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.