Air-Operated Double Diaphragm Pumps: Versatile and Reliable Solutions for Handling Challenging Fluids Across Industries

Aug,29,2025

A double diaphragm pump is a positive displacement pump that utilizes two flexible diaphragms and check valves to move liquids efficiently. Its design is well-suited for handling liquids containing solid particles, viscous substances, or slurries, making it a reliable and flexible choice for various industries.

GODO's Air Operated Double Diaphragm Pump uses compressed air as a power source and can handle a wide range of low to medium viscosity liquids, including those with large particles, without damage. It is also capable of running dry without failure.

These pumps are known by several names depending on the industry or application, such as ink or paint diaphragm pump, or pneumatic double diaphragm pump. Despite the different names, their construction and operating principles are similar, with main differences lying in the materials used and noise reduction capabilities.

Double diaphragm pumps are widely used across many fields:

  • Food and beverage industry: for pumping flavorings, fish sauce, chili sauce, and soft drinks.
  • Oil and gas industry: for transferring diesel oil and fuel.
  • Chemical industry: for handling corrosive liquids like acids, glues, and polymers.
  • Ceramic industry: for pumping slurry and spraying enamel.
  • They are also effectively used in paint, plastic, and ink production.

When selecting a double diaphragm pump, consider the following:

  • Pump body and diaphragm material: ensure compatibility with the liquid for durability and performance.
  • Fluid and environmental temperature: choose a pump that can withstand high temperatures or harsh environments if needed.
  • Hygienic standards: for food or medical applications, select stainless steel pumps with smooth surfaces.
  • Replacement parts: prioritize pumps with readily available and reasonably priced components.
  • Usage needs: select a pump that matches capacity and purpose, rather than the most expensive or highest-capacity model.
GODO