What is a Progressive Cavity Pump? from buzai232's blog

What is a Progressive Cavity Pump?

A Progressive Cavity Pump is a type of positive displacement pump, which consists of a rotor and stator. The metal rotor drives the stator through the chain and begins to fill the cavities with equal amounts of liquid which then get pushed through the pump outlet. They are a highly robust pumping system that ensure maximum performance and reliability.To get more news about screw pump stator, you can visit hw-screwpump.com official website.

How does a Progressive Cavity Pump work?
The rotor inside the pump rotates within the stator, as it turns, the cavities within the stator are filled with the process media and are carried towards the pump outlet under pressure. The pockets of fluid have a set volume that decides the volumetric flow rate of the pump, this is directly proportional to the rotational speed of the rotor and results in low levels of shearing and little to no pulse.
Are Progressive Cavity Pumps Self Priming?
Progressive cavity pumps do have the added benefit of self-priming capabilities. They cannot however run dry for very long. This is due to the rubber stator needing to be lubricated prior to liquid entering the pump. The Nova Rotas progressive cavity pump version has a suction lift of up to 8m and low NPSHa preventing cavitation occurring inside the pump.
Who are Nova Rotors?
Nova Rotas LogoTapflo UK is proud to have partnered with Nova Rotors SRL, a leading Italian manufacturer of Progressive Cavity Pumps. Founded in 1990 they are now a world-renowned and industry-leading force in the design, manufacture and production of Progressive Cavity Pumps & Wobble Pumps.
Tapflo UK supply Nova Rotor’s Diamond Series which was developed as a modular design to cover numerous models and sizes to meet the requirement for capacities up to 420 m3/hr and discharge pressures up to 48 Bar. The series can be customised to each customer’s requirement and can also be altered to meet changing applications within a business.

DN & JN Flanged Industrial Range
The DN and JN Flanged Industrial range is the basis for all ranges within the Diamond Series; DN covers all close-coupled pumps whilst JN covers all pumps in a long-coupled orientation through the use of a Plug-In Bearing Lantern Bracket. These ranges comply with API 676 requirements and are perfect for high-performance applications due to their reliable and robust design.

Hopper Pumps
Perfect for processing media with elevated viscosity and high solids content, where the DN/X, JN/X ranges might struggle. This range features 7 designs that utilise their own screw and hopper design combinations which provide the facility to process media with solids content up to 18, 28, 35 & 40% in concentration (design combination dependent). They are available in either close or long-coupled orientations with either standard rectangular or customised hoppers to meet individual customer demands.
The DV series are Vertical Progressive Cavity Pumps that have been designed for immersion, with the motor outside of the process media, into wells, tanks, or sumps where the suction lift can be problematic or site restrictions mean it isn’t feasible. To suit various installation requirements, the immersion length is customisable up to 7 m and can include customisable mounting plates or supports as well as a guide cone depending on the installation length. Designed with a protective jacket to prevent corrosion of the stator housing when immersed. Suitable for thin, viscous, and abrasive or aggressive media.