What is a Cast Iron Butterfly Valve? Cast iron butterfly valves are quarter-turn valves that are popular for on-off or modulating services. They are lightweight, have a small installation footprint, lower cost, quick operation, and are available with large orifice sizes. The “butterfly” is a disk connected to a rod. When the valve opens, the disk rotates to allow fluid to pass through. It closes when the rod rotates the disc by a quarter turn to a position perpendicular to the flow direction. Wafer-style Cast Iron Butterfly Valve The most cost-effective version, a wafer-style butterfly valve sandwiches between two pipe flanges. Long bolts that cross the entire valve body connect the pipe flanges. This connection type is suitable for sealing against bi-directional differential pressures and preventing backflow in systems designed for universal flow. Some versions of this valve have flange holes outside the valve body. Gaskets, O-rings, and flat valve faces on both sides of the valve combine together to accomplish efficient sealing. Check out our range of wafer-type butterfly valves here! The two common methods are: Hand lever: A hand lever is common for small butterfly valves. The handle enables the valve to be locked into an open, partially open, or closed position. Extended spindle butterfly valves have long stems allowing remote operation of the valve when it is underground or within a pit. Gear: These are designed for slightly larger butterfly valves and utilize a gearbox to increase torque at the expense of decreased speed of opening/closing. Gear-operated valves are also self-locking (cannot be back-driven) and can be equipped with position indicators. Check out our range of lug-type butterfly valves here! Experience Unmatched Performance with Our Cast Iron Butterfly Valves Are you tired of dealing with unreliable valves that fail to deliver on their promises? Do you need a valve that can handle the toughest industrial applications without breaking a sweat? Look no further! Our Cast iron butterfly valves PN10 with D.I / CF8 / CF8M Disc are engineered to exceed your expectations and provide unparalleled performance in any situation. Discover the Power of Precision Engineering: Our Cast iron butterfly valves PN10 with D.I / CF8 / CF8M Disc are crafted with precision engineering to ensure smooth and reliable operation. Say goodbye to leaks and disruptions in your workflow, and say hello to a valve that performs flawlessly under high pressure and temperature conditions. Whether you’re in the chemical, oil and gas, or water treatment industry, our butterfly valves are designed to meet your specific needs. Transform Your Operations with Cutting-Edge Features: Durable Cast Iron Construction: Built to last, our butterfly valves are constructed from high-quality cast iron, ensuring longevity and resistance to corrosion. Versatile PN10 Pressure Ratings: With flexible pressure ratings, our valves adapt to various system requirements, making them suitable for a wide range of applications. Bi-Directional Sealing: Our valves provide bi-directional sealing, minimizing the risk of leakage and reducing maintenance costs. Experience Unmatched Benefits: Increased Efficiency: Enjoy smooth operation and precise flow control, leading to enhanced productivity and reduced downtime. Cost Savings: Our durable valves require minimal maintenance, saving you time and money in the long run. Reliable Performance: Rest easy knowing that our butterfly valves deliver consistent results, even in challenging environments. Safety First: With a strong focus on safety, our valves undergo rigorous testing to meet industry standards and regulations. Check out our wide range of butterfly valves and make your purchase today!