80LPM –1.33LPS at 120m head Pentax Bore Pump – 3 Phase – 4S100-35

80LPM –1.33LPS at 120m head Pentax Bore Pump – 3 Phase – 4S100-35

80LPM –1.33LPS at 139m head Pentax Bore Pump – 3 Phase – 4S100-44

80LPM –1.33LPS at 139m head Pentax Bore Pump – 3 Phase – 4S100-44

80LPM – 1.33LPS at 139m head Pentax Bore Pump – 3-wire 1 Phase – 4S100-44

4S100-44 Pentax 3-wire 1 phase 5hp / 3.7kw bore pump
In stock

Pentax 4″Bore Pump with Franklin Electric motor assembly.

Assembly includes pump, motor & starter/control box.

100 liters per min 1.66 liters per second @ 59m head
90 liters per min 1.50 liters per second @ 100m head
80 liters per min 1.33 liters per second @ 139m head
70 liters per min 1.16 liters per second @ 172m head
60 liters per min 1.00 liters per second @ 203m head
50 liters per min 0.83 liters per second @ 229m head
45 liters per min 0.75 liters per second @ 238m head
40 liters per min 0.66 liters per second @ 248m head
35 liters per min 0.58 liters per second @ 254m head
30 liters per min 0.50 liters per second @ 260m head
25 liters per min 0.41 liters per second @ 266m head
0 liters per min 0.00 liters per second @ 285m head

This 4S100-44 has a 3.7kw / 5hp 3-wire 1 Phase Franklin Electric motor.
The 3-wire 1 phase motor does require a starter box which is included.

There are other bore pump accessories that you will need when you install your bore pump which include bore cap, drop cable, support cable, riser pipe, pressure gauge, etc.  These are listed below

Please be sure that your pump and accessory selection is correct before you purchase as the onus is on you. This is why I have included suggestions below with links, to ensure you select the correct size accessories for this model pump.


Options to purchase with your kit to suit this pump

Bore Cap

Bore Caps are available with different size discharge threads.  Your pipe and adaptor size is what will determine what size discharge thread it will need to connect with. Please keep this in mind when selecting your bore cap.


Splice Kit

The splice kit is used to join the motor cable to the electrical drop cable. The splice kit makes a waterproof join


Pump Shroud

A pump shroud is needed to cool the motor and is only required if you are installing a 4″ pump down 6″ or larger casing. A shroud adapter is also available on this site.


Electrical Cable
1 Phase Cable 3-wire/4 core submersible drop cable is required. However, you must check with your electrician on cable size. He will do volt drop calculations to meet site requirements to comply with AS.


Stainless Steel Support Cable – Available in 3mm cable or 4mm cable.


Stainless Steel Support Cable Grips/Clamps – Available in 3mm or 4mm to suit S/S Cable.


Pressure Gauges Liquid Filled 63mm – Available in 0-800kPa, 0-1000kPa, 0-1600kPa & 0-2500kPa pressure ratings.


Flexible Riser Pipe
– Series 100 is for depths up to 100.The sizes are 32mm and 50mm internal diameter.
– Series 200 is for depths up to 250m. The sizes range from 40mm to 200mm internal diameter.
– As well as the couplings, ties and joiners.


Installation Roller
The installation roller is a device that fits on the top of the bore casing.  The rollers make it easy to lift and lower the bore pump down the borehole.


Single Phase Motor Protection
The motor protection device for a 3-wire bore pump motor is the Franklin Pumptec Plus.



There is a 2 year warranty with the Pentax bore pumps and Franklin Electric motors.

More Information
Motor Size 3.7kw / 5hp
Phase Single 1 Phase 3-wire
Rated Flow (LPM) 80
Size 4" Inch
Discharge (mm) 32mm - 1.25"
Brand Pentax
Warranty Period 2 Years
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