Floor spring system for single- and double-leaf doors
As a universal floor spring, the BTS 80 has been designed to meet the requirements of doors of all types. With its many individually combinable extras, it is able to satisfy almost every application requirement. Once installed below floor level, the mechanism is almost completely concealed from view.
Certified manufacture to ISO 9001.
Whether standard, narrow or wide, whether LH, RH, or single or double action – the DORMA BTS 80 floor spring is designed for all types of doors. A comprehensive program of accessories ensures that it can be used successfully with a wide variety of door constructions and floor coverings.
Three model variants
The BTS 80 system with its three model variants BTS 80 F (for fire and smoke check doors), BTS 80 EMB (with electrohydraulic hold-open), and BTS 80 FLB (with free-swing function), plus the wide range of accessories available, offers effective adaptability to various door designs and -functions.
Benefits for the installer/fabricator
Suitable for installation with LH or RH single- and double-action doors
Interchangeable spindles enable easy adaptation to structural conditions – even when retrofitted
Benefits for the architect/specifier
Concealed installation for maximum visual elegance
All essential functions provided
Proven, robust design capable of withstanding leaf weights of up to 300 kg
Benefits for the user
Constant, temperature independent closing cycle.
Highly efficient mechanism gives maximum user convenience.