Ultraweld Coat Pvt. Ltd. are renowned as the best Butterfly valve manufacturer in Pune. A butterfly valve is a type of quarter-turn rotational valve used to regulate the flow of liquids or gases through a pipe. It is named for its resemblance to a butterfly's wings due to the disc-shaped closure element inside the valve. Overall, butterfly valves are valued for their efficiency, space-saving design, and versatility, making them a popular choice for many fluid control applications. As a leading Butterfly valve suppliers in Pune, our material typically made from stainless steel, aluminum, or plastic, chosen based on the fluid's chemical and temperature characteristics.
Butterfly valves are ideal for compact and quick-isolation systems:
A compact, lightweight profile makes installation easy and saves critical spatial footprint.
Requires fewer components, reducing initial investment and long-term maintenance costs.
Provides superb throttling and control capability for high-volume piping systems.
Capable of precise flow control, though the exact control can vary depending on the valve design and application.
Our disc material typically made from stainless steel, aluminum, or plastic, chosen based on the fluid’s chemical and temperature characteristics.
Butterfly valves can be installed in different orientations and configurations, such as between flanges (wafer-type) or directly bolted (lug-type).
| Design | Seat | Typical use |
|---|---|---|
| Concentric | Resilient liner; the disc is centred in the bore | Water, air and other low-pressure utilities |
| Double offset (high performance) | Polymer or metal; the disc lifts off the seat as it opens | Higher pressures and temperatures, with less seat wear |
| Triple offset | Metal; a cone-shaped seating geometry with no rubbing | Steam, hydrocarbons and high-temperature isolation |
Each added offset moves the disc further off the seat during the turn, so the sealing faces touch only at the moment of closing. In a triple offset valve that makes a metal-to-metal seal practical, with tight shut-off and long seat life.
In metal seated butterfly valves the disc edge and seat ring carry the sealing load. Hardfacing with Stellite or a tungsten carbide coating protects them against erosion, and precision grinding gives the geometry the seal depends on.
In large pipe sizes a butterfly valve is far shorter and lighter than a gate valve and opens with a quarter turn. A gate valve leaves the bore completely clear when open, which matters where the line is pigged or pressure drop must be minimal.
The shaft is offset from the seat plane, from the pipe centreline, and the seat cone is inclined. Together these let the disc swing clear of the seat, so a metal seat can seal without rubbing.
Yes. A butterfly valve regulates flow well and is widely used for throttling, particularly in large pipe sizes. Control is most effective in the middle of the disc’s travel; close to the shut position, a small movement of the disc causes a large change in flow.
A lug type butterfly valve. Its body has threaded lugs, and each pipe flange is bolted to the valve independently. The downstream piping can therefore be removed while the valve stays bolted to the upstream flange, provided the valve is rated for that dead-end service.
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