11. Technical data
page 30
EN
Page 1: ...Product name Centrifugal pumps Product line PXA PXK Original installation instruction with included operating manual in accordance with EC Machinery Directive 2006 42 EC Version 02 ...
Page 2: ...ocumentation is protected by copyright The photomechanical reproduction copying and distri bution of this documentation or parts thereof by means of processes such as data processing data carriers and data networks is strictly prohibited without the express permission of SKF Lubrication Systems Germany AG We reserve the right to make content and technical changes Service If you have technical quer...
Page 3: ...ition and function 11 5 Installation instruction 12 5 1 Positioning and mounting 12 5 2 Connecting dimensions 14 5 3 Installation of Pipes 14 5 4 Connection of Pipes 14 5 5 Fastening to the Container 14 5 6 Electrical connection 15 5 7 Sense of Rotation 15 Operating manual 16 6 Transport delivery and storage 17 6 1 Pumps 17 6 2 Electronic and electrical devices 17 6 3 General information 17 7 Star...
Page 4: ...up the product is not admissible until it is assured that the machine vehicle or the like in which the product was installed meets the provisions and requirements of the regulations set forth in the EC Directive 2006 42 EC with reference to the EC Directive 97 23 EC concerning apparatus subjected to pressure this product must only be used as intended and according to the notes in the documentation...
Page 5: ...mples below must be observed Such signs must be kept in a legible state Rotational direction arrow Fluid connection label Keywords in safety information and their meanings The responsibility is yours Read this installation instruction thoroughly and pay attention to the safety information Information symbols DIN 4844 2 W000 General risk DIN 4844 2 W008 Voltage DIN 4844 2 W026 Hot surface DIN 4844 ...
Page 6: ...Product name Centrifugal Pump Product line PXA PXK Original installation instruction in accordance with EC Machinery Directive 2006 42 EC ...
Page 7: ...s that could affect safety must be resolved without delay Safety measures corresponding to the parameters of the lubricant supplied must be stipulated The safety mechanisms must not be damaged dismantled or in any way made inoperable nor must they be replaced by parts which have not been expressly approved of by VOGEL In addition to the information provided in the installation instruction all gene...
Page 8: ...g and experience with valid standards conditions accident prevention regula tions and assembly measures They are entitled to carry out the required tasks and to recognize and thus avoid any dangers that might otherwise occur A definition of what constitutes a qualified person and information on the prohibition on allowing work to be carried out by unqualified personnel are stipulated in DIN VDE 01...
Page 9: ...ater Cleaning liquids Acids and bases The following limit values must be complied with when contaminated or highly viscous fluids are involved Max gain size Ø 2mm with PXA PXK 02 04 Ø 3mm with PXA 10 18 Max contamination 50 g m3 bei PXA PXK 02 04 100 g m3 bei PXA 10 18 Max kinematic viscosity 20 mm2 s Check the motor power when the density or viscosity deviates from that of water Temperature range...
Page 10: ...A PXK up to 25bar up to 7bar Size 02 04 10 18 2 m h 4 m h 10 m h 18 m h Number of stages 02 25 Number of active stages Materials G E Cast iron standard stainless steel only PXA PXK 02 04 Seal types B G Split bush Glide ring seal Pump version S V Basic version prepared for extension pipe Immersion depth 185 bis 626 Immersion depth of pump in mm Table 1 Type key Designation PXA 04 02 G B S 185 D 01 ...
Page 11: ...pump shaft bearing and the sealing The pressure connection 4 and the assembly flange 3 for installation on the medium container are likewise part of the connector The pump PXA also features a venting screw 5 near the pressure connection A variable number of pump stages supplies the mediumn that is drawn in at the pump bottom 8 through the intake opening 9 Fig 1 Design of the pumps PXA and PXK 1 Dr...
Page 12: ...he operating and maintenance instructions of the operator must be observed when carrying out all assembly work on machines 5 1 Positioning and mounting Immersion pumps type PXA and PXK are designed for vertical installation inside the medium container If you need a pump that can be installed in a different position please contact your pump supplier Before installing the pump remove packing materia...
Page 13: ...nted in a way that protects it from humidity and vibrations It should also be easily accessible so that all other installa tion work can be carried out without problems Make sure that there is a sufficient amount of circulating air to prevent the excessive heating of the product For information on the maximum permitted ambient temperature see the technical data The product must be installed vertic...
Page 14: ... of the medium in the lines should not be obstructed by sharp bents edge valves and return flaps Unavoidable reductions of the line s cross section must be softened by sloping transitions Sudden changes of the flow direction must be avoided in any case The lines must be seal tight and installed in such a way that air may not be shut in at any point The pipes should always be laid out rising It sho...
Page 15: ...nect the motor according to the electric diagram in the terminal box of the motor If the pump has been stored for a longer period in a humid room the isolation resistance between motor winding and pump housing should be measured At a winding temperature of about 20 C the minimum resistance for low voltage motors is 1 kΩ per Volt rated voltage If the resistance is lower the motor must be dried in a...
Page 16: ...Product name Centrifugal pump Product line PXA PXK Operating manual ...
Page 17: ... veff 0 2 mm s environment We recommend to store the unit in vertical position If stored for longer periods the usability period of the grease in the bearings is reduced If the unit is stored for more than 12 months the condition of the grease must be checked before the unit is taken into operation Also the isolation resistance between motor winding and housing must be measured If the resistance i...
