Vacuum butterfly valve test and adjustment instructions

Vacuum butterfly valve test and adjustment

1, vacuum butterfly valve, whether manual, pneumatic, hydraulic pressure in the factory, electrical components have passed the rigorous test, and then test the user in the sealing function, both sides of the import and export should be evenly fixed, closed butterfly valve, the pressure on the inlet side on the exit side, the investigation has No air leakage, before the pipeline strength test, the disc should be opened to avoid damage to the sealing pair.

2, despite the rigorous inspection and experiment, but also the previous product in the process of active screw deflection during the transportation process, the need to readjust, pneumatic, hydraulic, etc., please read the intact drive manual.

3, has begun to control the mechanism, when the electric drive butterfly valve factory, outstanding tight stroke adjustment. In order to avoid the power-on direction is wrong, in the top power, when the top of the list is manually turned to the half-open position, the power switch in the direction of the check-disk check valve is pressed, and the user can be closed in the same direction.