Edwards Progressive Cavity Pumps

Principle of operation.
The basic operating principle of a screw pump is based on the change in volume of the sealing chamber formed by the screw and the liner. The mutual meshing between the active screw (usually driven by the prime mover) and the driven screw (rotating in the opposite direction to the active screw) and the close fit with the inner wall of the liner cylinder make a series of sealing spaces between the suction and discharge ports of the pump. With the rotation of the screw, these sealing spaces are formed continuously at the suction end, sealing the liquid in and pushing it along the screw axially to the discharge end, realizing the continuous delivery of liquid.
In summary, Edwards screw pumps have become an important choice for industrial vacuum solutions due to their advanced design, excellent performance and wide applicability. Users can choose the right model of Edwards screw pump according to specific application requirements and process conditions, and carry out regular maintenance and troubleshooting through professional services to ensure long-term stable and efficient operation of the equipment.