Industrial Butterfly Valves – Wafer, Lug, Flanged & More Industrial butterfly valves are one of the most commonly used flow control devices in process industries. Their compact design, cost-effectiveness, and ease of operation make them ideal for a wide range of applications, from water treatment and HVAC to chemical processing and oil & gas. In this guide, we explore the key types of butterfly valves—including wafer, lug, and flanged...