What is the reason why the pneumatic valve doesn't close tightly?

1, execution air pressure is insufficient.

2. The seal of the pneumatic device is damaged, air leakage and low pressure lead to insufficient travel, and it cannot be completely opened and closed.

Fault 2: Valve failure

1, the valve core is blocked by foreign matter or damaged, resulting in lax closing. Clean or replace the valve core. It is suggested to add a filter at the inlet of the valve.

2. The connection between the valve and the pneumatic actuator is loose, so it should be adjusted and fixed in time.