DN800 electric clamp butterfly valve cast iron lined rubber butterfly valveShanghai Fadeng/VTTEN
Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. Simple structure, small size and light weight, easy installation and operation, adjustable flow medium, low fluid resistance, excellent sealing performance, and long service life. Composed of rubber sealed butterfly valve and carbon steel or stainless steel valve plate and stem. Suitable for regulating flow and intercepting media on water supply and drainage, gas pipelines with temperatures ≤ 80-120 ℃, such as food, chemical, petroleum, electricity, textile, papermaking, etc.
The clamp type butterfly valve has a simple structure, small volume, and light weight, consisting of only a few parts. And it can be quickly opened and closed by simply rotating 90 °, with simple operation, and the valve has good fluid control characteristics. When the butterfly valve is in the * open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body, so the pressure drop generated by this valve is very small, which has good flow control characteristics. The butterfly valve has a small volume and occupies a small space. Good sealing performance, the specific selection should be based on the medium, temperature, pressure, etc. For the installation of clamp type butterfly valves, double headed bolts are used to connect the valve between two pipeline flanges.
The components of a butterfly valve mainly consist of a valve body, a valve stem, a valve core, and a valve seat. The valve body is cylindrical in shape, with a short axial length and a built-in butterfly plate.
Structural features:
1. Butterfly valves have the characteristics of simple structure, small volume, 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.
2. Butterfly valves can transport mud and accumulate less liquid at the pipeline outlet. Under low pressure, good sealing can be achieved. Good regulation performance.
3. The streamlined design of the butterfly plate reduces fluid resistance loss, making it an energy-saving product.
4. The 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 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.
The above prices are for reference only
