Vacuum butterfly valve should be noted in the daily use

Vacuum butterfly valve should pay attention to daily use

When the ball valve is closed, there is still pressurized fluid inside the valve body. Before the maintenance, the line pressure is released and the valve is in the open position. The power or air source is disconnected, and the actuator is disengaged from the bracket.

Firstly, it is found that the upper and lower pipelines of the ball valve have been removed from the pressure before the disassembly and decomposition operation can be carried out;

Care should be taken to prevent damage to the sealing surface of the part during disassembly and reassembly, especially for non-metallic parts. Special tools should be used when removing the O-ring;

The bolts on the flange are assembled symmetrically, gradually and evenly during assembly;

The cleaning product should be compatible with the rubber parts, plastic parts, metal parts and working medium (such as gas) in the ball valve. Non-metallic parts are cleaned with purified water or alcohol;

The individual parts that are broken down can be cleaned by dipping. Metal parts that have been left undecomposed by non-metallic parts can be scrubbed with a clean and fine cloth impregnated with a cleaning product (to prevent the fibers from falling off and sticking to the parts). Remove grease, dirt, glue, dust, etc. adhering to the wall during cleaning;