China Lug Butterfly Valve,Lug Butterfly Valve Manufacturer
Gate valve
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Butterfly valve
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Lug type Butterfly Valve
Lug type valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and NO nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.
A lug style butterfly valve used in dead end service generally has a reduced pressure rating. For example a lug type butterfly valve mounted between two flanges has a 150 psi pressure rating. The same valve mounted with one flange, in dead end service, has a 75 psi rating.
