The Comet APS51/MF Diaphragm Pump is a high pressure, three diaphragm pump that comes with a universal drive face on the front and a 1-3/8" male 6-spline PTO shaft on the back. It is perfectly capable of handling flow rates up to 14.5 GPM and pressures up to 580 PSI. 

This Comet high pressure diaphragm pump is internally manifolded with anodized aluminum heads for less leak points, perfect for pumping a variety of agricultural chemicals, such as herbicides, pesticides, insecticides, liquid fertilizers, ice melt, and other hard-to-handle fluids. The Comet APS51/MF Diaphragm Pump is well-suited for professional applications including lawn care, pest control, weed control, de-icing, foam insulation, agricultural spraying, crop spraying, low height tree spraying, hydrostatic testing, and much more.

Please note that a pressure regulator is NOT included. If you require one for your Comet APS51/MF Diaphragm Pump, order either the 1204.0189, 1204.0205, 1204.0678, or 1204.0680 Pressure Regulators. For attaching to a gas engine with a 3/4" shaft, order the Comet 5005.0216 Gear Reducer. For attaching to a gas engine with a 1" shaft, order the Comet 5005.0221 Gear Reducer.

If you are in need of replacement diaphragms, o-rings, or valves for this APS51/MF Diaphragm Pump, order the Comet 5026.0084 Repair Kit.

Specifications:
  • Max. Flow: 14.5 GPM (55 LPM)
  • Max. Pressure: 580 PSI (40 BAR)
  • Max. Pump Speed: 550 RPM
  • Max. Fluid Temperature: 104° F (40° C)
  • Inlet Port: 1-3/8"
  • Shaft: 1-3/8" male 6-spline PTO shaft
  • No. of Diaphragms: 3
  • Anodized aluminum liquid handling parts
  • Clockwise and counterclockwise pump shaft rotation
  • Self-priming operation
  • Runs dry without damaging
  • With universal drive face on front and pressure accumulator
  • PTO, gas engine, hydraulic motor, or belt drive adaptable
  • Weighs 36 lbs.
  • Pressure Regulator NOT included


Click the photo to see related products:

Comet 5026.0084 Repair Kit for APS51 Diaphragm Pump