Cozy home must be dry and safe. And those who once experienced all the charms of dealing with consequences of broken pipeline know that the quality of pipeline networks is beyond the notorious savings. Talking about the quality of pipe networks, it is worth recalling that the focus should be not placed only on pipes, but also on connecting valves.
Let us have a more detailed look at ball valves, the devices that are used almost everywhere today, in all the pipeline networks designed for the transport or distribution of liquid and gaseous media. Valves will close, open or redirect the flow of fluid. For many years valves have undergone many changes from the unpretentious valves to ball valves, which now occupy the leading position in the market of pipeline valves.
The scope of use
The scope of the ball valves use is truly extensive: these devices are successfully used in heating systems, water and gas stations, both on domestic and on the larger scale production level. Another aspect of use is installation of ball valves near the base of risers (e.g., fire or drinking water cranes and other systems), as well as at each branch from the main pipeline. Ball valves are ideal for use in pipelines transporting oil, corrosive environments, as well as industrial and drain water and food solutions. The commercial interest in these devices is confirmed by the recent trends – thus, Orseal, a prominent engineering equipment manufacturer, has recently launched a production lineup of ball valves and industrial ball valves, claiming the demand for the quality products in the UK is booming.
Most people are quite familiar with conventional ball valves by accident. Ball valve can be sure to meet almost every home, which has modern appliances: washing machines, dishwashers, etc. In this case, the ball valve is installed on the liner to the equipment and appliances; and in most cases, in a residential area installation of the ball valve on the water pipe is produced in association with a fine filter. Because of this, the water used for cooking and other household needs, it becomes much cleaner.
The principle of operation
Ball valves are designed for complete shut-off of the working environment and are not used for its adjustment. If you want to ball valve has served you for many years, it is necessary to use it exactly as it is designed to, in accordance with the rules laid down in the instructions.
The principle of operation of the ball valve relies on overlapping the medium flow by locking element. The locking element is a ball valve with a through ball cylindrical bore. By turning the locking element on its axis – perpendicular relative to the stationary housing of the ball valve – there is an opening, or blocking the flow of fluid. Regarding the form of the holes, it may be not only circular, but also trapezoidal, rectangular or oval. The size of the opening of the locking mechanism is also different depending on the scope of application of the device and the parameters of the pipeline network.
Depending on the size and destination valving locking member of the ball valve can be sealed in two main ways:
- floating ball valves (small ball valves)
- ball on supports (for ball valves with a large diameter)
In some cases, ball valves are used with additional sealing rings. Opening and closing of the ball valve is made by turning the handle by 90°.