Sectional doors FIDELITY hydraulically powered, with special sealings. Sealing guarantee given by the FIDELITY system.
Conform to the Product Norm EN 13241. Marked CE
The GAS-TIGHT sectional overhead door is lifted by the hydraulic Fidelity mechanism that eliminates the balancing springs, and consequently all periodical maintenance changes in a simple inspection.
The Fidelity system grants that the whole weight of the door leaf is in contact by the gravity force, without any balancing.
This natural force allows a contemporary compression of the whole door when closing, against the perimeter sealings and the bottom astragal, assuring in this way the Gas Tightness.
The GAS-TIGHT performances are those of granting a limited passage of air through the door, at closed door.