What is the fire signal butterfly valve? And what is the use method of fire signal butterfly valve?

The fire signal butterfly valve is commonly used in various petroleum, chemical, pharmaceutical, hydropower, drainage and other aspects. The application range is very wide. The most important thing is that it can be used in corrosive gas, liquid or even semi fluid. Many high-rise buildings are used in the fire system. What is the fire signal butterfly valve? And how is it used?
What is the fire signal butterfly valve？
The fire signal butterfly valve is a top mounted structure under high pressure. Under some large-diameter unconventional conditions, the connecting bolts of the valve body are reduced, which increases the reliability of the valve to a certain extent and reduces the impact of its weight on the valve to a great extent.
Use method of fire signal butterfly valve：
1. To connect the line, find the connecting wire end of the electrical appliance and connect it with the line of the fire signal butterfly valve. It must be noted that the connection is corresponding to the connection, and the wrong connection is not allowed. Otherwise, short circuit may occur. After the connection, the port can be sealed and fixed.
2. When the valve is in the fully closed state, turn the closing cam clockwise. When you hear a slight click during the rotation, it means that the cam should just touch the switch. At this time, you only need to tighten and fix the cam completely.
3. When the valve is in the fully open state, it operates in the opposite direction to the previous fully closed state. Rotate the upper cam counterclockwise. Pay attention to the click sound during the rotation, and then adjust it to the open cam.
4. When the valve is fully open or fully closed, the limit screw cannot be adjusted to the position just set at the turbine. A certain space must be reserved, and then the spin screw of the limit screw is tightened to lock the nut.
5. When covering the whole cover, pay attention to it. When the valve is fully closed, the opening indicator can point to the 0 scale on the dial. At this time, remember to tighten the screws to fix the pointer.