What is a Butterfly Valve?

Butterfly Valve

A Butterfly Valve is a quarter-turn rotational motion valve used to stop, regulate, and start flow. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. They are favored for their compact design and cost-effectiveness in large pipe diameters.

Working Principle

The butterfly valve operates by rotating a disc 90 degrees within the pipe. The disc is connected to an external handle or actuator via a shaft. In the 'open' position, the disc is parallel to the flow, allowing fluid to pass around it. In the 'closed' position, the disc is perpendicular to the flow, sealing against a resilient or metal seat to stop the fluid. This simple yet effective mechanism allows for quick operation and reliable throttling capabilities.

Technical Specifications

Size Range 2" to 36" (DN50 to DN900)
Pressure Rating PN10, PN16, Class 150
Material CI, DI, WCB, Stainless Steel (CF8/CF8M)
Temperature Range -10°C to 200°C (resilient seat)
End Connections Wafer, Lug, Flanged
Design Standards API 609, AWWA C504, BS EN 593

Why Infinity Flow Control Butterfly Valves?

As a leading butterfly valve manufacturer in Ahmedabad, Infinity Flow Control provides valves that are synonymous with quality and durability. Our butterfly valves are engineered to meet the most stringent international standards, ensuring they perform reliably even in the most demanding industrial environments. We use high-grade materials and advanced manufacturing processes to produce valves that offer exceptional service life and minimal maintenance requirements.

Whether you need a wafer type for space-saving installations or a lug type for end-of-line service, our extensive range of butterfly valves has you covered. We offer various seat materials, including EPDM, Nitrile, and Viton, to suit a wide range of chemical compatibilities and temperature requirements. Our technical team is always available to help you select the right valve for your specific application, ensuring optimal performance and safety in your piping systems.

Expert Flow Control Solutions

Contact Infinity Flow Control for premium butterfly valves and technical guidance.