Types of Ball Valve

A Ball Valve is a flow control device with a hollow, pivoting ball to control liquid flow. When the ball's hole lines up with the flow inlet, the valve is open. It closes when the valve handle pivots the ball 90 degrees. The ball's hole is usually located at the inlet end.

One-piece ball valve

There are many advantages of using a One-piece ball valve. This type of valve reduces the size of the actuator, has a simple structure, and is easy to replace or dismantle. These valves are also less expensive than other types. This is a relatively new type of ball valve, and offers some unique advantages.

A two-piece ball valve is very similar to a one-piece ball valve, but it has a flange on each side of the valve body. This valve is also easy to maintain, has a small volume, and is compact and lightweight. Ball valves are most often used for distributing, limiting flow, or changing flow direction.

One-piece ball valves are a popular choice for many industrial applications. Their low cost and robust construction make them an excellent choice for a variety of applications. However, one piece ball valves do have some drawbacks. Because they are made of one piece of metal, the ball is much smaller than that of two-piece valves, which results in a smaller port or bore. As a result, the flow through the valve will be lower.

A three-piece ball valve, on the other hand, consists of a body and end caps that attach to the pipe. It is more convenient than two-piece valves because it allows for easy disassembly and service. Also, it is easier to change elastomers in a three-piece ball valve.

Extended bonnet ball valve

An Extended Bonnet ball valve is a type of ball valve that uses a stem extension to increase the valve's stem seal integrity. They are made from a wide range of materials and can be retrofitted to existing valves in the field. Some are even available as kits, with the bonnet and stem assembled and torqued for reliable operation. These valves can be fitted with a variety of packings and glands.

Flowchem extended stem ball valves provide excellent performance in both high and low temperature applications. Their design moves the stem seal away from the flow of process fluid and reduces the temperature of the stem seal. They also allow for easier adjustment of the stem packing since it does not affect the installed insulation. This also allows for easy leak detection without having to remove insulation. These valves have a fully welded body and two welding seams to eliminate the need for nuts or bolts.

Extended bonnet ball valves are available in a wide range of sizes from 1/2" to eight inches and from 15mm to 200mm. They meet the same requirements as standard class 600 valves and provide excellent performance in both high and low temperatures. In addition, extended bonnets allow insulation to be applied to the bonnet, which helps keep fluid temperatures closer to ambient. Additionally, extended bonnets are easy to replace if the main parts of the valve are damaged.