This inlet consists of three single inlets built on top
of each other. With three middle hinged inner valves the air
will be divided and also flows underneath the valves when
they are opened over 35%. The inlet is controlled by means
of three stainless steel side arms connected by a stainless
steel rod. This inlet is executed with curved inner valves so
when it is opened for maximum ventilation air is also guided
downwards to the animals.
