Gear pump common failure and troubleshooting

Gear pump common fault and troubleshooting:

Symptom 1: the pump can not discharge:
1, the cause of the malfunction: a, rotating in the opposite direction; b, suction or discharge valve is closed; c, no inlet or pressure is too low; d, viscosity is too high, the pump can not bite material.
2, troubleshooting: a, confirm the direction of rotation; b, confirm the valve is closed; c, check the valve and pressure gauge; d, check the liquid viscosity, low speed operation according to the speed ratio of the flow is there, if the flow, then inflow insufficient.

Symptom two: insufficient pump flow:
1, the cause of the malfunction: a, suction or discharge valve is closed; b, the inlet pressure is low; c, the outlet pipe plugging; d, packing box leakage; e, speed is too low.
2, troubleshooting: a, to confirm the valve is closed; b, check the valve is open; c, to confirm the discharge is normal; d, tighten; a large number of leaks affect production, should stop running, disassembly inspection; Actual shaft speed

Symptom three: abnormal sound:
1, the cause of the malfunction: a, coupling eccentric or poor lubrication b, motor failure; c, reducer abnormalities; d, shaft seal at the installation of bad; e, the shaft deformation or wear.
2, troubleshooting: a or find filling grease; b, check the motor; c, check the bearings and gears; d, check the shaft seal; e, parking disintegration inspection.

Symptom four: the current is too large:
1, the cause of the malfunction: a, the outlet pressure is too high; b, melt viscosity is too large; c, shaft seal assembly bad; d, shaft or bearing wear; e, motor failure. The valve inlet pump industrial washing machine 2, troubleshooting: a, check the downstream equipment and pipelines; b, test the viscosity; c, check the shaft seal, appropriate adjustments; d, check after parking, hand crank car is too heavy; .

Symptom five: pump suddenly stopped:
1, the cause of the malfunction: a, power failure; b, motor overload protection; c, coupling damage; d, the outlet pressure is too high, interlocking reaction; e, abnormal bite into the pump; f, stuck shaft and bearing stuck.
2, troubleshooting: a, check the power; b, check the motor; c, open the safety cover, disk inspection; d, check the instrument interlock system; e, after parking, reversing confirmation; f,

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Plate Flange

The Plate Flange is a kind of the flange,which weld with the end of the pipe through inserting the pipe into the plate flange hole.The sealing surface of plate flange is flat face.

Production Size:DN10-DN3000

Pressure range:PN2.5,PN6,PN10,PN16,PN25

Production Standard:BS,JIS,GOST,ANSI,DIN,GB

Main Material of parts:

A105,20#,Q235,16Mn,A350 LF1,LF2,CL1/CL2,LF3 CL1/CL2,A694 F42,F46,F48,F50,F52,F56,F60,F65,F70;A182 F304,304L,F316,F316L,321,18-8,A182F1,F5a,F9,F11,F12,F22,F91,A182 F12,F11,16MnR

The cost of Plate Flange is very low,it is very easy to produce,So it is widely used to many industries.

Plate Flange

Plate Flange,Carbon Steel Plate Flange,Alloy Steel Plate Flange,304L Plate Flange

CANGZHOU HENGJIA PIPELINE CO.,LTD , https://www.hj-pipeline.com