A hydraulic ball valve is a type of industrial valve
used to direct and control fluid in hydraulic systems.
Typically constructed from steel, stainless steel, or brass,
industrial valves are often required to work at high pressures and temperatures.
As the hydraulic ball valve is one sub-category of the ball valves,
to explain a hydraulic ball valve, we need to explain the ball valve first.
What is a ball valve?
Ball valves, as its name suggests, are stop valves that use a ball to stop or begin a stream of fluid.
The ball performs the same function as the disc in other types of valves.
Since the valve handle is turned to open the valve;
then the ball rotates into some stage where a part or all the hole through the ball
is in line with the valve body, enter port and export, permitting fluid to flow through the valve.
After the ball has been rotated, so the hole is perpendicular to the flow openings of the valve body,
the flow of fluid ceases.
Most industrial ball valves would be the quick acting kind.
They need just a 90-degree twist to open or shut the valve completely.
But many are operated by planetary gears.
This sort of gearing enables a relatively little handwheel
and functioning power to operate a rather large valve.
The gearing does but increases the working period for the valve.
Hydraulic ball valves are characterized by the following features:
Low fluid resistance: The complete bore ball valve has no flow resistance.
High pressure: The maximum working pressure can be up to 7500 psi (500 bar),
depends on the sizes and connection type.
Because of this, hydraulic ball valves are also known as high-pressure ball valves.
Block body: Different from the other types of ball valves such as one-piece ball valves,
two-piece ball valves, three-piece ball valves, fully weld ball valves,
and so on, the hydraulic ball valves body are in Square shape (Cuboid or cube).
Leak-free and reliable: It has two sealing surfaces, and currently,
the ball valve sealing surface materials are primarily in a wide range of plastics.
Good sealing can achieve a complete seal.
It has also been widely used in vacuum systems.
Hydraulic ball valves are with simple structure, small in size, and light in weight.
Easy to operate, fast to open and close, from fully open to fully completed,
the rotation only is 90 degrees, so it is easy for remote control.
Easy maintenance, ball valve structure is simple.
The seal ring is generally active; removal and replacement are more convenient.
What is the working principle of hydraulic ball valves?
The high-pressure ball valve has the action of rotating 90 degrees.
The plug body is a sphere and has a circular through-hole or passage through the axis.
The ball valve is mainly used in the pipeline to cut off,
distribute and change the direction of the flow of the medium.
It only needs to rotate with 90 degrees of operation,
and a small rotational torque can close the tight.
The ball valve is most suitable for a switch or shut-off valve,
but recent developments have designed the ball valve to have a throttling and control flow,
such as a V-ball valve.
What are the different types of hydraulics valves?
Hydraulic ball valves typically have two or three ports, often referred to as 2-way or 3-way.
A handle or lever manually operates most.
A 2-way ball valve is an in-line valve with a threaded connection at either side of the valve body.
When this type of valve is open, the lever will be in line with the pipework.
When closed, the handle will be at 90 degrees to the pipe.
The flow of media goes from the input to the output.
A 3-way ball valve has a T or an L-shaped bore.
The body on a 3-way valve will have three threaded connections.
The flow direction on a 3-way valve will have various flow paths depending on the handle's direction.
3- way valves are ideal for mixing or distributing flows.
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