The characteristics of butterfly valves

Butterfly valve, also known as a flap valve, is a regulating valve with a simple structure that can be used for switching control of low-pressure pipeline medium. Butterfly valves have the following five characteristics:

1. The butterfly valve has the characteristics of a simple structure, a small size, light weight, low material consumption, a small installation size, rapid switching, 90° reciprocating rotation, and a small driving torque. It is used to cut off, connect, and adjust the medium in the pipeline. has good fluid control characteristics and shut-off sealing performance.

2. The butterfly valve can transport mud, and the liquid accumulated at the mouth of the pipe is the least. At low pressure, a good seal can be achieved. good adjustment performance.

3. The streamlined design of the butterfly plate makes the loss of fluid resistance small, which can be described as an energy-saving product.

4. The valve stem is a through-rod structure, which has good comprehensive mechanical properties, corrosion resistance, and scratch resistance after quenching and tempering treatment. When the butterfly valve is opened and closed, the valve stem only rotates and does not move up and down. The packing of the valve stem is not easy to damage, and the seal is reliable. It is fixed with the taper pin of the butterfly plate, and the protruding end is designed to prevent the valve stem from collapsing when the joint between the valve stem and the butterfly plate breaks accidentally.

5. The connection methods include 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 that can realize remote control and automatic operation.