B5107V300CC Dixon Valve 3" 316L Stainless Steel Sanitary Clamp End Butterfly Valve - FKM SeatsFeatures: Hex head body bolts eliminate the recessed cavity found in socket head body bolts, reducing the potential for bacterial buildup. Sizes 1 2" to 4". Body design enhances the exterior cleanability and drainability of the valve by utilizing a large machined chamfer between the flange face and the tube OD. New EPDM with self lubricating properties and silicone rubber help to reduce break torque and provide added durability to valve seats.