ACMEVAC SALES PVT.LTD

INSTRUCTION - OPERATIONMANUAL

HIGH VACUUM PUMP MODEL: - SSP – 70 D

109,UNIOUE HOUSE, CARDINAL GRACIOUS ROAD, CHAKALA, ANDHERI (EAST), MUMBAI - 400 099.

TEL.:-0091 - 22 - 28381053/28375837 FAX: -0091 - 22 – 28964977

EMAIL: -acmevac@vsnl.com. WEBSITE: - http://www.acmevac.com.

1. PUT OIL IN THE NEW VACUUM PUMP.

2. DO NOT RUN PUMP WITHOUT OIL. 3. CHECK THE CONNECTION OF THE SOLENOID VALVE.

4.ROTATE THE PUMP BY-HAND AFTER REMOVING THE SIDE

5. COVER OF COUPLING HOUSIG BEFORE OPERATION

WARNING

NOTE 1) Following parts of the internal unit assembly are hard chrome plated.

i) Front plate -1 No.} Hard chrome of 25 micron both side faces.

ii) Center, plate -1No.} -Do

iii) End plate -1 No.} - Do

iv) 1st stage cylinder-1No.} -25 micron in I.D.

V) 2nd stage cylinder-1 No.} - Do

2) The solenoid valve suitable for single phase, 220V supply of "AVCON" make

is fitted. The input connection is through step down transformer, which takes

care of 415 to 440 Volts, 3Ø input Supply.Thus no separate connections are

to be made for starting the solenoid valve. Only 3Ø supply of RYB

connection as input connections should be done at motor inlet connectors.

3) Apart from the solenoid valve, a mechanical not return valve is also

fitted in the suction in line.

4) The oil SAE 40 grade or equivalent suitable vacuum oil will be supplied in 3

Containers of 1 liter each for every vacuum pump. These containers are

punt in a separate corrugated Box. This new containers shall be supplied

along with the pump. For lifting purpose two eyebolts are provided on the

frame of the vacuum pump. As shown in the drawing.

THIS INSTRUCTION MANUAL CONTAINS

1. YOUR PUMP - MOTOR SPECIFICATION ON PAGE 1

2. TECHNICAL DATA ON PAGE 2

3. PRINCIPAL OF OPERATION ON PAGE 3-4

4. INSTALLATION PROCEDURE ON PAGE 5-6

5. PROBLAMATIC PARAMETERS A) OIL ON PAGE 7

B) VACUUM ON PAGE 8

C) NOISE ON PAGE 9

6. MAINTENANCE AND PRECAUTION ON PAGE 9-10

7. OVERHAULING ON PAGE 10

8. PART LIST ON PAGE 11

9. SECTIONAL DRAWING ON PAGE 12

,

- 1 -

MODEL

SERIAL NO.

TYPE

VACUUM

DISPLACEMENT

H.P. REOD.

R.P.M.

OIL REOD.

MAKE

TYPE

SERIAL NO.

H.P.

PHASE

R.P.M.

VOLTAGE

MAX. LOAD

ACCESSORIES

PUMP DETAILS

: SSP-70D

: ROTARY VANE TYPE

: 0.2 TORR

: 70 LY.M.MIN.

: 1/2

: 1440

: 2.5 LTRS. APPROX.

MOTOR DETAILS

: BHARA T BIJLEE LIMITED

: TEFC FLANGE MOUNTED

: 1/2

: 3Ø

: 1380

: 415

: 1.12 AMP.

- 2 -

TECHNICAL DATA

1. MATERIAL OF CONSTRUCTION : ALU.LM-4, S.S.304, CAST IRON

2. INLET CONNECTION : KF - 16 NOZZEL

3. EXHAUST CONNECTION : KF -16 NOZZEL

4. COUPLING SIZE : L - 095

5. OIL QUANTITY : 2.5 LITERS

6. OIL SEAL USED : 16Ø X 35Ø X 7 THK.

OPTIONAL ACCESSORIES

1. SOLENOID OPERATED VALVE : 1Ø

2. INLET FILTER : TEFLON

RECOMMENDED SPARES

1. OIL SEAL NO. : 16Ø X 35Ø X 7 THK.

2. EXHAUST V/\LVE / VALVE PLATE . RD - 4016

3. SPRING + PIN FOR VANES - 1 'SET . RD - 4025, RD - 4026

4. GASKET - 1 SET. . RD -4017

- 3 -

PUMP ARRANGEMENT: -

A 'ROTOR 'having two spring tensioned 'VANES 'rotates eccentrically in the 'STATER'.

