BWSX mid-line type clamp fire-fighting special signal butterfly valve can clearly display the valve switch state, which is intuitive, clear and reliable reflecting the working state in the fire protection system, so it is widely and widely applied to the fire protection system.

The main features of the butterfly valve are simple structure, small size and light weight. It consists of only a few components. In practical applications, opening or closing the butterfly valve can be quickly opened and closed by rotating the disc 90°. The operation is simple and complete. When the position is opened, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, and the valve has good fluid regulation control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipe. In the cylindrical passage of the butterfly valve body, the disc-shaped disc rotates around the axis, and the rotation angle is between 0° and 90°. When rotating to 90°, the valve is Fully open. The butterfly valve has two sealing types: elastic seal and metal seal. Elastomeric sealing valve, the sealing ring can be mounted on the valve body or attached to the periphery of the disc. The metal multi-layer sealing butterfly valve has good sealing performance. Equipped with electric actuators and pneumatic actuators, it is suitable for use in corrosive, radioactive, high temperature and low temperature conditions where flow and pressure are required for remote control. If a butterfly valve is required for flow control, the main choice is the correct size and type of valve. The structural principle of the butterfly valve is especially suitable for the production of large-diameter valves (such as DN 1000 or above), and is widely used in applications where the structural length is short. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems for thermal power plants.