Why is water pumping cool water is normal, but when pumping hot water pressure and flow are very small?
There may be: first, the water temperature is too high, the impeller damage! But this may not be very likely! Second, but also the water temperature is too high, but may be too high water temperature will be hot water pipe deflated, resulting in no water. Third, it is possible to buy fake and shoddy products!!! Another important problem is that you didn't tell me what kind of pump it was! What forms of work do you have?
Not sure about the LZ what is the specific type of hot water pump pump but it is flow and small pressure must be produced liquid vaporization of liquid vaporization two general situation is the pump pressure alternating is under positive pressure immediately into negative pressure is two high temperature liquid into the pump and to absorb mechanical heat due to the higher temperature is the centrifugal pump if so when the liquid from the inlet to the outlet end of the impeller is thrown when in the state of negative pressure and lower boiling point even if did not reach 100 degrees will boilIf the water pressure and flow rate of small vaporization significantly not only reach the requirement of the pump itself also has a lot of damage caused by mechanical damage is suggested to view the instructions to use if this situation is to contact the dealer in the allowable range of temperatureIf no water is not only the problem of vaporization conditions can be detected under normal pressure inlet check instructions when pumps are used in the allowed suction height within the position and I don't know if the pump there may be no open suction valve or discharge valve and pump parts prior to use at the beginning of irrigation is the first inside in order to produce self suction irrigation
You look at what you pump that is, there are manuals to see how much the media can not exceed the degree,