The stator is provided with 'SUCTIO'N PORT' and specially designed 'EXHAUST

VALVE '. It is enclosed on one side with a 'BLIND END COVER 'and other side is

provided with a direct drive coupling. The complete pump assembly is immersed in an

oil filled' CHEMBER'.

ACCESSORIES'

SOLENOID VALVE:

suction of the vacuum pump, which remains closed normally but when motor gets

switched off, it opens and allows atmosphere air to enter, there by it nullifies the

pressure difference, so backflow of oil from pump to the system will not occur, thus the

sudden power failure is not a problem. Also it acts as the non return valve for the

system. The motor can be switched off whenever it is desired.

manufactured out of S.S.304 is provided to prevent enter of oil mist or dust particles in

to the vacuum pump. Glass window is provided to observe the level of oil and dust

inside the tank. When oil window shows the presence of oil it has to be drain out from

the drain plug provided at the bottom of the tank.

The Solenoid valve electrically operated is provided at the

The Condensate box isCONDENSATE BOX / SUCTION:

- 4 -

OIL SEPERATOR / EXHAUST: The oil separator tank of S.S.304 is

provided after the pump and connected to the exhaust of S.S.304 is provided after the

pump and connected to the exhaust of the pump. The oil which is thrown out from the

pump is collected inside the tank and baffle out to prevent of oil gas mixture to be

exhausted to the atmosphere. The glass window is provided to observe oil level inside

the tank. The oil, which is above the oil level, will be recirculated inside the pump. The

float valve is provided for this purpose. This mechanical float valve gets opened when

oil reaches certain level as connected through piping to inlet of pump. Further the drain

plug is provided to empty the tank manually.

CONNECTIONS: - Connections are of NW-16. These connections are

assures leak proof joint and assembly and disassembly becomes possible.

VACUUM FORMATION: - High vacuum involves pressure lower than 1 mm of

hg. 'ACMEVAC 'rotary high vacuum pumps are of the spring loaded vane (made from

HYLEM) type, oil immersed and oil sealed type.

As the rotor revolved in the stator, process gas is sucked through the suction port.

Compressed by the tensioned vanes in the stator and expelled through the exhaust / valve, thus a continues

Suction - exhaust cycle is initiated. Oil acts as a lubricant as well as a sealant for the internal assembly

'ACMEVAC' rotary high vacuum pumps '0'hen supplied as complete. unit are complete with a motor,

Love Joy Coupling N.R.V. etc. mounted on a sturdy base frame

Gas ballast is a standard feature of all models.

BEFORE STARTING:

1. The pump and the motor when supplied as a unit is complete and prealligned on a

base frame. While installation it is recommended that the base frame be properly

bolted down on a correctly alignment, R.C.C.foundation.

2. Ex. Factory all opening are blanked off. Remove all suck blank flanges, also

ensure that the exhaust gases flow is unimpeded.

3 CHECK and tighten if necessary:

a. Oil tank bolt fitting bolts.

b. Suction nozzle with KF-'16 Coupling and gas ballast cap.

c. Exhaust flanges & KF-16 Coupling.

4. Fill up the oil in the pump oil level in the window provided. The window of the oil

tank at least half covered with oil.

5. CHECK electrical connection of the motor. The direction of rotation should be as

. . per the arrow marked on the pump or clock wise while facing the pump shaft.

6. CONNECT the suction nozzle to your plant by means of suitable large flexible

(Verify) but rigid or non collapsible piping.

7. Fit proper Vapour / liquid traps between pump and system, to avoid damage to

pump and large scale oil contamination.

- 5 -

- 6 -

Your 'ACMEVAC' rotary high vacuum pump is now ready to be Put into use in your

system.

During operation if condensable vapours are to be handled, make use of the gas

ballast. Loosen the gas ballast knob and let the pump run for above ~ hr. so that all

condensable Vapour are pumped out before they condense and contaminated the oil

TO STOP

DO NOT STOP THIS PUMP WHILE IT IS YET CONNECTED TO THE

VACUUMISED SYSTEM SINCE IT WILL RESULT IN BACKFLOW OF OIL FROM

PUMP TO SYSTEM.

To avoid this either use a non return valve or isolate the system from the vacuum

pump, bleed air into the vacuum pump, either by means of the gas ba1last or a relief

valve.

