Characteristics and installation of electric butterfly valve
Electric butterfly valve is an important execution unit in the field of industrial automation control. The electric butterfly valve is composed of an angular stroke electric actuator (0-90 ° partial rotation) and the butterfly valve as a whole, which are mechanically connected and installed and debugged together. Electric butterfly valves have the characteristics of simple structure, small size, light weight, low material consumption, small installation size, fast opening and closing, 90 ° reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate the medium in pipelines, and have good fluid control characteristics and closing sealing performance.
Installation and maintenance of electric butterfly valve:
1. During installation, the valve disc should be stopped in the closed position.
2. The opening position should be determined according to the rotation angle of the butterfly plate.
3. Butterfly valves with bypass valves should be opened before opening.
4. The installation should be carried out according to the manufacturer's installation instructions. For heavy butterfly valves, a solid foundation should be set up.
The electric butterfly valve stem is a through stem structure that has undergone quenching and tempering treatment, and has good comprehensive mechanical properties, corrosion resistance, and abrasion resistance. When the electric butterfly valve is opened and closed, the valve stem only rotates and does not move up or down. The packing of the valve stem is not easily damaged and the seal is reliable. Fixed with the butterfly plate cone pin, the extended end is designed to prevent the valve stem from bursting out in case of accidental breakage at the connection between the valve stem and the butterfly plate.
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