Butterfly valve types

A distinct feature of a butterfly valve is it can cope with high-pressure recovery, but can only accommodate low-pressure drops. This is true especially when it’s function is to handle large amounts of liquids or gases at low pressure differentials, such as in a hydroelectric power plant MIV system. Hence, depending on your application, it need not be opened more than 60 or 70 angular degrees from its closed position.

Overall, you can use butterfly valves in a wide variety of industrial applications for throttling, flow control, and pressure control purposes. You may also choose from sizes 2 to 60 in.

Butterfly Valve Types by End-Connection Styles

The end-connection of the valve body is the most common classification for butterfly valve types. Basically, the most popular there is are the wafer and a semi-lug and lug type valves, but there’s also the flanged butterfly valve and butt welded type.

Both Flanged Ends

Wafer Type Ends

Lug Type Ends

Butt Welded Types Ends

Butterfly Valve Types by Seat Design

Soft Seated PTFE

Soft Seated RTFE

Metal Seated (Stainless steel 316L/Inconel seats)

Butterfly Valve Types by Body Material

Carbon Steel, Stainless Steel, Duplex Steel and so on.

Butterfly Valve Types by Offset Design

Zero Offset/Concentric Disk (A609 Type A)

Double Offset (API 609 Type B)

Butterfly Valves According to Mode of Operation

Electric Butterfly Valves

Pneumatic Butterfly Valves

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Created on Sep 14th 2022 02:44. Viewed 156 times.

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