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
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
RA2000 valve bodies are available in a wide array of connection types and sizes for the required application.
Keep water temperatures safe in point of source applications with ESBE thermostatic mixing valves, used in both mixing and diverting applications.
Motorized rotary actuators specific to ESBE rotary valves that operate on a variety of input signals.
ESBE Rotary valves are designed for regulation of flow temperatures in hydronic heating or chilled systems.
Find information on hydronic heating troubleshooting, including our top frequently asked questions, our video library, links to hydronic heating literature, a link to our newsletter, and more.
Go to Technical Support page