Lug-style butterfly valve
Size: 2â€³~36â€³ (DN50mm~900mm)
Pressure: 150Lb~300Lb (1.0~1.6MPa)
Material: Carbon Steel, Stainless Steel
Lug-style 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-style 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.
Packing material must also be considered during valve selection. While more complex, it allows for constant packing force load throughout the life of the packing material. This packing helps meet contemporary environmental laws.
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