ONLY THEN SWITCH OFF THE MOTOR

OIL is very critical factor in all rotary high vacuum pumps. It is essential that good

Quality vacuum oil be used. Standard available SAE - 30-grade oil is also suitable

1. Strain and filter the oil before use.

2. The oil level window should be at least half filled with oil.

3. The oil level in the chamber will gradually reduced after some operations, since

Oil is being used for lubrication. Check oil level at interval of every 15 days.

- 7 -

IN CASE OIL LEVEL DECREASES AT A FASTER RATE

1) CHECK for leakages through rotor shaft. Change oil seal if necessary.

2) CHECK for leakage through oil drainer. Tightens if necessary.

A SUDDEN DECREASES IN OIL LEVEL indicates back flow of oil from pump to the

vacuum system, due to switching off pump without isolation the pump from the

vacuum system. A non return valve should be included between the pump and the

vacuum system.

AN INCREASE IN OIL LEVEL Indicates of foreign liquid inside. The oil chamber.

Drain off oil from the chamber. Feed a mixture of oil and kerosene (1: 2) through the.

suction nozzle and rotate the pump thought motor fan end shadfly hand to flush the

pump. Repeat the procedure 2 - 3 times clean the oil chamber too and fill with fresh oil

Change the oil once it looses its original colour or its viscosity. Frequency of oil

change will depend on specific application and its degree of contamination.

High vacuum is measured on a MCLOID gauge, which uses mercury. The mercury

should be clean and pure, or else vacuum shown will differ from specified vacuum

- 8 -

1. CHECK UP vacuum gauge with master gauge.

2. CHECK UP vacuum directly at pump intake.

3. CHECK UP all piping and valves for leakages. Apply silicon grease if necessary.

4. CHECK all. 0 'rings and gaskets.

5. CHECK oil for contamination. Clean, pump and oil chamber with Kerosene and

fill up with fresh oil.

6. In case of condensable gases being hand lei. Keep the GAS BALLAST open

above half an hour then close it. Full vacuum should be achieved by than.

7. In a rare case the exhaust valve plate may get displaced such a condition is

noticeable by the highly agitated state of oil when viewed from the oil level

window. To rectify adjust the setting bolt and the valve plate (above 1 HP pumps)

While in the case of pumps less then 1 HP merely tighten the screws which hold

the exhaust valve in place.

IN INSPLITE OF THE MENTIONED PRECAUTIONS AND MEASURE FULL

VACUUM IS NOT ACHIEVED THEN THE PUMP WILL HAVE TO BE EXAMINADE.

BY OUR MAINTENANCE / SERVICE DEPARTMENT.

IN CASE OF VACUUM DROP

- 9 -

ACMEVAC rotary high vacuum pumps have got a unique exhaust valve design due

to which they are operation under normal circumstances.

IN CASE OF ABNORMAL NOISE

- CHECK for loose I missing locking bolt on coupling

- CHECK dismantles the motor & checks the rubber spider. If found spoiled, replace it.

MAINTENANCE & PRECAUTIONS

- CHECK oil level and top up if necessary (every 15 days).

. - CHECK oil is colour and change if necessary but not before cleaning the pump

as per the procedure on page no.

- CHECK rubber spider & replace if necessary.

- CHECK all pump and motor fitting bolts and tighten necessary.

NOISE

- CHECK oil level. If oil is less, a gurgling sound is heard.

. - CHECK for displaced valve plate. for procedure check under 'VACUUM '.

CHECK

If suitable Vapour / liquid traps have been incorporated in the system and the procedure given as to

how to start an? Stop the pump are closely. followed then the

Pumps will give trouble free performance even when continuously used.

- 10 -

- CHECK leakage of oil through shaft seal, replace oil seal if necessary.

OVERHAULING

1. Drain the oil removing the drain plug at the bottom of the oil chamber. Rotary

the pump coupling by hand so that the working parts are also drained off oil.

2. Clean the oil chamber. ,

3. Refit the pump assembly back in the oil chamber.

4. DO NOT ATTEMPT TO OPEN THE PUMP ASSEMBLY TO EXPOSE THE

WORKING PARTS SINCE REFITTING THE SAME REQUIRES

CONSIDERABLE SKILL AND MISFITTING WILL MAKE THE PUMP

IRREPAIRABLE.

5. Change gasket (oil chamber & coupling housing) with suitable on of same

thickness. Refit on base frame and couple to motor and restart for further use.