NIBCO, SLBF4L1VPS01, Sure Seal Lug Style Lined Butterfly Valve, 316L Stainless Steel Disc/Stem, Lever Locking HandleFeatures:Designed and engineered for demanding applications in corrosive, sanitary and ultra-pure processes.Unique benefits in design and a wide range of options allows the Sure Seal LBF lined butterfly valve to provide superior service.Non-wetted, 360° radially-loaded, elastomeric energizer is engineered to provide uniform pressure to the outer circumference of the liner and disc, ensuring absolute bubble tight shut-off.Unique, spherically-shaped disc and liner eliminates the axial cold flow and deformation problems typical of conventional lined butterfly valves, resulting in a reliable, maintenance-free, environmentally safe stem seal.ISO 5211 mounting flange allows the direct mounting of actuators, eliminating hysteresis and costly automation hardware.LBF design features spherically-molded and machined, wide-liner sealing surfaces that are securely anchored within the faces of the valve body by a series of concentric serrations, resulting in the reduction of radial cold flow.Robust body construction is designed to be as strong as the PN10/16 counter flanges to which it will fastened - eliminating deflection problems and resulting in improved flange sealing properties.Polyester Polyurethane powder coating for external corrosion protection Ideally suited for chlorine gas service.NIBCO® Sure Seal® Lined Butterfly Valves feature "the most effective technology" for controlling and isolating corrosive, high-purity and abrasive process media. The valves incorporate the absolute highest standards of quality, performance, safety, and reliability that are required by the most demanding industries.For more information, please see Data Sheet.