Gas ball valve: design features

The gas pipeline is necessarily equipped with stop valves. It is necessary for the possibility of isolation of emergency areas or areas in need of repair. The best thing today is to cope with this task ball valves for gas, which will be discussed in this article.

Technical description

The first thing to consider is the device of a ball valve.

Structure

Principle of operation

The most important and main part of the gas valve in question is a shut-off ball, which has a through hole equal to the diameter of the connecting pipe and is connected to the switching handle of the rod.

The instruction of the functioning of such a mechanism is elementary:

• A man with a slight movement of his hand turns the handle 90 degrees.
• The stock transmits this motion to the ball.
• The wall changes to a hole, creating an easy access.

Tip: it is not recommended to install the handle in the half-open position, as this significantly increases the wear of the structure.

Merits

Ball valves for gas pipeline has a whole set of positive aspects:

• Relatively low price. Achieved thanks to the simplicity of the design, eliminating the use of expensive components.
• Low weight. It does not make the pipeline heavier, which allows it to be limited to standard pipe anchorages.

• High reliability. In the manufacture of materials used only high strength.

Tip: It is recommended to choose a crane material depending on the environment in which you plan to use it. So, for example, brass models will perfectly cope with corrosion processes, and steel ones will withstand more powerful mechanical loads.

• High speed and ease of use by hand. It is enough to perform a short turn of the handle to change the position from “open” to “closed” and vice versa.
• No need for maintenance. Such valves and fittings can be safely installed in hard-to-reach places.
• High tightness of flow overlap. The closed position of the crane ensures complete sealing of the pipeline.
• Possibility of installation even under water. At the same time, the penetration of fluid into the system is completely excluded.
• Small size. They allow the product not to stand out against the background of the pipe itself and simplify its installation, which is easily performed by 1-2 people.

• Attractive appearance. The only eye-catching detail is the handle, which can be made in the form of a butterfly or an elongated lever. In any case, the technical unit looks quite aesthetic.
• Easy installation. Perhaps both threaded and welded.

Technical details

Let us analyze the parameters of the classical model for installation on the home gas pipeline:

Possible variations

It should also be noted that gas ball valves can differ among themselves in some particularities, namely:

• When possible repair. There are collapsible and all-welded samples.

Tip: if you are installing the crane in an inaccessible place, it is better to opt for an all-welded product with a welded connecting pipe. So you will achieve maximum tightness, which is necessary with the condition of difficult maintenance in the future.

• Down the aisle. Ball valves can be full bore and non-full bore.

In addition, there are models that have an electric drive that allows you to automate the process of closing and opening it.

Conclusion

The gas pipeline must be equipped with reliable cranes in case it is necessary to isolate its individual sections. In particular, this concerns the points of connection to gas appliances, as well as emergency hazardous zones. The best option is a ball valve due to its high reliability, ease of operation and many other advantages (see also the article Why install a Mayevsky crane in heating systems).

The video in this article will provide you with additional information directly related to the materials presented. Choose for the arrangement of the gas pipeline only the best components.