Lists different types of butterfly valves
There are undoubtedly different types of butterfly valves where each
of the types are meant to cater to different pressures and serve
distinctive purposes. Concentric Butterfly valves are a kind of valves
that feature a strong and a robust rubber seat with a metallic disc.
Double Eccentric Butterfly valves are also known as high performance butterfly valvesand in preparing this type of valves different kinds of materials are
used for both the disc and the seat. The third type of valve is called
Triple Eccentric Butterfly Valves that are also known as Triple Offset
Butterfly Valves and in this kind of valve the seats consists of metal
or are laminated. The butterfly valves feature different kinds of
mounting methods such as wafer-style butterfly valves and lug-style
butterfly valve. In the first instance, the butterfly is designed in a
manner that it maintains a seal against the bi-directional pressure to
avoid backflow. In the second instance the valves contain threaded
inserts at both the sides of the valve body.

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