Temperature controller AVTB is a direct acting automatic temperature controller which is used to control the temperature in hot water tanks, heat exchangers, oil heaters, and so on. The regulator valve closes when the water temperature rises.

The regulator consists of a regulating valve, a thermostatic element and a handle for setting the temperature. The thermostatic element, in turn, is made up of a bellows, a capillary tube 2 m or 2.3 m long and a temperature sensor.

Regulators AVTB supplied as a single unit - control valve and thermostatic element together.