类别：Industry news 发布时间：2019-01-02 14:56:15 浏览：456 次
1, the butterfly valve has simple structure, small volume, light weight, material consumption province, small installation size, small quick, 90 ° reciprocating rotary switch, low driving torque, etc, used for truncation, connected, regulate medium in pipe has good flow control characteristics and close the sealing performance.
2, butterfly valve can transport mud, at the mouth of the pipe liquid accumulation is the least. Good sealing can be achieved under low pressure. Good adjustment performance.
3, butterfly plate streamline design, so that the fluid resistance loss is small, it can be said to be an energy-saving product.
4, the valve stem is through the rod structure, after conditioning treatment, has good comprehensive mechanical properties and corrosion resistance, abrasion resistance. Butterfly valve opened and closed when the stem only for rotary movement and not for lifting and running, stem packing is not easy to damage, sealing reliable. Fixed with butterfly plate conical pin, the overhanging end is designed to prevent ejection, so as not to break the stem accidentally when the stem is connected to the butterfly plate.
5. There are flange connection, clamp connection, butt welding connection and lug clamp connection.
The driving forms include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuators, which can realize remote control and automatic operation.