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INTRODUCTION OF THE KING COBRA™ PERISTALIC HOSE PUMPS

INTRODUCTION OF THE KING COBRA™ PERISTALIC HOSE PUMPS. Sizes Available: 10mm (3/8”) through 102mm (4”). PRINCIPLE. Pulsating flow is generated by the pushing action of shoes on the wall of the elastomeric hose. Shoes are assembled on a rotating wheel.

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INTRODUCTION OF THE KING COBRA™ PERISTALIC HOSE PUMPS

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  1. INTRODUCTION OF THE KING COBRA™ PERISTALIC HOSE PUMPS Sizes Available: 10mm (3/8”) through 102mm (4”)

  2. PRINCIPLE • Pulsating flow is generated by the pushing action of shoes on the wall of the elastomeric hose. • Shoes are assembled on a rotating wheel. • The rotating action of the wheel compresses the elastomeric hose and pushes the fluid being pumped downsteam. • Frictions between shoes and hose are reduced by using a lubricant which also acts as a coolant.

  3. KING COBRA ADVANTAGES • Seal-less construction • Self-priming pump with high suction lift up to 9m (29.5’) of water • Dry-run capable • Abrasive products • Excellent volumetric capacity (dosing) • Particles up to 15% (compressible solids) or 25% (non-compressible solids) of hose I.D. • Reversible pump • Ease of Maintenance

  4. HOSE PUMPS COMPETITORS Allweiler Elro Ragazzini Boyser Iwaki Verder Bredel PCM-Delasco Watson-Marlow Pondorf

  5. HOSE Hose Life Depends On... • Differential Pressure • Rotation Speed • Hose Material • Natural Rubber (N): 6 ; EPDM (E): 3 ; Buna-N (B): 2 • Liquid Temperature • Service (Intermittent/Continous) • Correct Ext DN Rectifying • Correct Shimming

  6. CORRECT SHIMMING • Not enough hose compression = Internal recirculation of fluid, as well as, premature wear of the hose. • Too much hose compression = Unnecessary brake power, and Lower Hose Life • 1mm extra shimming may increase hose compression by 2 (4 to 8 tons)

  7. HOSE LIFE 5840 KING COBRA™ HOSE 4100 4210 3521 2850 2740 1562 1321 1680 1195 952 43 Psi 710 87 Psi 1029 575 130 Psi 398 175 Psi 215 Psi Tests done on KC65 natural rubber hose on water @ 70°F on continuous duty

  8. Bredel SPX40 Hose NR Bredel 60 rpm 7.5 bar-100Psi Continuous Duty Water @ 70°C Bredel Setting Bredel SPX40 Hose NR – “King Cobra” 60 rpm 7.5 bar-100Psi Continuous duty Water @ 70°C King Cobra Setting KING COBRA™HOSE LIFE Bredel Pump w/ Bredel Hose Bredel Pump w/ King Cobra Hose Hose Life 1600 Hours Hose Life 550 Hours Improved life due to improved rectified hose and hose re-enforcement technology

  9. HOW TO SELECTKING COBRA™ PUMPS

  10. PUMP SELECTIONINFORMATION REQUIRED • Fluid Handled • Pumping Temperature • Capacity Required • Vacuum Requirements • Discharge Pressure • Duty Cycle (Start-Stop / Continuous) • Viscosity (fluid behavior) • % Solids • Maximum Particle Size • pH Level or chemical compatibility

  11. UNDERSTANDING KING COBRA™PERFORMANCE CURVES

  12. PUMP SPEED Pump speed is directly associated to vertical axis Example : 40 rpm for 8m3/h (35 gpm)

  13. MOTOR POWER Motor power is found with the intersection between vertical speed axis and motor power curve according to pressure Motor power curve for 5 bar Motor power curve for 7.5 bar Motor power curve for 10 bar Motor power curve for 15 bar Motor power can be read on left vertical axis Example : for 40 rpm @ 5 bar (73 psi), motor power needed = 4 kw for 40 rpm @ 15 bar (218 psi) then motor power needed = 6.5 kw

  14. VISCOSITY LIMITS Maximum viscosity allowed is found with the intersection between vertical speed axis and viscosity curve Max viscosity allowed with vaccum assist viscosity can be read on right vertical axis Max viscosity allowed without vaccum assist Example : maximum viscosity allowed without vacuum assist at 30 rpm = 10,000 cps, max of 13,500 cps with vacuum assist

  15. SERVICE Intermittent Duty =pump is running less than 2 hours and stopped more than 1 hour Continuous Duty =pump is running more than 2 hours or stopped less than 1 hour Dark Grey coloured = Intermittent service zone Light Grey coloured = Continuous service zone Example : at 50 rpm and below 7.5 bar (109 psi), pump can operate continuously above 7.5 bar a (109 psi), and 50 rpm, service must be intermittent

  16. TEMPERATURE LIMITS < 40°C Temperature limits < 70°C Example : under 5 bar (73 psi),and intermittent service, pump is limited to :90 rpm under 40°C (104ºF) and 28 rpm under 70°C (158ºF) Under 15 bar (218 psi) and 70°C, pump is limited to 16 rpm

  17. KING COBRA™SELECTION EXAMPLE Operating conditions : Fluid : Viscous Sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 psi) Service : Continuous

  18. 1. PUMP SELECTION According to the flowrate, only 3 pumps are suitable : KC40, KCX40, KC65 Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

  19. 2. PUMP SELECTION According to the pressure, those 3 pumps are suitable : KC40, KCX40, KC65 Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

  20. 3. PUMP SELECTION According to the service, only 1 pump is suitable : KC65 Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

  21. 4. PUMP SELECTION According to the viscosity, the KC65 is suitable Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

  22. 5. SPEED SELECTION According to the performance curve, pump speed = 35 rpm 7 m3/h (.87 gpm) 35 rpm Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

  23. 6. POWER SELECTION According to the performance curve, motor power = 4.6 kW, you will need a 5.5 kW Motor. 4.6 kW 35 rpm Fluid : viscous sludge Fluid Tp° : 20°C (68ºF) Viscosity : 5000 cps Flow : 7 m3/h (30.8 gpm) Pressure : 10 bar (145 PSI) Service : continuous

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