Industries

Agriculture Chemical Construction Yes Food and Beverage Hire Yes Manufacturing Mining Oil and Gas Power Generation Yes Pulp and Paper Yes Water and Waste

PU Series

Features

  • Vortex impeller
    A vortex impeller is fitted in a wide-opened pump casing. lt allows the pump to handle large solids contained in raw sewage up to 35mm.

  • Lightweight and corrosion-resistant
    Being made of stainless steel and special resin, these pumps are lightweight but corrosion free as well.

  • Dual inside mechanical seal
    The pump is furnished with a dual inside mechanical seal located completely in an oil chamber. This system does not rely on the pumped media for the lubrication and cooling, which increases the reliability of the sealing.

  • Anti-wicking cable entry
    The pump has a rubber moulded anti-wicking block at the cable entry section of the pump. This unique feature protects the motor from the ingress of water that may be caused by damage to the sheath cable.

  • Motor protection device
    A circle thermal protector (CTP) is installed in its motor. lt automatically stops the motor in case of an excessive heat build-up in the motor caused by blockage of the impeller or by other overloading factors.

  • Back pullout design
    Unfastening the bolts between the oil casing and the pump casing allows the body to be separated into the pump section and the motor section with the impeller left in position. This makes the insertion or cleaning of the impeller easier. Pump assembly/disassembly can be done using a Phillips screw driver.

  • Automatic / Auto Alternating Pumps
    PU pumps come with an integral control circuit and two low voltage switches. Auto alternating pumps are used for dual automatic operations without the need of a control panel.

  • Oil Lifter
    Every pump has a built in Oil Lifter design to stabilise and increase life expectancy of the mechanical seal.

  • Motor
    Class E insulation for a dry, squirrel case induction motor, secured in a stainless steel case is used in all PU Pumps.

Applications


  • Transfer of sewage in a packaged small-sewage treatment system
  • Domestic or community sewage lift station
  • Drainage of wastewater at hospitals, hotels, and restaurants, etc
  • Drainage of wastewater that contains miscellaneous foreign matters
  • Transfer of sewage/wastewater in a corrosive environment

Performance Curves

Technical Specifications

Model Curve Number Discharge (mm) Power (kW) Voltage (V) Cable (m) Max flow (L/s) Shut-off (m) Weight (kg) Max solid (mm) Rated current A (240V or 415V)
Standard                    
40PU2.15S 1 40 0.15 240 10 4 5.4 6.6 35 0.6
40PU2.25S-51 2 40 0.25 240 10 3.5 6.7 7.1 35 2.4
50PU2.4S-51 3 50 0.4 240 10 4.5 9.7 7.1 35 3
50PU2.75S-51 4 50 0.75 240 10 5.9 12.5 8.9 35 5.3
40PU2.15 1 40 0.15 415 20 4 5.4 5.8 35 0.6
50PU2.75-51 4 50 0.75 415 20 5.9 12.6 8.3 35 1.7
80PU21.5-51 5 80 1.5 415 20 11.6 16 15.8 35 4
Automatic                    
40PUA2.25S-51 2 40 0.25 240 10 3.5 6.7 7.7 35 2.4
50PUA2.4S-51 3 50 0.4 240 10 4.5 9.7 7.7 35 3
50PUA2.75S-51 4 50 0.75 240 10 5.9 12.5 9.5 35 5.3
50PUA2.75-51 4 50 0.75 415 20 5.9 12.6 8.9 35 1.7
80PUA21.5-51 5 80 1.5 415 20 11.6 16 16.5 46 4
Auto-alternation                    
40PUW2.25S-51 2 40 0.25 240 10 3.5 6.7 7.7 35 2.4
50PUW2.4S-51 3 50 0.4 240 10 4.5 9.7 7.7 35 3
50PUW2.75-51 4 50 0.75 415 20 5.9 12.6 8.9 35 1.7
80PUW21.5-51 5 80 1.5 415 20 11.6 16 16.5 46 4

Dimensions

All dimensions are in mm

Model D H A A1 A2 B B1 W1 W2 d D1 D2 FL1 FL2
Standard                            
40PU2.15S 140 378 225 100 68 85 - 280 70 40 68 72 - -
40PU2.25S-51 162 360 236 115 81 102 90 310 110 40 76 86 - -
50PU2.4S-51 162 360 236 115 81 102 90 325 110 50 76 86 - -
50PU2.75S-51 162 374 236 115 81 102 90 335 110 50 76 86 - -
40PU2.15 140 378 225 100 68 85 - 280 70 40 68 72 - -
50PU2.75-51 162 374 236 115 81 102 90 335 110 50 76 86 - -
80PU21.5-51 196 475 295 145 99 130 - 427 150 80 92 104 - -
Automatic                            
40PUA2.25S-51 173 374 236 115 81 102 90 - - 40 76 97 115 607
50PUA2.4S-51 173 374 236 115 81 102 90 - - 50 76 97 115 607
50PUA2.75S-51 173 388 236 115 81 102 90 - - 50 76 97 115 621
50PUA2.75-51 173 388 236 115 81 102 90 - - 50 76 97 115 621
80PUA21.5-51 - 475 295 145 99 130 -     80 - - - -
Auto-alternation                            
40PUW2.25S-51 173 374 236 115 81 102 90 - - 40 76 97 115 607
50PUW2.4S-51 173 374 236 115 81 102 90 - - 50 76 97 115 607
50PUW2.75-51 173 388 236 115 81 102 90 - - 50 76 97 115 621
80PUW21.5-51 - 475 295 145 99 130 -     80 - - - -

Product Disclaimer: The product information and specifications on this website should be used as a guide only. The customer is responsible for ensuring the capacity and performance of the goods are sufficient and suitable for the customer's purpose. Malcolm Thompson Pumps takes no responsibility for errors or omissions in product features or specifications.