Ventilation Butterfly Valve

Air and dust pipes need a valve with very low flow resistance. Our Ventilation Butterfly Valve is the best and cheapest choice. The body is made of welded steel plate. It is light and thin. The flow area is very large. The disc has a flat plate structure. When open, it sits almost parallel to the airflow. So the flow resistance is very low. This valve does not use rubber or PTFE on the seal face. It uses metal-to-metal contact. Or it does not need perfect sealing. The leak rate is kept under 1%. The main job is to adjust air volume or stop airflow. The stem connects to the disc with a pin or a key. You can use a hand lever, a worm gear, or a pneumatic actuator.

We have been a valve factory since 1992. We have a lot of experience in ventilation and dust removal projects in steel and building material plants. We made large-sized Ventilation Butterfly Valves for many cement kiln dust removal systems. We improved the rib plate design. This stopped the disc from shaking under high air pressure. Compared to cast valves, our welded Ventilation Butterfly Valve costs less. The delivery time is shorter. It is the best choice for large air pipes. Our factory covers over 10,000 square meters. We can cut, roll, weld, and machine large plates. For special sizes, we can make and deliver your Ventilation Butterfly Valve in just 15 to 20 days.