This valve makes it possible to balance pressure differences between internal and external pressures of a cold room.
This is done through venting through the cold room wall.
This valve is heated, mechanically operated with two air tight mobile flaps with a return spring, allowing air flow in either direction.
The intake and exhaust are separated by partition.
This is suitable for a cold room with a capacity smaller than 75m3
The heating element is mounted on the perimeter and is completed encapsulated in the valve. Its continous power consumption is 15 watt ( 8 watt for a wall mounted valve) The electrical connection is made outside of the cooling chamber where a cable sticks out of a gland.
Correct electrical fused connection by qualified personal is suggested.