Pump a variety of fault reasons:
First, the pump output pipe resistance Large elimination method:
1 output pipe layout is correct, the pipe diameter can not be small, the pipe corner is too much 2 check the valve is flexible 3 appropriate to open the outlet valve until the operating point
Second, oil, water, more exclusion method:
4 the oil in the water, air bubbles in the control of the temperature of about 100 ℃ -120 ℃, slowly exhausted, the temperature can be gradually warmed to the point 5 pipeline layout is reasonable 6 install the exhaust valve
Third, the pipeline and impeller flow path blockage method:
7 to clear debris in the pipe and impeller flow path 8 Check the valve gate valve failure
Fourth, the import filter blockage method:
9 Regularly clean the filter 10 Filter mesh can not be too dense
Fifth, the pump inlet sealing ring and impeller sealing ring severe wear and tear excluded:
11 replacement of wear parts 12 pump suction diameter is less than or equal to 100mm, the mouth ring gap greater than 1.5mm should be replaced; suction diameter greater than or equal to 125mm, the mouth ring gap greater than 2mm, should be repaired and replaced
Sixth, speed and steering is not correct Exclusion:
13 Check the speed value (measured with a tachometer)
14 Check if the line connection 15 is operating in reverse
Seven, the transmission of the viscosity of the oil deviate from the basic value of the exclusion method:
16 When the media deviates from the order parameters and the fault should be made to our factory
Eight, the device NPSH S is too low (too low vapor capacity)
Method of exclusion:
17 Check the high tank level adjustment if necessary 18 The pump inlet valve is fully open and check the filter 19 When the high tank to the pump inlet pipe resistance is too large,