Metering pump in the use of noise is what happened? How to solve it?

Cause of trouble 1. the impact sound inside the inlet and outlet check valve

Solution: between the ball valve and valve seat will produce normal impact sound. The larger the one-way valve, the louder the sound

Cause of failure 2. internal pressure relief valve works

Solution：

Check the outlet pressure is abnormal, leading to release valve work

Check whether the inlet line is blocked or not, resulting in the release valve work

Check whether the pressure difference between inlet and outlet of metering pump is insufficient, leading to release valve work

Failure reason 3. internal pressure lubrication system release valve work

Solution: confirm whether the lubricating oil is correct

Sound released by normal pressure

Failure reason 4. worm gear / worm impact between suction and discharge stroke conversion

Solution: check whether the buffer is installed in the outlet pipe and whether the inflation pressure of the buffer is correct

The cause of the trouble is that there is an impact between the suction and the discharge stroke, which results in the collision between the 5. couplings

Solution：

Check the motor steering is correct

Check whether the buffer is installed in the outlet pipe and whether the inflation pressure of the buffer is correct

Failure reason 6. disc elastic gasket failure

Solution: replace dish shaped elastic gasket