Technical
Specifications:
Operating Voltage
|
4V DC to 14.5V DC
|
Maximum Current
|
7.5A
|
Flowrate
|
20L to 80L/min,
(300 gal to 1300 gal/hr) 13.5V DC
|
Operating
Temperature
|
-20C to 130C (-5 F
to 270 F)
|
Pump Design
|
Clockwise
centrifugal with volute chamber
|
Motor Life
|
2000 hrs continuous
at 80 C (180 F) and 12V DC
|
Pump Weight
|
900 grams (2lb)
|
Pump Material
|
Nylon 66, 30% glass
filled
|
Maximum Pressure
|
tested to 50 psi
|
Fits Hoses Sizes
|
32mm to 50mm
(1-1/4" to 2")
|
|
|
Usually the most
difficult condition to cool a car engine is when it is stationary
and idling in high ambient temperatures. In this situation, the
mechanical pump produces its minimum flow rate of about 20 litres
per minute. At the highest engine speed that rate is typically
increased to about 180 litres per minute but because the coolant is
flowing so fast, it spends less time in the radiator and very little
extra heat is removed than when the flow rate is about 80 litres per
minute. The power taken by the pump increases dramatically at high
flow rates because the resistance to flow offered in the radiator
also increases.
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