Sedelon Valves Type Butterfly Valves

A Butterfly valve is a valve which can be used for isolating or regulating flow. According to DIN design standard, Sedelon® can provide you DIN Butterfly valves.

The body of Butterfly valves may be made of metals. Such as: Forged Steel Butterfly valves, Stainless Steel Butterfly valves, Alloy Butterfly valves, Bronze Butterfly valves Cast Steel Butterfly valves and Carbon Steel Butterfly valves ect,. Sedelon® mainly produces Forged Steel Butterfly valves according to the standard of API 609 and Stainless Steel Butterfly valves according to the standard of API 603, we call them API 609 Forged Steel Butterfly valves and API 603 Stainless Steel Butterfly valves. The body can also be made of Non-metal Materials. For example, Ceramic Butterfly valves are erosion-resisting, wear-resisting, cavitation-resisting and antioxidant.Besides that, some Butterfly valves materials are special, like:Special Alloy Butterfly valves, Special Steel Butterfly valves and Hastelloy Butterfly valves ect.Transmitting and processing of media that are heavily corrosive, Duplex Stainless Steel Butterfly valves or super Stainless Steel Butterfly valves are usually selected to mitigate the problems for they can work well in the area with corrosive surroundings.

According to the connection type, Butterfly valves can be divided into 4 types.

1、Wafer Butterfly valves

Equipped with a tightly fitting seal, o ring and a flat valve face, Wafer Butterfly valves have a good control of flow, which assuring unidirectional flow.

2、Flanged Butterfly valves

These Flanged Butterfly valves are with flanges on both ends. The flange ends connect with the flanges on the pipeline by bolts.

3、Lug-Style Butterfly valves

A Lug-Style Butterfly valve has a function of reducing pressure rating.

4Welded Butterfly valves

Butt Weld Butterfly valves and Socket Weld Butterfly valves are two commonly used Welded Butterfly valves. These kinds of valves are of enclosed type, helping to both on-off and regulate service.