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PowerFlow HPX300-B18 Combination pump

When you need to move a lot of water, you need a high quality pump that is engineered to perform. Hale’s range of high flow pumps give you the capacity you need. Whether your application is for low pressure firefighting, water transfer or de-watering, there is a Hale high flow pump for you. Hale has a long heritage of designing and manufacturing high performance fire pumps, so you can trust Hale to deliver the performance you demand.


PowerFlow HPX300-B18 Combination pump


The pump/engine shall be capable of meeting the NFPA 1906 performance rating of 50 GPM @ 100 PSI.  Typical pump performance from 5 foot draft at sea level shall be: 150 GPM @ 100 PSI, 245 GPM @ 75 PSI, 320 GPM @ 50 PSI and 380 GPM @ 25 PSI.


The pump body shall be made of anodized alloy aluminum castings coupled together with a stainless steel band clamp with an O-ring seal which allows quick pump volute removal for servicing. The pump end shall be factory hydrostatically tested to 200 PSI. The impeller shall be bronze. The renewable clearance rings shall be made of bronze to inhibit galvanic corrosion. The impeller shall be 8.0 inches (203.2 mm) in diameter and designed with a sleeve back end to prevent water from coming in contact with the engine shaft. The pump shaft seal shall be an automatically adjusting, maintenance free, mechanical type. The pump body shall be equipped with a petcock drain valve.


The pump shall be equipped with an exhaust venturi primer of brass and stainless steel construction.  The primer shall be capable of priming at 13 feet and shall be actuated with a spring return, single control lever located at the operator’s panel. Then, primer to pump line shall be equipped with an automatic check valve for priming from an open body of water and a manual shut-off for pumping from a pressurized water source.


The suction and discharge ports shall be female pipe thread, designed and located to accept applicable hose thread adapters (3” NPT / 4” Victaulic Suction, 3” NPT Discharge flange).


The engine shall be a 4-cycle gasoline Briggs and Stratton Vanguard 356447 series V-Twin, overhead valve, air cooled design. Engine rating shall be 18 BHP at 4000 rpm with a torque of 30 lb-ft at 2600 rpm.  Engine displacement shall be 570cc and shall be designed to meet 1994 CARB (California Air Resources Board) standards. A 12-volt electric system shall be provided with electric starter and a 16 amp alternator. Recoil backup engine starting shall be provided. Engine shall be equipped with a residential muffler with USDA approved spark arrestor.


  • Type: Combination pump
  • Suction Connection: 3” Female NPT, 4” Victaulic combination; 3” Male NH, Other options available
  • Discharge Connection: HPX- 3” Female NPT, HPT- 2.5” Male NH screw type valve that swivels 175 degrees for ease of hose layout. Other options available
  • Body and Volute: Aluminum
  • Impeller: 8″ (203 mm) silicon bronze
  • Pump Shaft: Engine shaft with bronze sleeve
  • Priming: Exhaust Venturi; 15-20″(508 mm) Hg
  • Maximum Flow: 400 GPM (1514 LPM)
  • Maximum Pressure: 120 PSI (8 BAR)


  • Throttle level
  • Priming controls
  • Master on/off switch
  • Start push-button
  • Choke control
  • low oil pressure warning light
  • Discharge Gauge: 2-1/2 inches (63.5 mm) Dia.Glycerine filled, 0 to 400 PSI (0 to 28 BAR)


  • Suction Adapters
  • Discharge Adapters
  • Pump manifolding
  • Exhaust elbow with rain cap
  • Protective pump coating for harsh or seawater applications
  • Deluxe instrument panel with two gauges
  • 5 gallon stand alone tank
  • Exhaust blanket
  • Tachomoter/hourmeter
  • other panel and instrumentation options available


  • Make: Briggs & Stratton Vanguard
  • Model: 356400 Series
  • Type: Horizontal shaft, air cooled, V-twin OHV
  • Horsepower: 18BHP (13.4. kW) at 4000 RPM
  • Torque: 26.9 foot pound @ 2600 RPM
  • (44.6 Nm @ 2600 RPM)
  • Bore x Stroke: 2.83 x 2.76 inches (72 x 70 mm)
  • Displacement: 34.78 cubic inches (570 cc)
  • Oil Capacity: 1.8 quarts (1.7 liter)
  • Electrical: 16 AMP alternator
  • Emissions: Meets current CARB and EPA standards

Features and Benefits:

  • Rotating Discharge Valve — Quick and easy hose layout (standard on HPT, optional on HPX)
  • Full Instrumentation — Instrument panel shipped loose for remote mounting for “X” version. Instrument panel is mounted for “T” version.
  • Superior Performance—High pump efficiency
  • Briggs & Stratton Vanguard Engine—Quiet and powerful
  • Exclusive band clamp design — Quick and easy access for maintenance and repair

Read more about this product here

Product Length Width Height Weight
HPT300 29” 21 ” 20-1/2” 176 lbs
HPX300 22″ 18 1/2″ 20″ 162 lbs

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