Peristaltic pumps (hose pumps) are designed for transferring difficult-to-pump fluids. A section of hose is progressively pinched and the trapped fluid is moved from the inlet to the outlet. There are no check valves or seals in contact with the process fluid. The only wear component is the hose itself, which is engineered to last 1,000–1,500 hours depending on temperature, pressure and chemical compatibility.
Hoses are multi-layer constructions designed for repeated compression. Most installations are arranged with a suction lift rather than flooded suction to minimize the risk of leakage if a hose eventually fails.
With hose sizes from ⅜″ to 4″ we cover flow rates from a few gallons per hour up to 445 GPM. Because there are no seals, valves or dead corners, these pumps excel at transferring abrasive, caustic, particulate-laden and highly viscous fluids, including effluent and reclaimed materials.
Hose compression is performed by either fixed shoes or rotating rollers.
For more detail see our article on Characteristics of Industrial Peristaltic Pumps and the page on Peristaltic Pump Applications.
Roller design • Low pressure (<100–116 PSI)
Flows up to 211 GPM
Shoe design • High pressure (to 218 PSI)
Flows up to 135 GPM