Since the thermal conductivity of air pumps cause no water to mention the following:
( 1 ) Some users of the heat transfer oil pump are not filled with enough water before the water pump starts; sometimes it seems that the water poured has overflowed from the air vent hole. The heat transfer oil pump does not turn the pump shaft to completely discharge the air, resulting in a little air remaining in the water inlet pipe. Or in the pump body.
(2) horizontal inlet pipe section of the inverse flow direction of the pump in contact with the thermally conductive applications decreasing gradient of 0.5% or more, connected to one end of the pump inlet is high, do not perfectly horizontal. If it is lifted upwards, air will remain in the inlet pipe, which will reduce the degree of vacuum in the pipes and the water pump, affecting water absorption.
( 3 ) There is a crack at the elbow of the inlet pipe, and there is a slight gap between the inlet pipe and the water pump, which may cause air to enter the inlet pipe.
(5) a thermally conductive filler pump wear due to prolonged use or have been cut through the packing loose, causing a large amount of water discharged from the gap filler and the sleeve shaft, as a result of internal and external air enters from gaps pump Affected the lifting of water.
( 4 ) The water inlet pipe has holes due to long-term potential underwater and corrosion of the pipe wall. After the water pump works, the water surface continues to drop. When these holes are exposed to the water surface, air enters the water inlet pipe from the hole.
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