Failure and elimination:Before installation, check whether the operating conditions of the pipeline are consistent with the applicable scope of this valve, and clean the inner cavity to prevent dirt from jamming or damaging the sealing parts.

Elimination method: A, tighten the connecting bolt B, and replace the valve body. The valve cannot be opened and closed automatically when it is pneumatic: Reason: A, the air source pressure is too low B, the spring preload is too large C, the rubber diaphragm is damaged. Elimination method: A, increase the air supply pressure PTFE BBQ Mat B, reduce the spring preload C, and replace the diaphragm.

When manually operating the valve, do not use auxiliary levers to prevent excessive torque from damaging the drive components or sealing parts. 2. Elimination method: A, replace the valve stem B, trim the thread and add lubricating oil. Do not paint grease or oil on the surface of the rubber lining laminated rubber diaphragm to prevent the rubber from swelling and affecting the service life of the valve.

Do not tie clues to the handwheel or valve stem to lift the valve during installation.. Handwheel operation is not flexible: Reason: A. Stem distortion Thread damage. Valves should be stored in a dry and ventilated room, stacking is strictly prohibited, both ends of the inventory valve must be sealed, and the opening and closing parts should be slightly open.

Installation, maintenance and troubleshooting of fluorine-lined diaphragm valve: Installation and maintenance: 1. Leakage at the connection between the valve body and the bonnet: Reason: A, the connecting bolt is loose B, and the rubber lining of the valve body is broken.