Briefly describe the installation, maintenance, and troubleshooting of fluorine lined diaphragm valves

Installation, maintenance, and troubleshooting of fluorine lined diaphragm valves:

Installation and maintenance:

1. Before installation, it is necessary to carefully check whether the operating conditions of the pipeline match the scope of application specified in this valve, and clean the inner chamber to prevent dirt from blocking or damaging the sealing components.

2. The surface of the rubber lining laminated rubber diaphragm should not be coated with oil or grease to prevent rubber swelling and affect the service life of the valve.

3. During installation, do not tie the thread to the handwheel or valve stem to lift the valve.

When manually operating the valve, do not use an auxiliary lever to prevent excessive torque from damaging the driving components or sealing parts.

5. Valves should be stored in a dry and ventilated room, and stacking is strictly prohibited. The channels at both ends of the inventory valves should be sealed, and the opening and closing parts should be in a slightly open state.

Fault and cleaning:

1. The handwheel operation is not flexible: Reason: A. The valve stem is bent B. The thread is damaged

Cleaning methods; A Replace the valve stem B Trim the threads and add lubricating oil

2. When pneumatic, the valve cannot automatically open and close: Reason: A: The air source pressure is too low, B: The spring preload is too strong, C: The rubber diaphragm is damaged

Cleaning method: A Increase the gas supply pressure B Reduce the spring preload C Replace the diaphragm

Leakage at the connection between the valve body and valve cover: Reason: A Loose connection bolt B Broken valve body lining rubber layer

Cleaning method: A Tighten the connecting bolts B Replace the valve body