B1 Piston Pump with Petrol Motor – Standard Pressure 300 Gallon/Hour

B1 Piston Pump with Petrol Motor – Standard Pressure 300 Gallon/Hour


Bore: 1 1/2 inch
Stroke: 1 3/4 inch
Maximum Flow G.P.H: 300
Maximum Flow Litres/min: 23
Maximum Head (Feet): 250
Maximum Head (m): 75
Maximum Head kPa: 750
Inlet Suction: 1 inch
Outlet Delivery: 3/4 inch
Motor: Honda GX120

Davies B1 Dimensions

Length 60cm

Width 30cm

Height 32cm

Price includes GST and is freight free within metro areas of North Island and South Island of New Zealand only. Contact us for delivery charges to other areas including rural.

SKU: D100006 Category:


B1 Piston Pump – Standard Pressure 300 Gallon/Hour With Petrol Motor

Direct Drive Piston Water Pumps

“Davies” B1-STD pump with petrol motor package includes:

  • Motor Pulley and Gland Spanner
  • HONDA Motor GX120 with reduction box 2:1 3.5 hp 1800rpm
  • Vee Belt
  • Timber board
  • Assembly of the equipment is included in the price

Oil required for piston pump SAE30 (not included).

The B Series is a single cylinder double-acting piston pump especially adapted for open or pressure tank service. The enclosed type of crankcase is designed to meet a demand for a pump which has a minimum of exposed working parts, thereby securing maximum safety of operation as well as good lubrication. The pump is suitable where the vertical distance to the lowest water level does not exceed 7.6 metres (25 feet).

B1 Construction

Power End: or Frame serves as the oil reservoir and contains removable bearings for eccentric shaft.

Piston Rod: is stainless steel and works through stuffing box of nut and gland type.

Water End: Bolted to Power End is reversible if required, with replaceable brass cylinder liner and replaceable bronze valve
grid seats which are pressed firmly in pump head casting.

Drive: Vee to vee. Fully adjustable. 14inch A on Pump, 2 ½ inch A on Motor, 48 inch AV belt.
Crosshead prevents all side thrust on stuffing box and plunger.

Connecting Rod: is of cast iron accurately machined, with large bearing surfaces.

Main Shaft: is integral with eccentric and has bearing on each end. Direction of rotation not important.

Lubrication: Oil in the crankcase floods every moving part at each stroke of the pump. (1/2pint SAE30 Oil)Valves are rubber, seating on bronze grid seats and are quickly accessible without disturbing suction or discharge connections.

Vacuum Chamber: suction opening is high enough to ensure the cylinder being filled with water at all times. And the pump
always “primed”.

Suction and Discharge Lines: These are taken from the side of the cylinder body. It is never necessary to disconnect any of
the piping to get at the inside of the pump.

Drive: Can be reversed to opposite side, if required. Generous table for prime mover with special Vee Belt tensioning.

Drain: To enable any gland losses to be piped away the well in the crankcase below the plunger rod is tapped to take
1/8inch BSP fitting.

Valves: Teflon valves accurately machined seating on bronze grid seats.

Piston: Special packed piston which is also accessible without dismantling pump.

Gland: Special packing to suit application.

Air Vessels: Provision for extra air vessels on both suction and delivery, ensures smooth, quiet and reliable operation.

If you would like a PDF download to view or print, please click the PDF button below. The pdf has extra info on these power horses, ranging from maintenance tips, spare parts, fault finding and installation instructions!

Have any Questions?

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