butterfly valve structure features: 1. The butterfly valve has simple structure, small volume, light weight, low material consumption, small installation size, quick switch, 90 degrees of reciprocating rotation, low driving torque, etc. Medium used in the pipe cutting, connections, and adjust, has good flow control characteristics and sealing performance. 2. Butterfly valve can transport the mud, and the least liquid stored in apertures. Low pressure can achieve good sealing. Good regulation performance. 3. Butterfly plate the streamlined design can reduce the loss of fluid resistance, is a kind of energy-saving products. 4. Stem for rod structure. After tempering treatment, has the good combination of mechanical properties, corrosion resistance, and scratch resistance. When the butterfly valve opening and closing, the valve stem rotation not only ascend. Stem packing is not easy to damage, reliable sealing. The butterfly plate fixed cone pin, extended end USES erosion prevention design, avoid the valve stem and disc stem connection accidentally broke down. 5. Connection mode including flange connection, the counter of the ear KouKa hoop connection, butt welding and connection. Driving mode is manual, worm gear, electric, pneumatic, hydraulic and electric hydraulic linkage actuator, which can realize remote control and automatic operation. Advantage: 1. Open/close convenient, quick, fluid resistance small, frequent operation and energy saving. 3. Mud can transport, export the least liquid can be stored in the pipes. 4. Low pressure can achieve good sealing. 5. Good regulation performance. 6. When fully open, effective circulation channel the seat area is larger, the fluid resistance is small. 7. Open-close torque is small. Due to the rotation axis of basic equal butterfly plate under the action of medium, to produce torque in the opposite direction, therefore is more efficient to open and close. 8. Sealing surface material in rubber, plastic, etc, so low pressure sealing performance is good. 9. Simple installation. 10. Flexible operation. Can choose manual, electric, pneumatic and hydraulic model.

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