Comet BP171 Diaphragm Pump

BP171 four diaphragm pump can be coupled to a hydraulic motor.

Comet BP171 Low Pressure Four-Diaphragm Pump for agricultural spraying.

Comet BP171 Low Pressure Four-Diaphragm Pump for agricultural spraying.

  • Comet BP171 4 Diaphragm Pump
    CAD $2,520.21
  • BP171 Repair Kit
    CAD $598.59


The Comet BP171 is a low pressure, four diaphragm pump with coated plastic heads, glass filled nylon manifolds, and stainless steel wet parts for superior resistance to corrosion. This pump is ideal for many low pressure applications, including agricultural spraying, lawn care, pest control, and high volume hydrostatic testing.

Plastic-coated aluminum liquid handling parts for easily handling the pumping of certain agricultural chemicals, including liquid fertilizers, herbicides, pesticides, de-icing materials, and other hard-to-handle liquids.

BP171: Four diaphragm pump with 1-3/8" (35 mm) 6-spline PTO through shaft. With mounting rails. Comes standard with pressure accumulator.

  • Max. Flow: 43 gpm (163 L/min)
  • Max. Pressure: 290 psi (20 bar)
  • Max. Rated Speed: 550 rpm
  • Max. Fluid Temperature: 104° F (40° C)
  • Min. Power: 9.6 hp
  • Port Sizes: 1-1/2" (38 mm) inlet
  • Shaft: 1-3/8" (35 mm) 6-spline PTO through-shaft
  • Four semi-hydraulic diaphragms.
  • Low pressure pump.
  • Epoxy coated materials for chemical resistance.
  • Plastic coated aluminum liquid handling parts.
  • Pump Shaft Rotation: CW and CCW
  • Self-priming.
  • Can be run dry.
  • Large capacity oil bath crank case.
  • Adapts to PTO, gas engine, hydraulic motors, or belt drives.
  • Weight: 53 lb (24 kg)

Repair Kit # 5026.0145 Includes

  • 4 x 1800.0002 Diaphragms
  • 1 x 1800.0034 Diaphragm
  • 8 x 1220.0046 Valve Assemblies

Under Related Information you will find a number of helpful PDF files pertaining to this Comet BP171 Diaphragm Pump, such as a user manual, performance chart, parts list, and more.

Pay In Installments

Add one or more qualifying products to your cart and your entire order becomes eligible for interest-free installment plans of up to 6 months. Learn More

Some qualifying products such as sprayers and equipment require a shipping quote. Shipping will also qualify for installments. Contact us at 1-800-461-1041 or email Quotes are provided within 1 hour during normal business hours eastern standard time.

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