Ulvac PKS-030 Instruction Manual
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Ulvac PKS-030 Instruction Manual

Oil sealed rotary vacuum pump
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INSTRUCTION MANUAL
OIL SEALED ROTARY VACUUM PUMP
Read this manual before operation and keep it at your
hand for immediate reference
MODEL
PKS-016
PKS-030
PKS-070
Components division
ULVAC, Inc.
SK00-4330-DI-002-01
No.030402

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  • Page 1 SK00-4330-DI-002-01 No.030402 INSTRUCTION MANUAL OIL SEALED ROTARY VACUUM PUMP MODEL PKS-016 PKS-030 PKS-070 Read this manual before operation and keep it at your hand for immediate reference Components division ULVAC, Inc.
  • Page 2 CAUTION: Subjecting this pump to low temperatures (below 4℃) may cause water pipes and/or jackets to burst. If a pump is located outside and subjected to freezing temperatures, disconnect the water inlet from its water supply. Cooling water in the water pipe and/or jackets should be blown out by compressed air.

  • Page 3: Table Of Contents

    Table of Contents 1. Inspection ･･･････････････････････････････････････････････････････････ 4 2. Mounting ････････････････････････････････････････････････････････････ 5 3. Oil filling ････････････････････････････････････････････････････････････ 5 4. Electrical connections ･････････････････････････････････････････････････ 6 5. Fitting and detaching of V-belts ････････････････････････････････････････ 7 6. Vacuum system connection ････････････････････････････････････････････ 8 7. Gas ballast valve ･････････････････････････････････････････････････････ 10 8.
  • Page 4 INTRODUCTION The ULVAC-PKS Series pumps are suitable for industrial use in medium or high vacuum pumping systems. The PKS Series are self-contained rotary, oil sealed piston type units, and are designed for the best possible stability and small floor space, and have well proven reliability.
  • Page 5 SPECIFICATIONS FOR THE PKS Model PKS-016 PKS-030 PKS-070 Description Displacement ［L/min］ 1600 3000 7000 *Ultimate Pressure ［Pa］ 6.7×10 6.7×10 6.7×10 Ultimate Pressure with 6.7×10 6.7×10 6.7×10 gas-ballast ［Pa］ Power required ［kW］ 2.2［4-poles］ 3.7［4-poles］ 11［6-poles］ Pump revolution ［RPM］ Max. water vapor pumping rate ［kg/hr］...

  • Page 6: Inspection

    4) Check for any looseness of screws or nuts, or for any disconnection of parts. Note: Should you have noticed any trouble or damage with the pump or its accessories, please immediately notify our distributor or contact ULVAC's International Department directly. - 4 -...

  • Page 7: Mounting

    1) Remove the “Oil-Filler Cap” (See Fig. 4 ∼ 6) and make sure that the “Oil Drain Valve” is closed. 2) Fill the pump with ULVAC's specified oil (ULVOIL-R-7) until the oil level can be observed at the oil level window attached to the side of the pump. (See Pig. 4...

  • Page 8: Electrical Connections

    1) Connect the power lines to the motor terminals before fitting the belts. Check the fuses at the terminal. The fuses should be rated at the value shown in the following table. Type Motor Fuse PKS-016 2.2 kW (4P) PKS-030 3.7kW (4P) PKS-070 11kW (6P) 100A - 6 -...

  • Page 9: Fitting And Detaching Of V-Belts

    3) Connect "oil feeding-solenoid valve" to the pump line to interlock with the pump. (Refer to Fig. 1) Fig. 1. Standard electrical connection Note: Separate wiring will eventually be, required if you use a motor rated at different line voltage and cycle from those for the solenoid. Make sure the proper voltage and current are supplied to both the motor and the solenoid coil.

  • Page 10: Vacuum System Connection

    3) The belt becomes slightly longer after it has been used. Adjust the tension of the belt once a week after the Start of operation. 4) The adjustment of the belt-tension should be made by shifting the motor base. Tighten adjusting nuts or bolts securely after such adjustments. Caution: Maintenance of proper belt tension is important.
  • Page 11 It is recommendable to install a vacuum valve [A] between the equipntent and the pump. (See Fig. 2) [Fig. 2] Standard vacuum system piping for PKS When the pump stops, close vacuum valve [A] to keep the equipment under vacuum, then open leak valve [B] to vent the pump, thus preventing oil counter-flow within the pump.

  • Page 12: Gas Ballast Valve

    Check the oil-feeding solenoid valve for proper operation. Note: If the pump does not rotate smoothly, do the following; Check the power supply Check the charged oil level. If the problem still persists, contact ULVAC or ULVAC's distributor. - 10 -...
  • Page 13 70℃ at a room temperature of 20℃. If the oil temperature exceed 70℃ when the gas ballast valve is kept closed, some trouble might be suspected. Please stop the pump and contact ULVAC or ULVAC's distributor at once.

  • Page 14: Ultimate Pressure

    [ Fig. 3] 9. Ultimate Pressure "Ultimate Pressure" refers to the lowest attainable pressure of the pump. Therefore, this pressure should be measured under the most favorable conditions. It should be measured, using new pump oil, by means of a vacuum gauge installed at the inlet of the pump;...

  • Page 15: Periodical Checking

    10. Periodical Checking Check the following points periodically. 1) Check for looseness of bolts and nuts. 2) Check to see if the gas-ballast valve is properly operating. Check the wire net on the inlet port and clean it. Check the oil amount circulating and the degree of contamination through the transparent glass on the filter lid.

  • Page 16: Vacuum Pump Oil For Low Temperatures

    12. Vacuum Pump Oil for Low Temperature The specified oil is ULVOIL-R-7. In low temperatures (below about. 10℃) may experience difficulty with starting the pump. Therefore, cheek the following points carefully; belt tension, motor fuse, smoothness of rotation. If the pump still can not be started easily, despite normal behavior the above check points, try using ULVOIL-R-4 oil.

  • Page 17: Major Expendable Parts

    No.6307 (24) Oil-seal VC-40625 (23) Oil-seal SC-406212 (25) Oil-seal SC-355511 (11) O-ring JISB-2401 G-75 O-ring JISB-2401 G-105 Model2: PKS-030 (Parts No.: See Fig. 11) Parts No. Description Q'ty (22) Bearing No.6410 (25) Oil-seal VC-65885 (26) Oil-seal SC-658812 (27) Oil-seal TC-478012...

  • Page 18: Pump Oil Characteristics Table

    14. Pump Oil Characteristics Table (Table-1) shows the characteristics of pump oils. If you could not get the specified oil ULVOIL-R-7, you may use another kind of pump oil having almost the same characteristics as (Table-1). ROTARY VACUUM PUMP OIL [Table - 1] ULVOIL-R-4 ULVOIL-R-7...
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This manual is also suitable for:

Pks-016Pks-070

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