Valve Disc Part for Butterfly Valve

The name of the butterfly valve derives from its wing-like disc, which rotates around its axis and can open or close the valve with only a 90-degree turn. Butterfly valves are widely used in general industries such as petroleum, chemical engineering, urban water supply and water treatment. They are also suitable for condensers and condensed water systems in thermal power plants.

The main core components of a butterfly valve are the disc and seat that come into contact with the medium, so the selection of their materials is particularly important. As the closing part of the valve, the butterfly valve disc mainly uses common materials including ductile iron, stainless steel, duplex stainless steel and aluminum bronze to adapt to different media and industrial applications.

● Ductile iron valve disc part for butterfly valve

● Stainless steel valve disc part for butterfly valve

● Duplex valve disc part for butterfly valve

● Bronze valve disc part for butterfly valve

The surface treatment of the center-line disc for butterfly valves is also particularly important, requiring a reliable choice that balances cost and performance. Common surface treatment methods include electroplating, spraying, nylon coating, Heler coating, PTFE lining, rubber lining, polishing, etc.