or closed is unambiguously answered by
the hub display which is well visible all
round and easily read from all angles.
This allows a constant check of the
functioning of the Alpha-Actuator which
is a further advantage of this unit.
not always present. Here, the challenge
is to guarantee perfect long term
functionality under unfavourable conditions.
We have succeeded in protecting voltage
conducting parts inside the housing against
penetrating water (from a potential valve
leak) with the Alpha-Actuator 4. This allows
the actuator to be installed in even the
most precarious positions without any
restrictions.
(patented)
absolute innovation. A newly developed,
patented sealing process protects the
Alpha-Actuator against leaky valves and
sprayed water from outside. This increases
operational safety and the service life.
Incidentally, penetrating water is the most
frequent cause of faults and failures in the
case of actuating drives.
KV*), which has been improved again, is
a further advantage. Operating safety is
maintained, even in the case of power
surges.