Screw Pump

Category : Industrial Pump

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A progressive cavity pump is a type of positive displacement pump that is designed to handle extremely tough pumping applications and high viscous fluids. While it is a versatile pump that can handle a variety of jobs, it is perfectly designed for metering chemicals and pumping viscous, abrasive, or shear-sensitive materials. Other terms for progressive cavity pumps include progressing cavity pumps, PC pumps, cavity pumps, and progg cavity pumps.

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Basic Design & Pumping Principle

The pumping element comprises of a precision machined single external helical metallic rotor and a double internal helix elastometer stator. Due to special profile of rotor and stator, a sealing line is formed along the axis of the rotor, which is maintained at static or dynamic condition.

As the rotor turns with in the stator, these cavities progress from suction to discharge end of the pump carrying the fluid.

Advantages

• Lengthy Geometry
• Lower Slider Velocity
• Higher Capacity with lower rotor dia & eccentricity
• Increased Service Life
• Stability in pressure & flow due to longer sealing lines
• Reduced thrust loads on bearing & universal joint
• Reduced vibration, Turbulence, Shear rates & pulsation
• Smooth and even performance
• Improved overall efficiency
• Low NPSH R

Salient Features

• Improved rotor and service geomtery
• Cardan type universal joint
• Convenient inspection windows
• Easy drainage slope
• Sealing housing standardised to ISO 3069 sealing chamber type
• Optional shaft sleeve
• Taper roller bearing
• reversible

Specification

Material of Construction