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1/4" Model
3/8" Model
1/2" Model

1" Model

1-1/2" Model
2" Model

3" Model



  • Polypropylene, Nylon, PVDF, Aluminum, & Stainless Steel Diaphragm Pumps.
  • Wetted diaphragms and parts available in Teflon*, Santoprene, Viton, & Geolast.
  • Pump Sizes from 1/4" to 3" (0-255 gpm).
  • Specially adapted drum pump kits.

The patented lube-free, non-stalling air system gives reliable, trouble free operation in all sizes of pumps. The all-plastic air systems in both metallic and plastic pumps prevent destruction of air system components from corrosive atmospheres or diaphragm ruptures. No brass or aluminum components are used within the air systems. Stallout due to ice formation in the air system is virtually eliminated due to the insulating quality of all plastic construction. There are also no vent holes in the air valve. Vent holes needed to prevent stalling in competitive pumps allow corrosive fumes to enter and destroy valuable components.

Larger capacity per stroke than competitive models means less wear on moving parts and longer life.

Superior Teflon overlay design does not require reduced diaphragm rod stroke, which in turn reduces pump capacity by 20%. All back-up diaphragms for Teflon overlays are Santoprene which offers a chemically resistant "second line of defense".

Every pump is performance engineered and quality built and tested to provide trouble-free service under the toughest conditions.