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TORUS Recessed Impeller Pump

TORUS Recessed Impeller Pump. TORUS Recessed Impeller Pump. Design. 1- protective wear element 2- thick, foot mounted casing with large passage 3- radial vaned open impeller 4- stuffing box/seal housing 5- shaft and sleeve 6- bearings 7- power frame. TORUS Recessed Impeller Pump.

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TORUS Recessed Impeller Pump

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  1. TORUS Recessed Impeller Pump

  2. TORUS Recessed Impeller Pump Design 1- protective wear element 2- thick, foot mounted casing with large passage 3- radial vaned open impeller 4- stuffing box/seal housing 5- shaft and sleeve 6- bearings 7- power frame

  3. TORUS Recessed Impeller Pump Typical Service Characteristics • up to 5% solids • grit or other highly abrasive solids • where severe clogging potential exists

  4. TORUS Recessed Impeller Pump Main Applications • grit • primary sludge • scum

  5. Essential Requirements for Recessed Impeller Pumps on Grit & Sludge Services • solids handling capability/non-clogging • protection of casing in area of maximum wear - sacrificial wear element • wear resistant materials of construction • mechanical design for durability and ease of maintenance • hydraulic efficiency

  6. TORUS Recessed Impeller Pump Key Features To Specify • sacrificial & replaceable wear element • casing wall thickness (typically 1/2” to 1” depending on pump size) • hard metal construction of all wet-end components (typically 550 BHN min. hardness) • back pullout powerframe

  7. Vortex Flow Patterns - Radial Vane Impeller Predetermined Area of Maximum Wear - flow from open radial vanes is directed towards the area around the impeller periphery. SACRIFICIAL WEAR ELEMENT HERE.

  8. Vortex Flow Patterns - Cup Type Impeller Predetermined Area of Maximum Wear - flow from impeller is directed at front of casing. SACRIFICIAL WEAR ELEMENT HERE.

  9. Vortex Flow Patterns - Cup Type Impeller Soft babitting material used to secure hard metal impeller on shaft Cup type impeller with non-machined babitted bore

  10. EDM Process for Milling Keyways in Hard Metal

  11. Torus VS Wemco: Comparison of 4x15 Models • Foot mount VS overhung casing • Rugged powerframe and generous shaft diameter

  12. Torus VS Wemco: Comparison of Impellers Fully recessed radial vaned impeller Semi-recessed cup type impeller

  13. Vortex Pump Impeller Styles Radial vane impeller Cup type impeller

  14. Worn Wemco Volute and Impeller

  15. TORUS Recessed Impeller Pump New York City DEP trial Bowery Bay W.W.T.P., primary sludge and grit Inspection photos after 28,000 hours No sign of scouring or wear on front of casing

  16. TORUS Recessed Impeller Pump Worn TORUS Wearplate and Impeller Wear element absorbed brunt of wear Wear restricted to these two replaceable parts

  17. TORUS Recessed Impeller Pump Hunt’s Point W.W.T.P., New York City Primary Sludge & Grit No scouring on front of casing

  18. TORUS Recessed Impeller Pump New York City DEP trial - Bowery Bay W.W.T.P. Primary sludge and grit • wear concentrated at root of vane • no reduction in vane thickness • vane thickness well preserved • pump out vanes slightly worn but still fully functional • pattern number still fully visible

  19. TORUS Recessed Impeller Pump Replaceable wear element

  20. TORUS Recessed Impeller Pump Back pull out feature

  21. TORUS Recessed Impeller Pump Smith’s Falls W.W.T.P. Grit Slurry Pumps XR3-10

  22. TORUS Recessed Impeller Pump Philadelphia, PA - Southwest W.W.T.P. Vertical Cantilever Primary Sludge Pumps

  23. TORUS Recessed Impeller Pumps Philadelphia, PA - Northeast W.W.T.P. - Scum Pumps - XR6-12 Nansemond, VA W.W.T.P. Scum Pumps - RS3-8-10

  24. TORUS Recessed Impeller Pump Goshen, IN W.W.T.P. Grit Pumps - XR4-10 Grit Cyclone and Classifier

  25. TORUS Recessed Impeller Pump Philadelphia, PA - Northeast W.W.T.P. 22 new XR6-12’s in Digester Pump gallery

  26. TORUS Recessed Impeller Pump Philadelphia, PA - Southwest W.P.C.P. - Digester Sludge Pumps Original non-clog pump One of 53 new TORUS pumps

  27. TORUS Recessed Impeller Pump Wisconsin Tissue Mills - Menasha, WI Recycled Paper Plant - Effluent Treatment Project Mark Weise, Plant Engineer with XR4-10

  28. TORUS Recessed Impeller Pump Wisconsin Tissue Mills - Menasha, WI XR4-10 pumping to Belt Presses

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