“Nilon” Series Butterfly Valve are the best used in the industry, the range varies from wafer type lift & swing type non return valve Nilon swing check valves are provided with properly guided swing disc through a hinge. The hinge and swivel disc are connected maintaining sufficient flexibility for smooth and efficient sealing. “Nilon” Series non return valve are available with metal-to-metal sealing for high temperature and pressure; soft sealing for pneumatic and vacuum applications. Designed to ensure full flow, efficient function and minimum pressure drop across the valve.