Wednesday, November 11, 2015

Ball valve function

Production of Industrial Valve s. Can a ball valve be used as a control valve? What is a standard ball valve? It is in the same valve family as butterfly valves and plug valves , which are also quarter-turn valves.


The sphere has a port, or a bore, in its center,.

The handle lies flat in alignment with the flow when open,. The seat matching the ball is circular so that the seating stress is circumferentially uniform. Most ball valves are also equipped with soft seats that conform readily to the surface of the ball. They are the industry standard for pipeline shut-off applications, as their design guarantees very tight and leak-free sealing even after years of operation.


The two key types of ball valves are the floating and the trunnion designs (side or top entry). A ball valve features a spherical disc to open and close the flow of the fluid. They are considered quick-acting because they only require a 90° turn of the handle to operate the valve.


The quarter turn minimizes valve operation time and decreases the possibility of leakage due to wear.

Function : The main function of a Ball Valve is sealing of the flow. This will cause damage the ball due to erosion on the ball it selves. Operation: Ball Valves are probably the type of Valve with the highest failure rate of all Valves. After watching this one and a half minute presentation, anyone can learn what a Ball Valve is and how is works. Valve serve a various function within the piping system.


Stopping and starting a fluid flow. Depending on whether a valve is open or close it let pass the process fluid or halt the fluid. Throttling the fluid flow. Some of the valves let you throttle the fluid depending open of total opening.


Request More Information. Taking apart a true union ball check valve is simple: 1. Unscrew the ends from the body of the valve and set them aside. Remove the rubber seal and plastic ring. The function of ball valve is to cut, distribute or change. These valves are known for being durable with excellent shutoff, but don’t always offer very precise control.


Instead of a ball controlling flow, this valve uses a small door on hinges that opens when water is drawn in and closes when the flow of water is stoppe thereby not allowing any fluid to drain out of the valve’s entrance. Valve Symbols in PID – Ball Valve, Relief Valve and more.

In this article, you are going to learn about different types of valve symbols that used in PID. Many types of valves are used in process piping and each has a different symbol. This makes valve one of the tricky parts of reading PID. It is open when the ball’s hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle.


Ball valves are designed with a ball inside the valve. Otherwise (from at least a surface level), the two valves are identical, and operate in the same way. Internally, these valves have a ball with a hole in the middle, which is connected to a lever-type outer handle. Find Types of isolation valves , gate valve , and butterfly valve.


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