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Pompetravaini TBAK Series, Integrative Notes To The Operating Manual, Page: 14 / 20

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Pompetravaini TBAK Series Integrative Notes To The Operating Manual Download Page 14

Integrative notes to the operating manual for magnetic coupling centrifugal pumps conforming to the ATEX 94/9/CE directive TCK... - TBK... – TBAK… 

14 

Fig. 8 – SAMPLE OF A SECTION OF PUMP SERIES TCK   

CAN

INTERNAL

 RO

ROR'S

 B

USHINGS

 

INTERNAL MAGNETS

(P

OSS

IBLE AIR

 FL

OW

 IN

LET)

 

TH

E

R

MAL P

R

OB

E

 POSITIO

N

EX

TE

R

N

A

L M

A

G

N

E

TO

S

VA

POR

 EX

IT O

P

ENING

LIQU

ID

 LOO

S

E DRA

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 EXIT)

Summary of Contents for TBAK Series

Page 1: ...INTEGRATIVE NOTES TO THE OPERATING MANUAL FOR MAGNETIC COUPLING CENTRIFUGAL PUMPS CONFORMING TO THE ATEX 94 9 CE DIRECTIVE TCK TBK TBAK ...

Page 2: ...ecessary for safety on use of the centrifugal pumps in a potentially explosive atmospheres Chapter 9 of this booklet must be read understood and countersigned by the persons in charge with the reading and the application of this supplement to the Operator s Manual of the centrifugal pumps POMPETRAVAINI does not assume any responsibility either for the use of this pump in any applications different...

Page 3: ...ning 6 3 1 Dry running 6 3 2 Loosening of the coupling assembly screws 6 3 3 Over power transmission 6 3 4 Functioning with vibrations 7 Operational risks 7 1 Intake of foreign bodies 7 2 Dry running 7 3 Operation against obstruction at the delivery side 7 4 Lubrication 7 4 1 Oil lubrication 7 4 2 Grease lubrication 7 5 Operation with hot liquids 7 6 Operation in presence of cavitations 7 7 Operat...

Page 4: ... and conscientious mode for the kind of application and in the operating conditions specified in the Confirmation of order They may be not safe in case of any malfunction even foreseeable ones ATTENTION The pumps series TCK TBK TBAK generate a strong magnetic field The maximum caution and care must be taken by the possible risk personnel for example carrier of pace maker in charge of use and maint...

Page 5: ...ll satisfy the user s need for information If there is any matter requiring more details please contact POMPETRAVAINI for further explanations Fig 3 EXAMPLE OF SERVICE CARD POSITION Service Card 1 1 ATEX 94 9 EC DIRECTIVE The ATEX 94 9 EC Directive defines that all equipment intended for use in ambient of potentially explosive atmospheres must be classified into Groups and Categories according to ...

Page 6: ... specific ignition temperature which when reached is sufficient to cause a fire or an explosion of the mixture The value of this temperature threshold depends on different factors among which the percentage of air and gas dust fuel present in the atmosphere the ambient pressure the ambient humidity the formation of mixture layers or dust deposits etc All this information is not known to POMPETRAVA...

Page 7: ... Ring lip seal rings splashguards Release of fumes in case of heating Synthetic fibres Tress rings Emission of toxic dust release of fumes in case of heating Paint Outside surface of the pump Release of dust and fumes during operation flammability Protective liquid Inside surface of the pump Irritation of skin and eyes The non observance of the instructions shown in this booklet or in the Operator...

Page 8: ...rried out according to the instructions shown in Chapter 7 under paragraph 7 1 of the Operator s Manual In case of pumps in enbloc version or pumps fitted to the base supplied already with assembled electric motor checking of alignment must be carried out before starting the pump For this purpose follow the instructions shown in Chapter 7 under paragraph 7 2 of the Operator s Manual If the pumps a...

Page 9: ...pling to the electric motor is misaligned may cause trouble to the mechanical sealing system and therefore cause leakage of the liquid pumped In this case the sealing system must be replaced as described in the Instructions for Disassembly and Assembly of the Single stage Centrifugal Pumps Furthermore any run with coupling errors will cause heavy vibrations which might cause seizing or even breaka...

