Abaque Peristaltic Hose Pumps

A peristaltic hose pump is a positive displacement pump that moves fluid through a flexible hose by compressing it with rotating shoes or rollers. As the hose is squeezed and released, the fluid is pushed forward without coming into contact with any moving mechanical parts, making these pumps ideal for abrasive, corrosive, viscous, and shear-sensitive fluids.

Yes. A hose pump is a type of peristaltic pump designed for higher flow rates and higher pressures. While the terms are often used interchangeably, “hose pump” usually refers to heavy-duty industrial peristaltic pumps that use reinforced hoses rather than smaller flexible tubing.

Yes. Many peristaltic pumps are designed for continuous operation, provided they are correctly sized for the application and operated within the manufacturer’s recommended pressure, speed, and temperature limits. Regular hose or tube replacement is essential to maintain reliable performance during continuous use.

A peristaltic pump operates by rotating shoes or rollers around a flexible hose or tube. As each rotation compresses the hose, it creates a seal that pushes the fluid forward. Once the shoe or roller passes, the hose returns to its original shape, creating a vacuum that draws more fluid into the pump. This continuous action provides a smooth, controlled flow.

The two main types of peristaltic pumps are hose pumps and tube pumps. Hose pumps use reinforced hoses and are designed for demanding industrial applications involving higher pressures, abrasive slurries, chemicals, and viscous fluids. Tube pumps are typically used for lower-pressure applications such as laboratory, medical, and dosing systems.

Peristaltic pumps are also commonly known as hose pumps, tube pumps, roller pumps, or squeeze pumps. The specific term often depends on the pump’s design and intended application.

Peristaltic pumps can achieve relatively high pressures compared to many other positive displacement pumps. Industrial hose pumps are commonly used in applications requiring high discharge pressures while maintaining gentle handling of the pumped fluid.

A peristaltic pump is a positive displacement pump. It moves a fixed volume of fluid with each rotation, providing accurate, repeatable flow rates and making it well suited for metering, dosing, and transferring challenging fluids.

The maximum pressure depends on the pump design and hose material. Industrial hose pumps can typically generate pressures of up to 16 bar (232 psi), while some specialist models may operate at even higher pressures. Always refer to the manufacturer’s specifications for the exact pressure rating.

Peristaltic pumps generally operate with moderate noise levels. Hose pumps can produce some mechanical noise as the rollers or shoes compress the hose, but modern designs often include noise-reducing features. Noise levels also depend on pump size, speed, and installation.

In most applications, peristaltic pumps do not require back pressure valves because they are self-priming positive displacement pumps that naturally maintain flow. However, certain dosing systems or installations may benefit from back pressure valves to improve dosing accuracy, prevent siphoning, or maintain consistent system pressure.

Peristaltic pumps are known for their low maintenance requirements. The primary maintenance task is periodic replacement of the hose or tube, which is the main wear component; lubricant is generally renewed at the same time as hose or tube replacement. Depending on the pump design, operators may also need to check lubrication, inspect shoes or rollers, and ensure the pump is operating within recommended limits.

Peristaltic pumps offer several advantages, including:

* Gentle handling of shear-sensitive fluids.

* Excellent performance with abrasive, corrosive, and viscous materials.

* No product contamination because the fluid only contacts the hose or tube.

* Self-priming capability and the ability to run dry for short periods.

* Accurate and consistent flow for dosing and metering.

* Low maintenance with only the hose or tube, and lubricant requiring regular replacement.

* Reversible operation for easy line clearing and product recovery.