International Processing Trade Fair for Powder, Bulk Solids, Fluids and Liquids

23 - 25 September 2025 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2023
Zoom Image LOGO_Air operated diaphragm pumps

Air operated diaphragm pumps

LOGO_Air operated diaphragm pumps

Air operated diaphragm pumps

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Air-operated diaphragm pumps have long been recognized as the industry's most flexible pumps for handling difficult fluids at relatively low pressures and flow rates.

Because of the wide range of possible installations, diaphragm pumps can be used in numerous applications

Virtually any type of fluid, from highly corrosive acids to highly viscous paints and adhesives to food and beverages, can be pumped.

Features and benefits:

  • Flow rate and head adjustable by air pressure.
  • 100% tested after final assembly for dead space, venting and sealing.
  • ATEX certifications for all versions: conductive plastic pumps are available.
  • Efficient air distribution design: low air consumption.
  • All-plastic air system: robust and corrosion resistant in harsh environments.
  • Special air system: lubricant-free, non-blocking, non-freezing, designed for quiet operation.
  • Pumping aggressive and flammable media, viscous liquids, also with solids or gas.
  • Suitable for use in hazardous areas or areas with high humidity.
  • Completely floodable.
  • Dry running without damage to the pump or system.
  • Problem-free restarting of the pump.
  • Pumps against closed discharge without damage to pump. Diaphragm pump stops when outlet is closed (1:1 ratio of air to outlet pressure).
  • Dry self-priming up to 6 meters.
  • Efficient performance: high flow rates due to optimal housing design.
  • Portable and compact for use in multiple locations, optionally available with trolley.
  • Various connection options due to different suction and pressure connections.
  • Bolted design prevents any leakage and ensures maximum safety.
  • Easy and quick to maintain without the need for special tools.

Air operated diaphragm pumps is assigned to following product groups:


The products and/or services can be used in the following branches of industry.

POWTECH offers concrete solutions for packaging-intensive industries. Industry guide


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