ESBE VTC511 thermic valve

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The ESBE VTC511 thermic valve is a thermostatic by-pass valve which regulates the temperature of either the supply out or the return of water in a hydronic heating system. In a conventional application, the VTC valve safeguards noncondensing boilers against corrosion from condensation that would result if a minimum flue gas temperature is not maintained. With the VTC the boiler is able to recover and keep up with the drop in water temperature. The VTC valve can also be used on a solid fuel boiler or a solar application where a minimum/maximum water temperature is trying to be maintained.

Order one valve body and one thermostat* to assemble a complete valve.

*ordered separately

Features and benefits

Thermostatically maintains a high and steady return temperature increasing the life and efficiency of the heat source

Protection from thermal shock within noncondensing boilers

Self contained thermostatic element with no adjustment required

Interchangeable thermostat elements, to meet temperature requirements

Low leakage rate through the ports of the valve


VTC valves
VTC511 thermostats


Type Name Language Valid for Updated Download File type
Installation guide ESBE Thermic Valve TV Installation Instructions English United States 12 Feb, 2009 139.4 KB .pdf
Data sheet ESBE VTC 511 3-Way Thermic Valve Datasheet English Multiple 02 Mar, 2022 335.8 KB .pdf
Installation guide ESBE VTC Thermic Valve Instructions English Multiple 08 Mar, 2010 5.7 MB .pdf
Catalog Hydronic Specialties Controls Catalog and Application Guide English Multiple 25 Mar, 2022 2.4 MB .pdf

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