The ball valve is used as a shut-off valve in heat supply systems, water supply systems, in steam, fuel and pneumatic systems with compressed air and neutral gases. Installation of valves of this series is possible in systems transporting liquid and gaseous media (water, oil, oils, steam, air, alcohols, glycol, etc.), non-aggressive to the materials of the valve. The use of ball valves as control valves is not allowed.
The rotary pneumatic actuator is designed to automate the process of controlling industrial valves.
The limit switch unit is an electrical device designed to open and close the working circuit and to visualize the positions of the shut-off element of the pipeline valves. In the terminal box, as a rule, there are two mechanical switches rated for voltage up to 250 V, which monitor the position of the actuator rod and signal in extreme positions. They are mounted on top of the actuator surface.