Ulvac PKS-030 User manual

SK00-4330-DI-002-01

No.030402



INSTRUCTION MANUAL

OILSEALED ROTARY VACUUM PUMP

MODEL

PKS-016

PKS-030

PKS-070



Components division

ULVAC, Inc.



Readthismanualbeforeoperationandkeepitatyour

handforimmediatereference

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.

Failuretodosomaycausethewatertofreeze,anddamagetothewaterpipeand/orjackets

mayresult.

-1-

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. Operation ････････････････････････････････････････････････････････････10

9. Ultimate pressure ････････････････････････････････････････････････････ 12

10. Periodical checking ･･･････････････････････････････････････････････････ 13

11. Oil replacement ･･･････････････････････････････････････････････････････13

12. Vacuum pump oil for low temperatures ･････････････････････････････････ 14

13. Major expendable parts ･･･････････････････････････････････････････････ 15

14. Pump oil characteristics table ･･････････････････････････････････････････16

 SERVICE CENTER

-2-

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. We recommend that you use "ULVOIL-R-7" rotary pump oil specified

by ULVAC for best results. However, any good quality mechanical vacuum pump

oil is suitable with the PKS Series, although we do suggest that you consult with a

vacuum specialist first.

-3-

SPECIFICATIONSFORTHEPKS

Model

Description PKS-016 PKS-030 PKS-070

Displacement ［L/min］1600 3000 7000

6.7×10-1 6.7×10-1 6.7×10-1

*Ultimate Pressure ［Pa］

Ultimate Pressure with

gas-ballast ［Pa］6.7×1016.7×1016.7×101

Power required ［kW］2.2［4-poles］3.7［4-poles］11［6-poles］

Pump revolution ［RPM］425 400 400

Max. water vapor pumping

rate ［kg/hr］2.4 5 9

Oil required ［L］6.5 8 20

Cooling water required [L/min] --- 3 5

Weight (without motor) ［kg］225 380 900

* "Ultimate pressure" is measured by "Mcleod Gauge".

-4-

1.Inspection

When unpacking, check the following items,

1) Is the pump received of the exact model you have ordered?

2) Are the complete accessories present?

2-1) In case you have ordered a motor-less pump, the following items should

be present in the pack:

2-2) In case you have ordered a pump, with motor, the following items should

be present in the pack:

2-1): Motor-less Pump 2-2): Pump with Motor

1.Pump 1.Pump

2.Pump-base 2.Pump-base

(Type: PKS-016 only) (Type PKS-016 only)

3.V-belts 3.V-belts

4.Belt-cover 4.Belt-cover

5. Pulley-cover 5. Pulley-cover

6.Motor-Pulley 6.Motor-Pulley

7.Anchor-bolts 7.Anchor-bolts

8.Pumpoil 8.Motor

9.Pumpoil

3) Visually inspect if there is any damage to the pump and the parts caused by

transportation.

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.

-5-

2.Mounting

1) Set the PKS as near as possible to the vacuum equipment, insuring that

water and exhaust connections can be conveniently made.

2) The PKS should be mounted on a rigid foundation such as a concrete floor,

and made level by shimming or grouting if necessary, and bolted in place.

[Refer to Fig. 7, 8, 9]

Note:Excessiveenvironmentaldust,acidfumes,solventvaporetc.,shouldbe

avoided.



3.OilFilling

[Refer to Fig. 7, 8, 9]

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

~ 6)

The optimum level is 5 mm above the lower line of the window glass while the

pump is running. This level will change slightly after the first few hours of use.

In most cases oil should be added after operating the pump for a short while.

Note:Iftheamountofoilcontainedinthepumpismotappropriate,the

performanceofthepumpwillbeunsatisfactory.

-6-

3) Pour oil into the Oilers. (See Fig. 4 ~ 6)



4.ElectricalConnections

Make all electrical connections in accordance with the following procedures.

1) Connect the power lines to the motor terminals before fitting the belts.

2) 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) 20A

PKS-030 3.7kW (4P) 30A

PKS-070 11kW (6P) 100A

-7-

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.Bothmayfailtooperateifthevoltageislessthan

90%ormorethan110%ofthatrated.

4) Activate the motor and observe the direction of rotation of the motor pulley.

5) An arrow SYMBOL [like this: ] is put on the belt-cover to

indicate the correct rotation direction. If the pump does not rotate in the right

direction, interchange any two of the three-phase leads.

6）Fit V-belts.

5.FittingandAdjustingtheV-belts

1) Never touch the V-belts while the pump is running.

2) At approximately the center of the span, between motor pulley and the pump,

apply 4 to 5 pounds of pressure on the V-belts by hand. If the tension is

correct, the resulting deflection should be about 1.5 cm (〜1/2").

-8-

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.

Tootightorlooseadjustmentisharmfultotheshaft-bearings.Too

looseanadjustmentallowsthebelt-toslipandshortenthelife-time

ofthebelt.



6.VacuumSystemConnection

1) Be sure that the inside of the vacuum equipment, i.e., pipes and vacuum

valves, are clean and free from excessive moisture or liquid, chips, rust, dust,

etc. before you connect the system with the PKS pump.

Caution:Mechanicaltroublewillresultifthepumpbreathsmetalchipsor

visibledust.Also,ifthepumpevacuatesexcessivemoisture,both

theguaranteedultimatepressureandthepump'sinternalmechanism

willbeeffected.Excessivemoisturemaycauseinternalcorrosion.

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