VTC thermostatic valves are 3-way thermostatic valves. Installed close to the boiler stove or log gasifiyer the load valve protects the boiler from low return temperatures, improves efficiency and accumulator loading. When the water in the stove boiler is still cool the valve directs the water straight back to the stove. This means that the volume of water which the stove initially has to heat up is small and so it heats it up quickly.
When the water hits 60ºC the valve starts to open and lets a little of the water from the central heating return pipe into the boiler circuit, which of course lets a little hot water out into the central heating flow pipe. The valve gradually opens until by the time the water has reached 70ºC it is fully open and all the water is pumped into the central heating circuit. So in this way using a VTC series thermostatic valve gets the stove boiler up to temperature fast and keeps it there. This prolongs the life of the boiler, makes the stove work more efficiently, and reduces unnecessary mixing in accumulator tanks - because on hot water is allowed out into the main heating loop.
The Esbe VTC512 load valve is suited for use with boiler stoves that give up to 50kW to water. The VTC512 has 32MM (1 1/2”) internal threaded fittings, starts opening at 60ºC, and is fully open at 70ºC. We can supply the VTC512 with isolation valves with 28mm compression fittings as in the picture above for £108, or the valve on its own as required for £91.25.
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The ESBE VTC512 stove load valve includes free delivery within the orange area on the map. Further delivery details.
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