The diaphragm metering pump works by using flexible diaphragm with special design to replace piston and actuating reciprocating motion under the action of driving mechanism to complete the process of suction and discharge. Due to the isolation of the diaphragm, the isolation between the measured fluid and the driving lubricating mechanism is truly realized. Below the diaphragm metering pump manufacturers to analyze the dismantling of the old diaphragm, often encountered trouble, and put forward some suggestions:

After in the pump head loose, remove the pump head before the stroke length adjustment to the 10% position. It can ensure that the electromagnetic shaft has enough pressure to keep its connection stable so that the diaphragm can be swirled down.

The pull end torque from the Jack out of the screw. Grab the liquid end and rotate counterclockwise. A little resistance can spin off the diaphragm.

Chemical 3 measurement may end in fluid crystallization, resulting in a one-way valve ball and seat valve does not work.

In the end inhalation metering pump may have a gas leak. The suction side connector of the hydraulic end may lack the looseness of the O type or the suction valve.