Skip to main content

Positive Displacement Pumps

A positive displacement pump works by causing a fluid to move by trapping a fixed amount, then forcing (displacing) it to the discharge pipe.

Positive Displacement Pumps

These pumps can be used for all types of fluids, including those that are of high viscosity. There are several types of positive displacement pumps including internal gear, external gear, rotary lobe, diaphragm, and progressing cavity. Cullum & Brown can supply any of these pump types to best fit the application requirements. We represent some of the leading manufacturers in this industry, providing you more than one choice for your application. No matter what type of positive displacement pump you desire, we have a solution for you.

boerger positive displacement pump


Rotary Lobe Pumps

graco positive displacement pump


Air Operated Diaphragm Pumps
Peristaltic/Hose pumps

See all Graco Pumps

tuthill positive displacement pump


Rotary Gear
Viscosity Process Pumps
Lubrication Pumps
Magnetically Coupled Gear Pumps

liberty process positive displacement pump

Liberty Process Pumps

Progressive Cavity
Replacement Parts for Moyno & Tarby

berkeley positive displacement pump


Progressive Cavity
Helical Gear

wilden positive displacement pump


Air Operated Diaphragm Pumps