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LPW Water Pump Engines

Variable Speed | Full-Load Speed Range
1500 | 3000 r/min

6.8 – 33.7 kw  |  9.1 – 45.2 bhp

Range
LPW2
LPW3
LPW4
LPWT4


Download the Engine Data Sheet

The Alpha LPW series engine has been specifically designed as a pump spec engine, suitable for use in industrial, municipal, agricultural water supply and irrigation pumps.

Proven durability, reliability and easy to maintain with oil and filter changes up to 500 hours, dependant on operational conditions. It is designed for continuous operation in ambient temperatures up to 52°C (122°F) and a cold start capability down to -32°C (-25.6°F).


Basic Engine Characteristics 

  • diesel fuelled and approved for operation on biodiesel, that conforms with ASTM D6751 and EN14214, concentrations of up to 20%
  • direct fuel injection
  • 2, 3 or 4 cylinders
  • liquid cooled
  • naturally aspirated or turbocharged (LPWT4)

Design Features

  • inlet and exhaust manifolds
  • heavy duty air cleaner
  • fuel lift pump
  • mechanical governing
  • self-vent fuel system with individual
  • fuel injection pumps
  • fuel filter/agglomerator
  • thermostatically controlled cooling system with belt driven coolant pump
  • radiator with fan and belt guard
  • gear driven positive displacement type
  • lubricating oil pump
  • spin on full flow lubricating oil filter
  • flywheel with ring gear
  • SAE 5 flywheel housing
  • 12V starter motor
  • 12V battery charge alternator
  • oil pressure and coolant temperature switches
  • fuel control solenoid (energised to run)
  • skid base packing
  • Cobalt Blue paint finish
  • operators handbook (English)

Full Engine Specifications:

Power Output

LPW2 Engine LPW3 Engine LPW4 Engine LPWT4 Engine
RPM 1500* 1800* 1500* 1800* 1500* 1800* 1500* 1800*
Continuous Power kWm 6.8 8.5 10.3 12.8 13.6 17.0 18.9 24.2
bhp 9.1 11.4 13.8 17.2 18.2 22.7 25.3 32.4
Fuel Stop kWm 7.5 9.4 11.8 14.1 15.0 18.7 20.9 26.9
bhp 10.0 12.6 15.8 18.9 20.1 25.1 28.1 36.0

Fuel Consumption

LPW2 Engine LPW3 Engine LPW4 Engine LPWT4 Engine
Load 1500* 1800* 1500* 1800* 1500* 1800* 1500* 1800*
g/kWh 100% 224.0 247.1 261.0 242.8 253.2 237.2 208.9 211.7
l/h 100% 2.0 2.5 3.2 3.7 4.1 4.8 3.7 6.1

Technical Data

LPW2 Engine LPW3 Engine LPW4 Engine LPWT4 Engine
Type of fuel injection Direct Direct Direct Direct
Number of cylinders 2 3 4 4
Aspiration Natural Natural Natural Turbocharged
Direction of rotation looking on flywheel end Anti clockwise Anti clockwise Anti clockwise Anti clockwise
Compression ratio 18.5:1 18.5:1 18.5:1 16.2:1
Number of flywheel ring gear teeth 96 96 96 96
Total cylinder capacity litre 0.930 1.395 1.860 1.860
in 3 56.75 85.13 113.5 113.5
Crankshaft end thrust
(maximum continuous)
kgf 180 180 180 180
lbf 400 400 400 400
Lubricating oil pressure
(mean) with the oil at 110°C (230°F)
bar 2.0 2.0 2.0 2.0
lbf/in2 29 29 29 29

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