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SPECIFICATIONS FOR THE PKS

Model

Description

PKS-016 PKS-030 PKS-070

Displacement

［

L/min

］

1600 3000 7000

6.7

-1

6.7

-1

6.7

-1

*Ultimate Pressure

［

］

Ultimate Pressure with
gas-ballast

［

］

6.7

Power required

［

］

2.2

［

4-poles

］

3.7

［

4-poles

］

［

6-poles

］

Pump revolution

［

RPM

］

425 400 400

Max. water vapor pumping
rate

［

kg/hr

］

2.4 5 9

Oil required

［

］

6.5 8 20

Cooling water required [L/min]

---

Weight (without motor)

［

］

225 380 900

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

Содержание PKS-016

Страница 1: ...DI 002 01 No 030402 INSTRUCTION MANUAL OIL SEALED 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 ...

Страница 2: ... to burst Ifapumpislocatedoutside andsubjectedtofreezing temperatures disconnectthewater inlet from its water supply Cooling water in the water pipe and or jackets should be blown out by compressed air Failuretodosomaycausethewatertofreeze anddamagetothewaterpipeand orjackets may result ...

Страница 3: ...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 ...

Страница 4: ...d 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 ...

Страница 5: ...e Pressure Pa Ultimate Pressure with gas ballast Pa 6 7 101 6 7 101 6 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 ...

Страница 6: ... 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 Pump oil 8 Motor 9 Pump oil 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 disconnecti...

Страница 7: ... 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 ...

Страница 8: ... 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 ...

Страница 9: ...han 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 ...

Страница 10: ...earings 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 visibl...

Страница 11: ...B to vent the pump thus preventing oil counter flow within the pump 3 It is advisable to install a metallic flexible connection between the pump intake and vacuum piping to eliminate vibration Caution A wire net i e suction filter is provided within the pump intake to prevent larger solids from entering the pump Please do not remove this wire mesh Note This net should be cleaned periodically accor...

Страница 12: ...ump oil by opening the gas ballast valve after the pump temperature increases sufficiently When gases other than condensable gases are pumped operate the pump with the gas ballast valve closed 8 Operation 8 1 Pump start Recheck the prescribed installation once more Operate the pump in accordance with the following procedures to obtain the best performance of the pump 1 Close the vacuum valve A as ...

Страница 13: ...Close vacuum valve A 2 Stop the motor and vent the pump Open the leak valve B Note Make sure the leak valve is opened when the pump is stopped or in the cage of a power failure prevent the pump and vacuum system from flooding with oil Note Oil circulation Pump oil will be introduced into the filter case through the oil feeding solenoid valve 1 PKS 016 oil flow check Remove the filter body cap Obse...

Страница 14: ... may slightly a depending upon the kind of vacuum gauge used According to the Japan Industrial Standard JIS ultimate pressure is determined by means of a McLeod gauge which is capable of measuring the partial pressure of air only If the ultimate pressure is measured without disconnecting the vacuum equipment the observed pressure may be higher than the specified ultimate pressure of the pump due t...

Страница 15: ...ty It is often the case where the ultimate pressure is not attainable simply because the pump oil is too old It is most important to replace the pump oil if any condensable gases have been pumped or if any sludge is present on the bottom of the oil basin If sludge is present it is necessary to wash it out by repetitive oil changes Please replace oil in accordance with the following procedures 1 Op...

Страница 16: ...ence 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 Caution In high temperature above about 10 ULVOIL R 7 oil should be used ...

Страница 17: ...l2 PKS 030 Parts No See Fig 11 Parts No Description Q ty 22 Bearing No 6410 2 25 Oil seal VC 65885 2 26 Oil seal SC 658812 2 27 Oil seal TC 478012 2 21A O ring JISB 2401 P 50 2 12A O ring JISB 2401 G 130 1 Model3 PKS 070 Parts No See Fig 12 Parts No Description Q ty 19 Bearing No 21313 2 22 Oil seal VC 70955 1 23 Oil seal SC 709513 Vacuum tight type 1 25 Oil seal VC 65886 1 26 Oil seal SC 658812 V...

Страница 18: ... ULVOIL R 7 Component Saturated Hydrocarbon 85 Unsaturated Hydrocarbon 15 Saturated Hydrocarbon 85 Unsaturated Hydrocarbon 15 Molecular weight 400 420 450 470 Specific Gravity at 15 0 89 0 89 Viscosity 37 8 Centi stokes 98 9 40 50 5 7 65 75 7 9 Viscosity 50 Redwood second 80 100 120 50 170 180 60 Pour Point 15 15 Fire Point 210 210 Acid Value mg KOH gr 0 01 0 01 Residual Carborn 0 05 0 1 Vaporized...

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