🔥 Fire Door Certified
CE MARKEDBS EN 1154CERTIFIRE CF127
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The dormakaba BTS 75 V is the UK's most popular variable-power floor spring, used in commercial, public, and high-specification residential buildings wherever a concealed door closing solution is required. The closer body installs entirely below floor level within a steel cassette, leaving the door face and frame completely free of visible hardware. Only a slim cover plate is visible at floor level once installed.
The BTS 75 V is suitable for single-action and double-action doors up to 1100mm wide. The variable power adjustment screw allows the closing force to be set on site to suit the specific door and usage conditions — a significant advantage over fixed-power floor springs that require separate units for each power size. CERTIFIRE approved (CF127) and third-party tested to BS EN 1154, making it suitable for fire-rated door assemblies.
Key Features
- Variable power adjustment — one unit covers a wide range of door sizes and weights
- Suitable for single-action and double-action doors
- Maximum door width: 1100mm
- CERTIFIRE approved CF127
- Tested to BS EN 1154 — suitable for fire-rated doors
- CE marked
- Concealed installation — no visible hardware on door face or frame
- Universal application — suits timber, aluminium, and glass doors
Variants
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Non Hold Open / Unit Box & Spindle — complete unit with frame box and spindle
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Non Hold Open / Unit & Box — unit and frame box only, spindle ordered separately
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Fixed Hold Open 90° / Unit Box & Spindle — holds door open at 90°, releases manually
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Fixed Hold Open 90° / Unit & Box — hold open unit and box, spindle ordered separately
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Free Swing Unit — no closing force, door swings freely — used with automatic door operators
Cover Plate Required — Sold Separately
The BTS 75 V requires a cover plate to finish the installation. Standard and oversized cover plates are available in a range of finishes. Standard Cover Plates / Oversized Cover Plates
Download the BTS 75 V Technical Data Sheet (PDF)
Same-day despatch on orders placed before 2pm. Free delivery on orders over £100.
