important parts of butterfly valves
One of the most important and significant parts of the Butterfly Valve is the
resilient seat. This seat allows a seal to be formed around the upper and lower
points at the stem and disk edges when compression or pressure is applied. Other
parts of the butterfly disk are the butterfly disk itself, the actuator, body, a
notched plate used for positioning the valve and the packing. If the seal is
damaged, packing acts as backup security giving an additional seal around the
stem of the butterfly valve for additional security and protection.
There is a wide range and variety of Butterfly Valves available on the industrial market today with the best type by far
being those configured for pneumatic control. These disks actively make use of
an interactive gearbox and receive a signal from the valve operator for both
opening and closing the electric ball valve. Flexibility and ease of use are the
main advantages to this type of butterfly valve as it allows the option of
single or double actuation by the valve operator. With single actuation, a fail
safe is vital because in the event of a power loss the valve will still be able
to be closed securely. Double action valves, which do not loaded with a spring,
require signals each time they are opened or closed by the valve operator.
More products of valves
