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What is the noise inside the metering pump

2019-03-05 14:14:06

What is the noise when the metering pump is in use? How to solve it?

 

Cause of failure 1. Impact sound inside the inlet and outlet check valve
Solution: A normal impact sound is generated between the ball and the seat. The larger the check valve, the louder the sound

Cause of failure 2. Internal pressure relief valve works
solution:
Check if the outlet pressure is abnormal, causing the release valve to work
Check if the inlet line is blocked, causing the release valve to work.
Check if there is insufficient pressure difference between the metering pump inlet and outlet, resulting in the release valve working.

Cause of failure 3. Internal pressure lubrication system release valve work
Solution: Confirm that the lubricant grade is correct
Normal pressure release sound

Cause of the fault 4. The worm gear/worm has an impact between the intake and discharge stroke transitions
Solution: Check if the buffer is installed in the outlet line and the buffer inflation pressure is correct.

Cause of the fault 5. An impact occurs between the suction and discharge strokes, causing a collision between the couplings.
solution:
Check if the motor is turning correctly
Check if the buffer is installed in the outlet line and the buffer inflation pressure is correct.

Cause of failure 6. Disc-shaped elastic gasket failure
Solution: Replace the disc-shaped elastic gasket

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