Ball valve with internal thread for closed hot and cold water systems in ventilation, air conditioning, and heating systems. The valve features an adapter for connecting a rotary actuator (90°). Using the actuator, the valve regulates one of two possible sequences - cooling or heating. The valve is equipped with an integrated pressure compensation function for pressure changes due to varying temperatures in the systems.

The valve is made of nickel-plated brass and is recommended to be installed in a vertical or horizontal position in the correct flow direction marked on the valve body.