The butterfly valve is suitable for flow regulation.
Since the pressure loss of the butterfly valve in the pipeline is relatively large,
it should also be considered that the butterfly plate is subjected to the firmness
of the pressure of the pipeline medium when it is closed.
In addition, the limits of the operating temperature
of the elastomeric seat material
at elevated temperatures must also be considered.
The butterfly valve has a small structural length and overall height,
a fast opening and closing speed,
and good fluid control characteristics.
The structural principle of the butterfly valve
is most suitable for making a large diameter valve.
When a butterfly valve is required for control flow,
the most important thing is to properly select the size and type of butterfly valve
so that it can work properly and efficiently.
Good Supplier Electric Actuated Butterfly Valves
are designed and manufactured to provide the best cycle life
and isolation function on the market.
We fit some of the world’s leading manufacturers butterfly valves,
which come in a multitude of ranges in different sizes,
materials, specifications, and approvals, on to our quarter turn electric rotary actuator,
which is supplied with many standard features
but can be accessorized to accomplish virtually any of your control requirements.
Supplied in most standard voltages.
What is an electric actuated butterfly valve?
A butterfly valve is a valve used for flow regulation in large pipe diameters
in which the disc takes the form of a disk.
Operation is similar to that of a ball valve.
A plate or disc is positioned in the center of the pipe.
The disc has a rod passing through it
that is connected to an actuator on the outside of the valve.
Rotating the actuator turns the disc
either parallel or perpendicular to the flow.
Unlike a ball valve, the disc is always present within the flow,
therefore a pressure drop is always induced in the flow,
regardless of valve position.
Actuated Butterfly Control Valves,
control the flow of gas or liquid utilizing a disk,
which turns on a diametrical axis inside a pipe
or by two semicircular plates hinged on a common spindle,
which permits flow in only one direction.
These valves offer a rotary stem movement of 90 degrees or less, in a compact design.
Unlike ball valves,
they do not have any pockets in which fluids
may become trapped when the valve is closed.
They are quick opening valves that consist of a metal circular disc
or vane with its pivot axes at right angles to the direction of flow in the pipe,
which when rotated on a shaft, seals against seats in the valve body.
They are normally used as throttling valves to control flow.
From a family of valves called quarter-turn valves,
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.
The valve may also be opened incrementally to throttle flow.
High-performance butterfly control valves are intended for general service applications
not requiring precision throttling control.
They are frequently used in applications requiring large sizes
and high temperatures due to their lower cost relative to other styles of control valves.
Care is required in sizing and applying this style of the valve
to eliminate control problems associated with process load changes.
They work quite well for constant process load applications.
Designs using characterized contour can expand the control range
to that of a segmented ball valve.
Available end connection styles include wafer, lugged, and double flange.
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