Common faults and cause analysis of bag filter-solenoid valve does not operate or leaks

Cause Analysis:

(1) The coil is damaged, open circuit, poor contact, and the controller has no signal.

(2) The diaphragm is damaged and deformed, impurities are stuck on the diaphragm, the diaphragm cannot be reset normally, the spring fails or the vent is blocked.

(3) How much blowing pressure damages the components.

Approach:

(1) Overhaul coils and circuits.

(2) Replace the diaphragm spring or rubber parts, and clear the vent.

(3) Adjust the blowing pressure.