Butterfly Valve: It’s Working and types

Butterfly pressure is a flow control device that isolates or regulates any fluid flow. The closing mechanism is a rotating disk, unlike a ball valve. With its use that develops in all different industries, the butterfly valve castings are very high, globally.

How is the operation?

The basic principle of operation is identical to the ball valve, which makes it possible to close the fast flow. The basic function of the butterfly valve function is:

The disk is placed in the middle of the pipe.

A stick passes the disk into the actuator placed outside the valve.

By turning the actuator, the disk can be rotated parallel or perpendicular to the flow.

Unlike the ball valve, due to the existence of a constant disc in the flow, there is a decrease in the pressure that is induced even when open.

Meson Group | Butterfly Valve L DN250 JIS 5K

image source : google

Various types of butterfly valves:-

There are various types of butterfly valves available according to different pressures and use. The most common type is-

Wafer Style Butterfly Valve: This type of butterfly valve has been designed to maintain a blockage against a two-way pressure gap, to stop it from flowing back into the system intended to have a direct flow.

Lug-style butterfly valve: In this type of valve, both ends of the body have threaded inclusions that allow valve installation into a system that only has a set of two bolts, without beans.

Rotary Valve: This type of valve consists of a variety of basic butterfly valves where the bag is inserted in a butterfly as an alternative for flat.