation Further oil
changes depend on operating conditions. The oil must be changed after 500-2000 hours of operation, but at  least semi-annually.  If there is considerable pollution it could be necessary to change the oil more frequently.   

To change the oil, the warm pump must be switched off and ventilated to reach atmospheric pressure. Drain the oil through the oil plug(4)when oil stops running, close the plug and start up the pump again for a few seconds. Reopen the oil drain plug and discharger the remaining oil Refasten the oil drain plug, remove   the oil filter  and  replace it fill with fresh oil through the oil fill plug(5).For oil quantity see nameplate. Used oil      and used oil filter are to be disposed of according to environmental laws.

 

4.
Types of oil : Oils according to tellus #100, lubricating oil group shell must  be used
5.
Monitoring and change of exhaust filter.
The exhaust filter is best monitored using a filter pressure gauge.
This filter pressure gauge can be screwed into the thread of the oil fill plug.
When the measured pressure reaches >0.6 bar(Overpressure), the exhaust  filter (9) has to be changed.    Increased energy intake by the motor could also be the result of soiled exhaust filters. If oil mist escapes from    the exhaust  during the operation of the vacuum pump the exhaust filter must be changed.
When installing a new exhaust filter, a new seal for the exhaust cover plate must also be installed. The wovp    version may discharge oil in case of  continuous operation.
6.
Cleaning of the gas ballast valve.
In case of visible dirt in the gas ballast valve, the sinter must be unscrewed  and cleaned. clean with blast air.
7.
Cleaning of inlet flange To clean the inlet flange screen (2), disconnect the four screws and remove  the inlet     flange.
Take out the screen and clean with blast air
8.

Cleaning of fan covers

Both fan covers should be inspected regularly for dirt. Soiling of the fan  covers prevents cool air intake and may lead to overheating of the vacuum pump.

Spare parts and accessories.


To guarantee safe operation of the vacuum pump, only original spare parts and accessories should be used.    When ordering spare parts and accessories, always state pump specification and serial number please find    the part number in the spare parts list.