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DORMA BTS 75 V Floor Spring

The DORMA BTS 75 V is a highly adaptable floor spring suitable for all standard single and double action doors with widths up to 1100mm and 120kg door weight. This floor spring is enhanced by its adjustable closing force of EN 1-4 individually regulated by means of an adjustment bolt.

Key Features
  • For single and double action doors
  • Adjustible spring strength
  • Universal application range
  • Concealed installation
  • Door weight 120kg
Scope of Use

The DORMA BTS 75 V door 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.

Statement of Building Code Compliance

Certified to ISO 9001

In-Service History

Bideford College - Devon, UK

At the £55 million new-build Bideford College in Devon, careful selection of sustainable materials was of the utmost importance to help the building achieve a BREEAM rating of ‘Excellent’. When choosing solutions to control the numerous doors throughout the building, product lifecycle and longevity were important to help create a sustainable and low maintenance building. To achieve this, a comprehensive range of products from DORMA was specified, including Dorma BTS 75 V Floor Springs.

Technical brochure
ISO Certification
Sealing Compound Instructions
Accessories Brochure
Additional Information
CAD/PDF Details
Bridge Type Fixing
BTS 75 V Diagram
Floor Spring (DWG)
Floor Spring (DXF)
Floor Spring (PDF)
Snap Fastening
Installation Details
8066 Top Pivot Installation Instructions
Floor Spring Installation
Top Pivot Installation Instructions


dormakaba is a global supplier of door hardware, automatic doors, glass fittings, and movable walls.

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