What is the function of butterfly valve?
Subsequently, one may also ask, how does a butterfly valve work?
The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid.
Also, do Butterfly Valves have a flow direction? The butterfly valves are bi-directional but do have a preferred flow direction. It's however strongly recommended to install the valves in the preferred flow direction, as it will extend the valve's life span and will also lower the operating torque.
Keeping this in view, what does a butterfly valve look like?
Butterfly valves use a flat circular disc to control the flow of system product in a piping system. When the edge of the disc faces the system product flow, the valve is in the fully open position. Butterfly valves are also used for throttling. Butterfly valves are classed as quarter turn, straight line valves.
Is a butterfly valve An isolation valve?
Butterfly valves find use only in low pressure and low temperature flow systems. Lightweight and short face-to-face dimension, they can be used both for isolation and regulating the flow of material using their characteristic quarter turn rotating action.