The characteristics of three kinds of water heater pump

The characteristics of three kinds of water heater pump

1.Brush dc water heater pump

  When the brush dc water heater pump is working,the abrasion of carbon brush is unavoidable once motor rotation.When wearing clearance of carbon brush is large,the noise of pump will be higher too.

  Advantage:low price

2.Brushless dc water heater pump(motor type)

  Brushless dc water heater pump(motor type) is made of brushless dc motor and impeller.Because of the gap between stator and rotor,the water will penetrate into the motor if the pump is working for a long time(the motor may be burn out).

  Advantage:The brushledd dc motor has been standardized.Many manufacturers can produce this motors in large quantities,so the price of motor is low.

3.Brushless dc magnetic isolated water heater pump.

  The brushless dc pumps is made of environmentally friendly materials,so the noise of pump is very low,the volume is small,and the performance is stable.Besides,the parameter of brushless dc pump can be adjusted through the stator winding,and the pump can run in wide voltage.

  Advantage:Long life and low noise,the pump can be used for hot-water circulation.The water heater pump can be installed underwater and it is waterproof completely.The ceramic shaft of pump is high-precision and with good vibration resistance.