Rotary displacement pump

Rotary displacement pump

Rotary displacement pumps for various flow rates

Rotary displacement pumps are ideal as feed and metering pumps in an extensive range of flow rates. They are often a cost-effective alternative, especially in the food, pharmaceutical, and biotechnology industries, as well as in low pressure requirements.

Rotary displacement pump

Rotary Pumps

Rotary displacement pumps with distinct construction for transferring viscous liquids and slurries. World’s first chemical gear pumps equipped with fine ceramic gears, hose pumps capable of transferring solid substances, tube pumps for multipurpose use from research laboratories to general industrial use, and sanitary type rotary pumps. Iwaki is working on various technical innovations of pumps.

Rotary displacement pump

Rotary pumps

To meet the many challenges in our strategic markets, CIRCOR brings customers a portfolio of pumping products and fluid handling solutions from the world’s leading brands, along with industry knowledge and deep expertise.

Rotary displacement pump

Rotary and Positive Displacement Pumps

To meet the many challenges in our strategic markets, CIRCOR brings customers a portfolio of pumping products and fluid handling solutions from the world’s leading brands, along with industry knowledge and deep expertise.

Rotary displacement pump

A Positive Displacement Pump has an expanding cavity on the suction side and a decreasing cavity on the discharge side. Liquid flows into the pumps as the cavity on the suction side expands and the liquid flows out of the discharge as the cavity collapses. The volume is a constant given each cycle of operation.

Rotary displacement pump

The Differences Between Centrifugal Pumps Vs. Positive Displacement Pumps

Nearly all pumps fall within these two categories, with centrifugal being the most common. However, positive displacement pumps come in a wider variety such as gear, lobe, peristaltic, screw, and many other types of pumps.

Rotary displacement pump

Why Choose LobePro

Selected rotary technologies and air operated piston pumps easily handle highly viscous fluids. Due to high friction losses in centrifugal pumps, their flow rate and efficiency start to drop above 500 SSU. Flow and efficiency in a rotary pump, however, typically increase with viscosity. Positive displacement pumps can handle fluids with viscosities of several million SSU.

Rotary displacement pump

Positive Displacement Pumps

The difference in performance of a centrifugal pump (non positive displacement), compared to a rotary pump and a reciprocating pump is illustrated in Figure 1. Depending on which of these pumps you are dealing with, a small change in the pump’s counter pressure results in differences in the flow.