A Butterfly valve is a quarter-turn gyratory motion valve, that is employed to start, regulate, and stop the flow. It has a disc that is fixed on a revolving shaft. When the butterfly valve is fully fastened, the disk totally blocks the line. When the butterfly valve is opened fully, the disc is at a right angle to the stream of liquid or gas.

Components of Butterfly Valves

Butterfly Valves has 4 major components, these are:

Body

Butterfly valves usually have bodies that fit between two flanges of pipes, the most prevalent being lug and wafer structured design.

Disk

The disk is how the valve averts flowing. It is equal to a gate in a gate valve, a plug in a plug valve, or a ball in a ball valve. There are disparities in disk design and alignment in order to improve flow, sealing, and/or operating torque.

Stem

The butterfly valve stem is a single-piece shaft or a two-piece (split-stem) design. The stem in most robust seated designs is secured from the media, thus granting an efficient choice of material with respect to price and mechanical characteristics.

Seat

The seat of a strong-seat butterfly valve utilizes an intrusion fit between the seat and the disk edge to offer shutoff. The eat material can be fabricated from many different elastomers or polymers. The seat may be merged to the body, or it may be locked or pressed in.

Benefits

1. Butterfly valves require less space to adjust.
2. It is very convenient and fast to open them.
3. Less maintenance, if required, for their upkeep.
4. They are cost-effective valves.
5. Their operation is also very efficient.

Applications

Thebutterfly valve makersprovide the butterfly valves for vacuum services, compressed air and gas applications, cooling water, air, gas, water protection, slurry, and similar services.