DORMAKABA BTS75V Hold Open Floor Door Closer
The dormakaba (formerly Dorma) BTS75V is a highly adaptable, floor-concealed door closer designed for both single and double-action doors. This hold-open floor spring is suitable for doors with a maximum width of 1100mm and a leaf weight of up to 120kg.
With its adjustable spring strength (sizes EN 1 - 4), the closing force can be individually regulated to suit your specific door requirements. It features a built-in backcheck to prevent damage from doors being opened with excessive force, as well as an adjustable latch action for a smooth, controlled close.
Designed for low-maintenance, long-term performance, this unit is fire-tested for up to 1 hour on timber doors and up to 4 hours on metal doors. Please note that the cover plate is not included.
Technical Specifications
- Brand: dormakaba
- Model: BTS75V Hold Open
- Power Size: EN 1 to 4 (Adjustable)
- Max Door Width: 1100mm
- Max Door Weight: 120kg
- Fire Rating: Tested for up to 1 hour on timber doors and up to 4 hours on metal doors
- Handing: Reversible (suitable for single and double action doors)
- Backcheck: Yes
- Adjustable Latch Action: Yes
- Hold Open Function: Yes
- Dimensions: 285mm (L) x 82mm (W) x 50mm (H/D)
- Weight: 3.203kg
Key Features
- Adjustable Closing Force: Spring strength can be easily regulated between sizes 1 and 4 to suit individual door requirements.
- Concealed Installation: Fits discreetly into the floor, making it ideal for high-traffic commercial and architectural applications.
- Hold Open Facility: Keeps the door open when required, ideal for busy thoroughfares.
- Integrated Backcheck: Offers resistance when the door is opened with excessive force, protecting both the door and surrounding walls.
- Virtually Maintenance-Free: Designed for long-lasting reliability with minimal upkeep required.
- Reversible Action: Suitable for both single and double-action door configurations.
dormakaba