The Elebar compensating valves are a very important device for the cold-rooms safety, to keep the internal and external pressures balanced, especially during the cooling-off period and the door opening and closing. The main differences between the new Evo-Maxielebar and the other compensating valves in the market, particularly the high air/flow valve family, are the vertical installation option (“V” version) where you can install the valve on the ceiling of the cold-room and, thanks to the main body valve symmetry, the possibility to wiring it either inside or outside the cold-room. Furthermore, the special gasket applied on the two inner flaps that allow the air air/flow passage, guarantees a better seal and, with the application of the heating cable, an excellent operation at very low temperatures. All the models are available in two version: • TN (Positive temperature) from +10°C to +1°C • BT (Negative temperature) from 0°C to -30°C