Introduction to butterfly valve:
1, butterfly valve with simple structure, small volume, light weight, material consumption, small installation size, quick switch, 90° reciprocating rotation, small driving torque and other characteristics, used to cut, connect, adjust the medium in the pipeline, with good fluid control characteristics and close sealing performance.
2, butterfly valve can transport mud, the minimum amount of liquid in the pipe mouth. Good sealing can be achieved at low pressure. Good regulation performance.
3. The streamlined design of butterfly plate makes the fluid resistance loss small, which is a kind of energy-saving product.
4, the valve stem is a through-rod structure, after conditioning treatment, has good comprehensive mechanical properties and corrosion resistance, abrasion resistance. Butterfly valve open and close the stem only for rotary movement and not for lifting operation, stem packing is not easy to damage, reliable sealing. Fixed with butterfly plate conical pin, the overhanging end is designed to prevent rush out, so as to avoid valve stem collapse when the connection between valve stem and butterfly plate breaks unexpectedly.
5. The connection mode includes flange connection, clamp connection, butt welding connection and lug clamp connection.
The driving form has the manual, the worm gear transmission, the electric, the pneumatic, the hydraulic, the electro-hydraulic linkage and so on actuators, may realize the remote control and the automatic operation.