JNC rotary valves are highly effective in minimizing dust leakage, even when handling fine and abrasive materials such as cement or sand.
Our valves are designed with precision-machined housings and close rotor-to-body clearances to ensure an excellent airlock seal. To further reduce the risk of dust leakage, especially at shaft ends, we offer advanced sealing options to maintain tight tolerances over time.

These features ensure stable system pressure, reduce maintenance frequency, and significantly limit dust emissions into the surrounding environment—making JNC valves a reliable choice for heavy-duty dusty applications.