The gas industry, the chemical industry, oil and oil product refineries, gas pipelines and domestic water pipelines are just some of the industries in which the most commonly used ball-and-socket ball valve. This choice is not accidental, the features of this particular type of cranes allowed him to take a leading position in relation to other models.
Coupling ball valve - why it?
Such a valve is the best choice for those piping systems that have a small diameter. The raw material from which the ball brass coupling valve is made, is, as its name implies, brass. It is she who is the safest material used in pipeline systems. The nut, which is located under the handle, adjusts the packing seal. In the crane itself there are seals made of Teflon, which are movable elements with respect to the crane rod. If a leak occurs, you just need to tighten it (this will press the seal ring, and the normal operation of the valve will be restored). Due to the features of its design, the ball-joint coupling valve can easily withstand 2 tens of thousands of openings / closures. Also a distinctive feature of this model is its explosion safety. This reputation was obtained due to the fact that the stock is in the body. Because of this, even if the nut is completely unscrewed or the working pressure is much higher than normal, the stem will not be able to fly out.
Shutters
According to the shape of the shutter, ball-type coupling valves are divided into the following types: butterfly handle and long handle.
If the diameter of the crane is small, then a butterfly shutter is usually used for it. Opening the crane in this case will not require significant efforts, and the design itself will look neat and compact. They are also good for those cranes that are close to each other.
A long handle is suitable for a crane of any diameter, however, with their close proximity, such a handle can interfere.
Among the main advantages possessed by a ball coupling valve :
- It does not require maintenance or repair.
- The crane does not need lubrication.
- Installation in any its position is possible.
- Its handle is the safest in terms of injury. To completely close or open the tap, turn it 90 °.
- Brass spraying has anti-corrosion properties.
If we consider its technical parameters, such a valve can be used in a pipeline supplying hot water, non-aggressive liquid composition, cold water, steam (provided that its temperature does not exceed 150 degrees Celsius). The valve stem and ball are made of brass, as is the body. The design works flawlessly at a pressure of 1.6 MPa.
Advantages possessed by a ball coupling valve are obvious. The simplicity of its design, ease of operation and safety of use explain the high popularity of this product (both in production and in residential buildings).