Self-acting temperature controllers

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AVTB and AVTB-RA temperature controllers

AVTB direct acting and AVTB-RA reverse acting proportional controllers are used to regulate the temperature of water.
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RAVK self acting thermostatic operator

RAVK is a self-acting thermostatic operator used to control temperatures in small hot-water cylinders (i.e. storage tanks) or heat exchangers in hydronic hot water systems. RAVK closes on rising sensor temperature.