Page 18: ...ning points in order to prevent being hit by escaping fluid Switch on the pump and check the sense of rotation It must agree with the direction indicated by the arrow on the pump housing Open the shut off valve on the pressure side a little allowing the medium to flow through Close the venting screw as soon as fluid drools from the valve Now you can open the shut off valve on the pressure side PXK...
Page 19: ...matic and or hydraulic supply connections For more information see the section General information in this installation instruction If you wish to shut down the product for a longer period of time refer also to the instructions in the section Transport delivery and storage of this installation instruction When placing the product back into operation pay attention to the information in the sections...
Page 20: ... intake filters and screens should be checked regularly for contamination and should be cleaned or replaced as needed Also ensure that the housing of the pump motor remains free from dust foreign objects etc to ensure good heat exchange between motor and ambient air for unhindered surface heat dissipation All electrical connections and lines must be checked regularly for damage and to ensure that ...
Page 21: ...ust be loosened before the pump stages are removed It is accessible from the top after the motor has been removed Fig 4 Loosening the Adapter Sleeve The adapter sleeve 2 fastens the pump shaft 3 To loosen the adapter sleeve lay the pump down on its side Now turn the pump shaft at the pump coupling half until the wrench application surface 4 at the shaft adapter 5 is accessible from the outside Fig...
Page 22: ... the pump housing until stop is reached Then check with your fingers whether the edge of the lowest impeller is on the same height with the edge of the bottom chamber opening If necessary correct the shaft position by turning the locking screw and pushing the shaft forward at the same time The running gap has been adjusted correctly when no difference can be sensed anymore between the edge of the ...
Page 23: ...nt Fig 5 Wrench application surface Fig 3 Sectional drawing of the pump PXA 1 Locking screw 2 Adapter sleeve 3 Pump shaft 4 Wrench application surface 5 Shaft adapter 6 Tie rod 8A Split bush 9A O ring 8B Glide ring 9B Counter ring 1 2 3 4 5 6 8A 9A 8B 9B A B ...
Page 24: ...or Next install the motor To do so first put the pump down resting on its bottom Slide the outer ring of the gear coupling onto the pump coupling half and then put on the motor Fasten the motor at the mounting flange with two bolts tightened to the torque indicated Installing the Pump Upon repair install the pump as outlined in chapter installation page 12 Table 2 Assembly torques Part Wrench Hex ...
Page 25: ...res described here Table 3 Error analysis and remedy Problem Possible cause Remedy Power supply defective Check the power supply Fuse tripped Check the fuse or the motor overload switch Motor overload switch tripped Ensure that the pump shaft can be turned smoothly and evenly the values on the nameplate agree with the local power supply the resistance between winding and housing is at least 2 M Oh...
Page 26: ...cessary Motor overload switch sometimes cuts out Line voltage sometimes too low Ensure that the values indicated on the nameplate agree with the available line supply Select a supply source with continuous voltage Intake opening partly clogged Check the intake opening and clean it if necessary Pump draws in air Check the filling level of the pump and correct it if necessary Pump output not stable ...
Page 27: ... repair work and before making any changes to the system Table 3 contin Error analysis and remedy Problem Possible cause Remedy Air bubble inside pump Vent pump Wrong sense of rotation Correct sense of rotation according to the electric diagram Pump runs but does not supply medium Shut off valve closed Open shut off valve Pump draws in air Check the filling level of the pump and correct it if nece...
Page 28: ...less steel 1 4301 Impeller stailless steel 1 4301 Shaft bearing AL oxide tungsten carbide Secondary seals FKM FPM Tie rod stailless steel r 1 4057 Pump bottom GCI 25 stailless steel 1 4308 Gab bush POM Mechanical seal Carbon SIC FKM FPM Accessoires Material Stainer stailless steel 1 4301 Bottom for extension tube stailless steel 1 4301 Extension tube steel plastic 11 3 Electrical design The drive ...
Page 29: ...s 148mm l 333mm bis 477mm Øm 145mm bis 227mm s 123mm bis 143mm t 143mm bis 626mm Øq 160mm bis 250mm weight 13 1kg bis 45 3kg PXA 10 18 Additional equipmen for extension tube for intake stainer k 120mm bis 197mm l 366mm bis 680mm Øm 162mm bis 320mm s 132mm bis 233mm t 194mm bis 680mm Øq 200mm bis 350mm weight 28 2kg bis 134 3kg ...
Page 30: ...11 Technical data page 30 EN ...
Page 31: ...11 Technical data page 31 EN PXK t 144mm bis 248mm weight 12 2kg bis 14 3kg Additional equipment for extension tube for intake stainer ...
Page 32: ...11 Technical data page 32 EN ...
Page 33: ...12 Notes page 33 EN 12 Notes ...
Page 34: ...12 Notes page 34 EN ...
Page 35: ...y the user to make sure that it is suitable for conveyance in centralized lubrication systems All lubrication systems and components that are manufactured by SKF Lubri cation Systems Germany AG are not approved for use in conjunction with gases liquefied gases gases dissolved under pressure vapours and fluids with a vapour pressure of more than 0 5 bar above normal atmospheric pressure 1013 mbar a...
