Of all the types of valves available on the market for
liquids, ball valves are probably the most common. Their popularity of this
valve comes from the ability to be used in a wide variety of applications,
providing positive sealing even after years.
The name high pressure ball valve refers to the
functioning part of the valve, which as opposed to being a gate is an actual
ball. There is a hole drilled through the valve, for the fluid to pass while
open. The actuator is attached to the high pressure ball valve, at ninety
degrees from this hole. When it is turned ninety degrees, it puts the hole
perpendicular to the opening in the pipe, presenting a solid area to the flow
path.
Due to its basic design, high pressure ball valves are
highly versatile. They can withstand high pressure without any damage, and
easily adapt to either manual or solenoid operation. The design also adapts
quickly to various materials, permitting the same basic design to be used for
corrosive liquids as well.
Since there is only one moving part, and very limited
possibility of abrasion, ball valves are very long lasting. Unlike other
valves, they do not need to be lubricated as a protection from the elements.
Another type of ball valve, called a 3-way valve has the
hole drilled through the ball in such a way as to form a ninety degree elbow.
With this design, the valve can be used as a diverter valve, dividing an
incoming liquid stream into either of two different directions, or shutting off
the flow entirely. Another variation is the 4-way valve has a T drilled through
the ball, allowing it to connect any three of four ports for more complicated
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