When you need a reliable pump tooled for multiple applications, select this CDS - John Blue DP-139 diaphragm pump. Rated with a maximum pressure of 580 PSI and an upper flow rate of 13.9 GPM, this pump is ideal for use in agriculture, pest control as well as lawn & landscape applications. Includes a gear box for mounting on 8-13 hp engines with 1" shafts as well as a pressure regulator.

The DP-139 is a 3 Diaphragm Pump, 1-1/4" Inlet, 1/2" Outlet. Pump has crankshaft flange on one side and 1-3/8" male spline shaft on the opposite side. These three and four diaphragm semi hydraulic diaphragm pumps are designed to ensure a perfect mechanical balance and better volumetric distribution of the liquid. The John Blue High Pressure Diaphragm Pumps are factory equipped with the unique pulsation dampening system with 34 holes that absorbs pulsation pressure on all pistons equally. All fluid end-housing components are anodized aluminum. The valves are stainless steel with exclusive spheric section shaped design for perfect sealing. Our diaphragms are made from chemical resistant elastomers, which increases the pump's life even when they are used with aggressive agricultural and industrial chemicals. -3-diaphragm design
-All fluid end-housing components are anodized aluminum
-Valves are stainless steel with exclusive spheric section shaped design for perfect sealing
-Diaphragms are made from chemical resistant elastomers, which increases the pump's life even when they are used with aggressive agricultural and industrial chemicals

• DP-139-GRI8
  • Max flow: 13.9 gpm
  • Max pressure: 580 psi
  • Includes SC-1132-2 pressure regulator and DP-321006 gearbox with 1" hollow shaft for mounting on 8 to 9 hp gas engines
  • Port sizes: 1-1/4" HB inlet, (2) 1/2" HB outlet, 3/4" HB bypass
  • Pump shaft rotation: CW and CCW
  • Diaphragms: 3, semi-hydraulic, Desmopan® standard
  • Housing: Anodized aluminum
  • Max fluid temperature: 140°F
  • Weight: 40 lbs