Vanne papillon excentrique

Eccentric butterfly valves are mechanical devices used to control the flow of fluids in pipelines. They derive their name from the shape of the disc, which is offset from the centerline of the valve body. This eccentric design allows the disc to seal against the valve seat with minimal friction and wear, enhancing sealing performance and longevity.

Structure and use

The primary components of an eccentric butterfly valve include the valve body, disque, stem, seat, and actuator mechanism. The disc, typically made of metal or synthetic material, is mounted on a shaft positioned eccentrically within the valve body. When the valve is in the open position, the disc rotates parallel to the flow direction, allowing fluid to pass through. Conversely, when the valve is closed, the disc rotates perpendicular to the flow, creating a tight seal against the seat to prevent leakage.

Features

• Eccentric Disc Design: The distinctive feature of eccentric butterfly valves is their eccentrically mounted disc, which ensures a bubble-tight seal and minimizes wear and friction during operation.
• Offset Shaft Position: Eccentric butterfly valves feature an offset shaft position that enables the disc to rotate away from the seat during operation, reducing friction and wear on the sealing surface.
• Efficient Flow Control: Eccentric butterfly valves offer efficient flow control across a wide range of applications.
• Enhanced Performance in High-Pressure Applications: Eccentric butterfly valves are well-suited for high-pressure and high-temperature applications due to their robust construction and superior sealing capabilities.
• Space-Saving Design: The compact design of eccentric butterfly valves makes them suitable for installations where space is limited.

Applications Across Industries

1.Water and wastewater treatment
2.Traitement chimique
3.Oil and gas
4.Power generation
5.HVAC (Heating, Ventilation, and Air Conditioning)
6.Food and beverage
7.Pharmaceutical

Les vannes papillon comprennent vanne papillon triple excentrique, vanne papillon à double excentrique , Vanne papillon à double excentrique en fonte ductile et d'autres produits de vanne papillon connexes.