1. The manual, pneumatic, electric and hydraulic components of Sanitary Butterfly Valve must be strictly debugged before leaving the factory. When the user is checking the sealing performance, it is necessary to evenly fix both sides of the inlet and outlet, close the butterfly valve, apply pressure to the inlet side, and observe whether there is leakage on the outlet side; and before the strength test of the pipeline, the butterfly plate needs to be opened to prevent damage to the sealing components.
2. Although the butterfly valve has been strictly inspected and tested before leaving the factory, there may be some products that automatically shift the screw during transportation, so we need to readjust it.
3. If it is an electric transmission butterfly valve, the opening and closing stroke of the control mechanism has been adjusted before leaving the factory. In order to prevent the power supply from being connected in the wrong direction, the user must first start the manual to the half-open position after the power is turned on for the first time, and then press the electric switch to check that the disk direction is the same as the valve closing direction.