Roto : Progressive Cavity Pump
Progressive cavity pump with a helical rotor
Roto Progressive Cavity Pumps are designed to pump ‘tough – to – handle’ fluids with ease in varied industries. The pumping element comprises of a precision machined single external helix metallic rotor, and a double internal helix elastomer stator. Due to the special profile of the rotor and stator set, a sealing line is formed along the axis of the rotor which is maintained at both static and dynamic conditions. As the rotor turns within the stator, these cavities progress from the suction to the discharge end of the pump carrying the fluid. The construction of these pumps is based on the modular concept and comprises of next generation pumping elements i.e. Rotor, Stator, Solid Shaft and Double Sealed Cardan Universal Joints for improved performance and longer service life. These pumps are available in bare shaft and close coupled configuration. Selected pump sizes are available with 6 stages and 8 stages. Options also available with different material grades and shaft sealing.
Performance Criteria
- Capacity: To 420 m3/hr
- Pressure: To 48 bar
- Temperature: To 150°C
- Viscosities: To 3,000,000 cps
Material Options
- Wettable housing components: cast iron, cast stainless steel, fabricated steel, fabricated stainless steel
- Stator: natural, nitrile, high nitrile, EPDM, chloro-sulphonated rubber, fluoroelastomer, AFLAS, HNBR
- Rotor: tool steel, case hardened steel, alloy steel, stainless steel
- Coupling rod: alloy steel, stainless steel
- Shaft: alloy steel, stainless steel
- Other exotic materials: duplex, super duplex, alloy 20, haste alloy
- Rotor surface coatings: ceramic coatings, tungsten carbide, hard chrome plating
- Protective coatings: rubber lining, epoxy coatings
Market Sectors
- Agriculture
- Sugar
- Paper
- Paint, Varnish and Ink
- Mining
- Chemical
Applications
- Sewage, Industrial Effluent, Oil & Gas, Mining, Food & Beverage, Cosmetics, Soaps, Detergents, Pulp & Paper
Models
- Single or multi-stage
- RD Series, RM Series, RL Series, WM Series, KM Series, DM Series