Universally usable, no electricity needed and maintenance-free!
Wherever automatically controlled ventilation is required, this powerful autovent with stainless steel return springs reliably opens and closes the most various roof vents and side louvers, ventilations hoods, air shutters and louvers.
It controls the climate both in greenhouses and conservatories as well as in agricultural buildings and in industrial and residential areas. Without current and maintenance-free!
Cylinder length (from ball hinge to ball hinge) 45.6 cm.
When being heated up, the expansion fluid pushes the piston rod up to 9 cm out of the cylinder.  Pressure or lifting capacity: 20 kg max. The achievable opening width depends on the mounting point, the installation angle, and all possible transmission ratios.
The strong stainless steel return spring ensures the safe closing of the ventilation objects when the expansion fluid cools down.
The installation is possible with the most various opening objects.