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Double Diaphragm Ink Pumps

The versatility of the double diaphragm pumps is well known. They are suitable for a wide variety of inks, varnishes, coatings, adhesives and laminates. We stock polypropylene models from inlet/outlet up to 1” (25mm). All of these units can be converted to assisted gravity return.


  • Pumps viscous inks and glues
  • 1/4", 3/8", 1/2", and 1" sizes
  • Patented lube free air system
  • Will not stall at slow speeds
  • Self priming
  • Safe for hazardous areas
  • Runs dry without damage
  • Variable flow rate

ATEX Approved Double Diaphragm
pumps are available!

We can also supply up to 3” (78mm) double diaphragm pumps with polypropylene, stainless steel, Hastelloy, and Cast Iron construction. Accessories include carts, stainless steel tanks and lids, siphon tubes for large containers and drums, and a full range of spares for stock pumps and other brands (ARO, All-Flo, Graco, Wilden, Vers-amatic, and Yamada). Ask us, and let Powerwise help you!

If you have experienced surging with your diaphragm pumps, you should use our Filter/Surge Suppressor which eliminates the surging, especially if you are planning on using a diaphragm pump with enclosed doctor blade chambers.

 Official distributor for the KELVA pump range:


Liquid Flow 2000

Air Pump Range
Sound Message, LLC
Design & Hosting
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