A butterfly valve is a rotating motion valve with a quarter-turn rotation that helps to stop and regulate.
Butterfly valves are simple and quick to open. A 90° rotation of the handle closes or opens the valve completely. Large butterfly valves are typically equipped with a gearbox, which connects the handwheel to the stem through gears. It makes the valve operation easier, albeit at the sacrifice of speed.
Different Types of High performance Butterfly valves
Butterfly valve manufacturers build several types of valves for industrial purposes. Butterfly valves are distinguished by their short circular bodies, round disc, metal-to-metal or soft seats, top and bottom shaft bearings, and stuffing box. The body of a butterfly valve varies in construction. The wafer design, which fits between two flanges, is a popular choice. On the other hand, the lug wafer design is held between two flanges by bolts connecting the two flanges and pass-through holes in the valve’s outer casing. Butterfly valves are also available with flanged, threaded, and welded ends. However, these are rarely used.
Butterfly valves manufacturers are especially good at handling large flows of low-pressure gases and slurries or liquids with many particles suspended in them.
Butterfly valves work on the same concept as pipe dampers. The flow control device is a disc that rotates on a vertical or horizontal axis and has the same diameter as the inside diameter of the neighboring pipe. The valve is fully opened when the disc is parallel to the piping flow. The valve closes as the disc approaches the perpendicular. Handle-locking devices can hold intermediate positions in place for throttling purposes.
Butterfly Valve Seat Construction
Flow is stopped by the valve disc sealing against a seat on the inside diameter peripheral of the valve body. In most butterfly valves, the disc seals against an elastomeric seat. Other butterfly valves use a clamp and backing ring on a serrated-edged rubber ring. This design prevents the O-rings from extruding.
Butterfly valve Body Design
The body architecture of butterfly valves varies. The wafer type, which fits between two pipeline flanges, is the most cost-effective. On the other hand, the lug wafer design is held between two pipe flanges by bolts connecting the two flanges and pass-through holes in the valve’s outer casing. Butterfly valves have standard flanged ends for bolting to pipe flanges and threaded ends.
Different Types of Butterfly Valves
The butterfly valve can be used in different fluid services and works well in slurry applications. The following are some common uses for butterfly valves.
- Water cooling, air conditioning, and fire protection are just a few examples.
- Slurry and comparable services
- Service for vacuuming
- Water and steam services at high pressures and temperatures
Benefits of Butterfly Valves
- Compared to other valves, the compact design takes up significantly less room.
- It is light in weight.
- Quick operation necessitates less time to open and close.
- Large sizes are available.
- Drop in low pressure and recovery in high pressure
Installation of High-performance Butterfly valves
Like extended stem butterfly valves, installing high-performance butterfly valves depends on the requirement. Butterfly valves are typically fitted with the stem vertically, and the actuator mounted vertically directly above it; nevertheless, there are specific instances where the stem should be horizontal. Contact butterfly valves manufacturers to discuss your requirements and to get the best quality of products. Advance Volve is one such name in the industry, you can rely on. You get the best quality products here.