Connected with threaded inserts at both sides of the valve body, the Lug-style valves suits to be installed into a system using two sets of bolts and no nuts. The valve has to be installed between two flanges using a separate set of bolts for each flange. With this setup each side of the piping system could be disconnected without disturbing the other side.
Usually a Lug-style butterfly valve, when used in dead end service, has a reduced pressure rating. The body lining of rubber vulcanization ensure a stable driving torque. Furthermore, the ends of Body Rubber vulcanization are easy to plug water line to fulfill various forms of the flange sealing requirements.