Page 10: ...ried out on the appropriate plate at one side of the base Fig 6 In order to enable the electric continuity between the grounding cable and the pump the paint in the contact area between the plug for the grounding cable and the base plate must be scraped off The point of preparation is put into evidence by a triangle yellow which shows the symbol black of grounding Fig 7 After the connection use an...

Page 11: ...VAINI the instruction Manual supplied by the motor manufacturer is always enclosed The connection of the electric motor must be carried out according to the instruction manual of the motor manufacturer This manual must be carefully preserved together with the one of the pump If the manual for the electric motor is not available when carrying out the connections please contact POMPETRAVAINI 5 4 DIR...

Page 12: ... magnetic coupling 6 1 CHECKINGS ON THE RUNNING The correct running of magnetic coupling pumps ask for a special attention to the coupling qualities that has particularly frail components The pump start must be executed according to the instructions reported in the Operating Manual supplied with the pump An incorrect execution of the pump start up procedure could lead to a mechanical damage of the...

Page 13: ...of the rotor are build of relatively frail material and are assembled with tight assembling tolerances The presence of vibrations could cause impacts or frictions that compromises the life of the coupling system and the pump integrity The installation of a vibrations monitoring system is useful to signal the possibility of a mechanical problem on the pump as a result of hydraulic malfunctioning or...

Page 14: ... conforming to the ATEX 94 9 CE directive TCK TBK TBAK 14 Fig 8 SAMPLE OF A SECTION OF PUMP SERIES TCK CAN INTERNAL ROROR S BUSHINGS INTERNAL MAGNETS POSSIBLE AIR FLOW INLET THERMAL PROBE POSITION EXTERNAL MAGNETOS VAPOR EXIT OPENING LIQUID LOOSE DRAIN OPENING POSSIBLE AIR FLOW EXIT ...

Page 15: ...ified 6 2 3 Functioning with presence of vibrations The pumps with magnetic coupling must NEVER run in presence of vibrations or suffer vibrations during transport storage or any other moment of non running It is recommended to not let the pumps suffer vibrations higher than 1 5 mm sec and in any case NEVER above 2 2 mm sec The magnetic coupling components are assembled with tight tolerances and a...

Page 16: ...s conforming to Group II Category 2 but it is also very much advisable on pumps of Group II Category 3 The installation of a measuring instrument for the out flowing delivery rate from the pump is advisable to prevent operation against any obstruction on the delivery side as described in the following paragraph 7 3 These accessories must be chosen among the ones certified according to the ATEX 94 ...

Page 17: ...e mechanical consequences are high vibrations and the risk of seizing 7 4 LUBRICATION 7 4 1 Oil lubrication The pump must NEVER run without a sufficient quantity of lubricant oil inside of the journal The indications for a correct lubrication are shown in Chapter 13 of the Operator s Manual The bearing of the pump is cooled by the air flow generated by the electric motor for cooling the motor down...

Page 18: ...emperature reached by the pump body For this purpose read carefully the contents of Chapter 6 of this booklet regarding the mechanical sealing system RESIDUAL RISK When the pump is used for pumping liquids at high temperatures its surface temperature practically is equal to the liquid pumped The compatibility between the temperature of the liquid pumped the mechanical features of the pump and the ...

Page 19: ...tion of order for which POMPETRAVAINI has provided the execution the materials used for manufacturing and the test runs which make the pump to be perfectly corresponding to the requirements Therefore the pump MUST NOT be utilised for different applications In any other case please contact POMPETRAVAINI who declines any responsibility for any use different from the foreseen one when the respective ...

Page 20: ...instruction manuals needed for the pump By compiling the table underneath this is to confirm to have read the entire contents of this booklet and of the Operator s Manual for of the centrifugal pumps and to have understood it under all aspects and to be conscientious of all conditions of risk when using the pump and to actuate all the indications for the safest and best use POMPETRAVAINI does not ...

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