Positive Displacement Pumps

Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the pump’s outlet. They ensure consistent and reliable flow rates regardless of pressure conditions.

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Common Applications

chemical processing

food and beverage

pharmaceuticals

oil and gas

wastewater treatment

cosmetics

Buying Guide

Positive Displacement Pumps Buying Considerations

  • Determine the pump type based on the fluid's viscosity and particle size compatibility.
  • Assess the required flow rate and system pressure conditions.
  • Evaluate the pump's material to ensure chemical compatibility with the fluid.
  • Consider energy efficiency and total lifecycle costs.
  • Check for maintenance requirements and ease of access to replace parts.

Frequently Asked Questions

What are positive displacement pumps used for?
They are used for applications requiring consistent flow rates, such as in chemical processing and food production.
How do positive displacement pumps differ from centrifugal pumps?
They provide consistent flow regardless of pressure, whereas centrifugal pumps’ flow varies with pressure.
What should be considered when selecting a positive displacement pump?
Considerations include viscosity of the fluid, flow rate requirements, and pressure conditions.
What maintenance is required for positive displacement pumps?
Routine inspection, cleaning, and checking for wear in moving parts are essential for maintenance.