Nova Rotors have designed and manufactured a Vertical Progressive Cavity Pump available in a short and long design to allow the series to be suitable for a range of applications including deep tanks.
The DV range is part of Nova Rotors’ range called the Diamond Series which features a range of Progressive Cavity Pumps. These are characterised by a modular design covering numerous models and sizes enabling capacities up to 420 m³/hr and discharge pressures up to 48 bar. The Diamond Series was designed & built with high modularity in mind so that each element of the pump can be specifically selected based on the application requirements and customisation so that even if the product use varies over time the product can be adapted and upgraded to renewed process specifications. As a result, there are a plethora of options and accessories which when combined enable progressing cavity pumps which can be easily tailored to almost any site requirement.
The DV Vertical Progressive Cavity Pump range has a totally customisable immersion length so can be tailored to the installation requirements. The short version allows only the mounting plate to be used as support during installation, whereas, the long version features a support and guide cone to minimise vibrations and oscillations when being used on deep immersion lengths. Both are delivered in a close-coupled configuration and the Stainless Steel versions feature a protective jacket which prevents corrosion of the stator housing. The suction nozzle has been specifically designed to facilitate optimal priming and passage of the process media into the pump.
The “long” version of the DV Pump is particularly effective for installations such as deep wells and tanks. The pump is supplied with a strong downhole mounting plate and blocking cone which ensures maximum stiffness and minimizes vibrations during operations. The inlet is removable to allow the rotor to be replaces which considerably reduces maintenance time.
The Vertical Progressive Cavity Pump range has been specially designed for immersion into wells, tanks or sumps where the motor is outside of the process media. The pumps are suitable for handling both thin and viscous solutions which can also be abrasive or aggressive.
A Progressive Cavity Pump is defined as a volumetric, self-priming, rotary positive displacement pump. The “conveying” part of the pump consists of 2 elements, namely a rotor & stator. The Rotor is typically manufactured from a metallic material and formed in a single or multiple screw design with a rounded thread, large pitches, considerable length & high eccentricity in relation to its core diameter. The rotor rotates within the stator which is typically elastomeric and embedded with a cavity in the shape of 2 or multiple screws, double threaded and with the same eccentricity as the rotor. As the rotor turns the cavities within the stator are filled with the process media and are carried towards the pump outlet under pressure. As these pockets of fluid have a set volume the volumetric flow rate is therefore directly proportional to the rotational speed of the rotor and results in low levels of shearing and little to no pulse.
Tapflo Group is an independent, family-owned, European manufacturer and global supplier of Industrial Pumps that has been operating for 40 years.
We are a leading manufacturer of Air Operated Diaphragm Pumps, Centrifugal Pumps and other industrial process equipment, operating across 75 countries.
Tapflo UK has been operating since 1998, now working nationally with end-users and pump distributors. We offer a wide pump portfolio to the UK for almost any application and installation, including bespoke pumping systems designed by our in-house Engineering Team.