If the air pressure of the pneumatic ball valve is too high, the solenoid valve on the surface of the cylinder will leak. At this time, the "Zizi" sound will be heard. To solve this problem, there are three main ways to stabilize the "temper" of the pneumatic ball valve: first, adjust the air pressure of the pneumatic ball valve to within 3-5 kg; second, if it is ineffective, it is necessary to do ventilation treatment, that is, remove the solenoid valve below, The third is that it is really not good, so we have to replace the solenoid valve with a new one.

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