Lincoln’s AODD Double-diaphragm Pumps are for heavy-duty vehicle service and industrial applications

System Description:

Originally developed for antifreeze/water mixtures, the pumps dispense other light fluids compatible with Buna-N, aluminum and/or polypropylene. The Air-Operated Double Diaphragm (AODD) Pumps feature dual inlets to mix and dispense two fluid products in a 50:50 ratio. Available in ½-inch and 1-inch sizes, the pumps can meet the volume needs of many specific applications.

The new pumps expand Lincoln AODD Pump line with the following:

  • Dual inlets mix and dispense two fluid products in 50:50 ratio
  • The pumps were originally developed for anti-freeze /water mixture but they will dispense other light fluids compatible with Buna-N, Aluminum and/or Polypropylene
  • Two sizes (1/2″ & 1″) meet the volume needs of specific applications
  • Available with Polypropylene or Aluminum pump body for shop, mobile
    and heavy duty installations

New Dual Inlet AODD Pump Models

Model NumberPump
or Soft Parts
Pump Inlet
Outlet NPT
Max. Free
Delivery gpm
Air Inlet
NPT (f)
Max. Rec. Inlet
Air Pressure
Susp. Solids
856361/2″AluminumBuna-N1/2″ / 1/2″151/4″125 psi1/8″AF/Water
856371/2″PolypropBuna-N1/2″ / 1/2″141/4″100 psi1/8″AF/Water
856381″AluminumBuna-N1″ / 1″421/2″125 psi1/4″AF/Water
856391″PolypropBuna-N1″ ANSI*451/2″100 psi1/4″AF/Water

*85639 features ANSI flange connections and requires 3 each 275631 Adapter and 275632 Seal Kit for 1″ Pipe Thread InstallationClick edit button to change this text.