Poly Diaphragm Pump DP-193-PP

3 diaphragms. Drive shaft 1″ diameter (one side only). Negative pressure – max: 4.9 ft; intermittent: 9.8 ft.



  • The heads are designed with a patented technology that includes an aluminum die-cast core inside a polypropylene structure offering superior strength.
  • Washers and diaphragm bolts are in 316 stainless steel, an exclusive feature.
  • Die cast crankcase incorporating a new cooling system.
  • New chemically resistant diaphragm material pre-deformed to reduce the amount of deflection, increasing diaphragm life. The diaphragm material is compatible with most of the corrosive chemicals on the market today.
  • A short crankshaft stroke means the longest life possible.
  • New connecting rods in special bronze alloy offer economical and trouble free service.
  • 316 stainless steel inlet and outlet check valves.


Model Max Flow GPM Max Pres. PSI Max Speed RPM Max Power HP Max Temp. ° F Suct. Hose Diam. Disch. Hose Diam. Weight LB Lube Oil
DP-193-PP 19.8 218 550 2.8 140° F 1-1/2″ Hose 1″ NPT 24.2 30 SAE


  • NEW DP-193-GRP: Includes gearbox for 3.5 and 5 HP engines
  • NEW DP-193-GRIP: Includes gearbox for 3.5 and 5 HP engines and SC-2420-3 regulator.
  • All available in Poly.


  • SC Series: Spray Guns and Lances.
  • SC-2420-3: Pressure Regulator.
  • SC-2660-3: Pressure Regulator.
  • DP-321003: Gearbox for 5 HP Gasoline Engine with 3/4″ Shaft.
  • DP-31874997: Hydraulic Adapter (SAE “B”).
  • DP-31922897: Hydraulic Adapter (SAE “A”).