With the ValkTwinRail ventilation mechanism, two ventilation window sections are operated independently. The system stands out for its functionality and ease of installation thanks to a unique combination of structure and components.
The window push rods (ValkPushRods) are bent in a calculated manner to allow them to move at the same time without interfering with each other. They are joined together in a steel grip by the ValkStabiMax hinge element, which prevents twisted window push rods and misaligned ventilation windows. This hinge is mounted on the pull/push tube using a widener or extension to guarantee the ValkPushRods can move freely. The completely torsion-free tube clamp that is used for that has a wide shape that allows it to flawlessly absorbs the tolerances of the greenhouse.
Unique ValkTwinRail components: