Air Driven Piston Pumps (OP242A)

OP242A (2:1 ratio)

Air Operated Fluid Pump which is specially designed for corrosive materials.


  • Fully air operated
  • 2 ball piston design provides uniform positive displacement
  • Extremely durable pump with long life packing
  • Specially designed piston seals do not come into contact with material pumped. Hence, a longer life span as it is able to handle highly problematic fluids like Isocyanates which crystallizes on piston rods upon contact with moisture in air and rupture seals.

Typical Applications

  • Used for 30 gallons pail
  • For fluid transfer and feed
  • Mobile air spray machines

Typical Fluids Handled

  • Polyurethanes (Isocyanate or Polyol)
  • All kinds of paints
  • Coatings
  • Mold release
  • Stains
  • Varnishes
  • Lacqueurs
  • Lubricants
  • Water

Model Number

820302 (Stainless Steel)

Technical Information

Fluid Ratio : 2:1
Max Output Flow Int : 7.5 gpm(28.4 lpm)
Max Output Flow Cont : 5.0 gpm(18.9 Ipm)
Max Output Pressure : 360 psi (24.8 bar)
Max Air Input Pressure :180 psi (12.4 bar : Max Air Input Pressure :180 psi (12.4 bar)
Air Inlet Port : 1/4 npt(f)
Fluid Outlet Port : 3/4 npt(f)
Rod Piston Packings : UHMU PE or Telfon®
Other Seals : Viton®
Rod Cylinder : Stainless Steel
Other Wetted Parts : Stainless Steel
Weight Stubby Drum : 24 Ibs.(11.8 Kg.)
Package : 6" x 6" x 50"(152mm x 152mm x 127cm)26 lbs.(11.8kg)