Tilting Disc Tilting Disc Check Valve - Pressure Seal Bonnet | Fluitek Fluitek Valves Tilting Disc Check Valve - Pressure Seal Bonnet | Fluitek The Tilting Disc Check Valve with a Pressure Seal Bonnet by Fluitek, also known as an equilibrated disc non-return valve, is designed to prevent reverse fluid flow in high-pressure lines when the regular flow is halted. Its non-slam feature ensures that the disc returns to the closed position smoothly, avoiding sudden impacts against the seat. The valve... View