Progressive Cavity Pumps for Challenging Oil

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A progressing cavity pump is a positive displacement pump employing a helical 'worm' rotor and stator assembly to create temporary chambers to draw fluid into, which 'progress' through the pump resulting in the fluid being expelled through the discharge port. To get more news about magnetic drive pumps accessories, you can visit brysonpump.com official website.
A typical progressing cavity pump features a suction inlet which feeds into an elongated casing. Within this casing sits a helical 'worm' rotor and stator assembly. The rotor helix is shaped off-set to the stator creating cavity spaces in the assembly which are formed by temporary seals as the rotor contacts the surface of the stator. As the rotor begins to move in an eccentric fashion, the cavities form, draw in product and are 'progressed' along the assembly and the product is expelled through the discharge port.
A progressing cavity pump excels when handling highly viscous fluids which are required to be moved long distances (discharge pressure up to 48 bar). Typical fluids may include slurry, mashes, pulps, dough from waste water treatment plants, anaerobic digestion facilities and paper recycling plants. As the pump flow rate is proportional to the speed the pump can be used for the dosing of viscous fluids such as additives and chemicals. Models are available for dosing-type applications, hygienic environments and drum-emptying.

Progressing cavity pumps are available with various geometries, typically in different ratios, which effect the degree of entry of the product into the next cavity and the degree of efficiency and sealing between each cavity. 'Standard' geometry is usually best for thicker material as the pitch allows for the viscosity of the product whereas long geometry with shallow curves and larger surface contact between the rotor and stator provides more efficiency.