Larox Peristaltic Pumps for Transferring (LPP-T) Education, part 1

1. Larox Peristaltic Pumps for Transferring (LPP-T) Education, part 1 The Solution You´ve Been Looking For

2. Merits of Hose Pumps in Slurry Applications General • No packed gland or mechanical seal in contact with pumped medium  no gland water • Only the hose is in contact with the medium • The hose is the only wearing part  easy maintenance • Self-priming in suction-lift duties, high suction capabilities • Positive displacement  exact flow per revolution, dosing duties, no backwards flow • Dry-run capability  can pump air or liquid • Very gentle to pumped medium, does not stir or shear the medium vs. Pumps virtually anything • In mining applications: heavy slurries with high solid content • In general applications: aggressive fluids • In hygienic applications: high viscosity fluids

3. versus LPP-T benefits over conventional hose pumps • Rolling hose contact • Two or more compression elements are replaced with one  Increased flow per hose compression • Frictional sliding shoes are replaced with rolling rotor  no frictional heat limiting pumping speed and disturbing the hose • No power loss due to heating and sliding friction  Lower energy consumption • Reduced total cost of ownership & lower environmental load

4. LPP-T benefits over conventional hose pumps • Adjustment of hose compression to compensate hose wear • In conventional hose pumps the hose wear and needed adjustment has to be guessed when backflow is detected. Patented LPP-T adjustment mechanism senses hose wear when compression is adjusted  Maximised hose lifetime and minimized risk of overcompression • Stepless adjustment • Adjustment based on compression force, not on the measured distance between compression shoes and casing

5. LPP-T benefits over conventional hose pumps • Hose connection • Weak and unreliable hose clamp connection is replaced with strong and tested hose flange connection, familiar from pinch valves • In-line pipe connection • LPP-T design enables in-line connection to the pipeline  reduced need for floor space and simple installation • Low lubrication need • Rolling hose requires only light lubrication  lower operating costs & waste production

6. 4 1 2 3 Mechanical construction • Hose connection • Rolling rotor compressing the hose • Hose compression system • Hose flange connection • Compact gear unit fixing

7. LPP-T sizing • LPP-T is peristaltic hose pump  Flow rate is related directly to the speed • Flow (l/min) = speed [rpm] x Volume/rev [l/rev] • Higher speed  more cycles • Hose life is counted in cycles, process work in hours • LPP-T is capable of producing higher flow range than conventional hose pumps • High peak flows are no problem  it is important to know what is the duration relation between normal and peak flow

8. Drive options and sizing • LPP-T is available with four drive versions • Standard drive unit: helical bevel geared motor • Alternative: helical shaft geared motor • Both above alternatives also as gear units with IEC-flange for motor connection (with or without motor) • Drive is sized individually for every application • Required torque is related to pressure • Required power is related to the torque and speed

9. LPP-T drive control • LPP-T can be delivered with sophisticated control unit • Pumps can be delivered with complete control unit including: • Frequency controller (inverter) • Pressure safe limit • Hose leak detector • Manual/remote speed control • Revolution counter/speed display • Emergency switch, fuses • Control unit can be mounted on the pump casing or it can be delivered separately

10. LPP-T solutions • LPP-T widens the application base even further • Thickener underflows • Paste pumping in paper and coating industry (replacing mono pumps) • Waste pumping and tailing duties in mines • Unreliable operation of existing hose pumps gives immediate change-out possibilities • Replacement of centrifugal units in mining and chemicals industries where seal and glands cause dilution or leakage problems • Expensive centrifugal pumping stages can be replaced with one hose pump with high pressure capability in slurry pumping

11. LPP-T product range • LPP-T pump family consists of six (6) sizes: • DN25, flow up to 2,2 m3/h (10 bar) • DN32, flow up to 3,9 m3/h (10 bar) • DN40, flow up to 7,5 m3/h (10 bar) • DN50, flow up to 11,5 m3/h (10 bar) • DN65, flow up to 20 m3/h (10 bar) • DN80, flow up to 40 m3/h (7,5 bar)

12. LPP-T design rules • Smarter technical solution • Longer hose lifetime through new technical design: “One on One -design” • Frictional forces are minimized  lower energy consumption • Possibility to adjust hose compression • Higher flow capabilities, smaller size pump • Higher flow capability enables selection for smaller pump • Smaller pump, lower energy, maintenance and spare part cost  These features result in reduced total cost of ownership

13. LPP-T design rules • User friendliness • Hose fixing system, patent pending • Faster and reliable hose connection • Faster hose change • Faster and reliable hose compression adjustment (based on measurement) • Limited lubrication needs • Less lubricant to fill and dispose • No lubrication draining when hose compression is adjusted

14. Environmental benefits & lower life-cycle costs • Low energy consumption • Reduced waste production due to: • low maintenance need • low lubrication need • and minimized spare part consumption • Lengthened hose lifetime  These features also reduce the life-cycle costs of the LPP-T pump