1. When the vacuum butterfly valve is used, it is only fully open or fully closed, and it is not allowed to be used for conditioning and saving, so as to avoid erosion of the sealing surface and accelerate wear. There are reverse sealing devices in the gate valve and globe valve, and the handwheel is turned to the upper position and tightened to prevent the medium from leaking from the packing.
2. The vacuum butterfly valve should always be kept clean during the use process, and the transmission thread should be lubricated regularly.
3. The bolts of the packing gland should be tightened evenly and should not be pressed into a crooked state to avoid bumps that hinder the movement of the valve stem or cause leakage.
4. Before the equipment, carefully check the pressure and diameter of the valve logo to meet the requirements of use, eliminate the defects formed in the transportation process, and eliminate the dust on the valve parts.
5. When installing, the valve can be directly installed on the pipeline according to the connection method. Under normal circumstances, the equipment can be installed in any position of the pipeline, but it needs to be easy to operate and repair.
6. When opening and closing the vacuum butterfly valve, do not rely on levers or other things to avoid damage to the valve parts. Turn the handwheel clockwise to close, and vice versa to open.
7. Butterfly valves that have been stored for a long time should be checked regularly. The exposed processing surface must be kept clean, and the dust should be removed. When storing, the two ends of the pneumatic butterfly valve channel should be blocked and open, and they should be neatly stored in a ventilated and dry place indoors. It is strictly prohibited. Stacked or open storage.
