Welded ball valve

Ball valve - is a shut-off valve designed to stop the flow of a medium. The shut-off element of the valve has the shape of a ball, with a through hole for the flow of the medium along its axis. To shut off a ball valve, it is sufficient to turn the handle, which is rigidly connected to the shutter, by 90°.

Working media

Ball valves can be used to shut off the flow of water, steam, gas, compressed air, petroleum products, acids, alkalis, dense and abrasive media with a wide range of temperatures and working pressures. All welded ball valves that you will find in our catalog can be used for water, the possibility of using for other working media should be clarified with suppliers.

Application area

Welded ball valves are used in the most responsible and hard-to-reach places, for example, on pipelines surrounded by water, non-channelled pipes laid underground, and also when leakage through a threaded or flanged connection is not permissible.

Welded ball valves are often used in block, boiler, thermal and pumping stations, to reduce the weight and cost of the product, as well as in the energy and industrial sectors, where the reliability of the system comes to the fore.

Advantages

Low price
Small size
Simple and reliable design
Possibility of quick opening
Do not require maintenance
Possibility of full passage performance
Absence of stagnation zones in the flow part
Low hydraulic resistance
Ensure tight flow shut-off
Allow medium flow in any direction
Possibility of installation in non-passable channels and under water filling

Disadvantages

Not suitable for repair.
Welding work is required for replacement.
High torque is required for closing, which leads to the need to use long levers or reduction mechanisms for manual control, and expensive electric drives for automatic control.
Long levers are inconvenient for closing the valve in confined spaces, such as wells and thermal chambers.
Sharp opening can lead to hydraulic shock, which is unacceptable for some systems.

What can be replaced with