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DMABTS75
Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only
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Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only
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Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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£219.84
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£183.20
Excl. VAT
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Description
Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only
When you require a reliable solution for heavy-duty commercial entranceways, the Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only stands out as an industry leader. This floor spring offers unparalleled adaptability for standard single and double-action doors. By providing a discreet yet powerful closing solution, this mechanism ensures your doors maintain smooth operation day after day.
Engineered for versatility, this model handles door widths up to 1100 mm with ease. The adjustable closing force provides the flexibility needed to match your specific environmental requirements. Whether you are managing a busy office building or a retail storefront, this hardware delivers the consistent performance that professional installers and facilities managers expect.
Mechanical Physics and Operational Forces
The mechanical integrity of this floor spring is rooted in its highly efficient internal spring system. When a user opens a door, they store potential energy within the internal coil mechanism. Upon release, the device converts this potential energy into controlled torque. This torque is precisely managed through internal hydraulic valves to ensure the door returns to its closed position without slamming.
The structural housing is built to withstand significant stress over time. The design prevents common issues such as component flex or metal fatigue. By distributing the door weight effectively through the spindle and cement box, this device maintains structural alignment even when installed in high-traffic zones. The precision-engineered valves allow for minute adjustments to speed, ensuring that the kinetic energy is dissipated safely during the final latching phase.
Operational Workflow for Professionals
Operating a door equipped with this mechanism is an intuitive process for any building user. The sequence begins with the manual application of pressure to the door leaf. As the door swings open, the internal mechanism provides a smooth, fluid resistance that feels balanced rather than heavy. This is crucial for user comfort in public spaces.
Once the pressure is released, the mechanism takes over. The closing cycle is divided into two distinct phases. First, the main closing phase draws the door toward the frame at a consistent, regulated speed. Second, the final latching phase engages to ensure the door clicks securely into the lock or strike plate. This ensures that safety and security are never compromised by a door that fails to shut completely.
Not sure if this Floor spring Door Closer is right for your requirements? If you are not sure if this floor spring door closer is right for your requirements please contact our friendly team today to discuss your requirements.
Ergonomic Health and Safety Compliance
Installing the Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only significantly improves the ergonomic profile of any doorway. High-quality door closers reduce the physical strain placed on users by eliminating the need for manual closing effort. In buildings with high footfall, this contributes to a more accessible and inclusive environment for all individuals.
Safety compliance is a critical aspect of commercial architecture. This hardware is tested to EN 1154 standards and holds Certifire approval, which is essential for fire door assemblies. By ensuring that doors close automatically and latch reliably, this unit plays a vital role in preventing the spread of fire and smoke. It acts as a passive safety system that works silently in the background of your daily operations.
Commercial ROI and Long Term Value
Investing in premium door hardware is a strategic business decision that pays dividends over time. Cheaper alternatives often suffer from valve leakage or spring failure within a few years. This robust unit is designed to minimize the need for frequent maintenance or replacement cycles. By reducing the downtime associated with door repairs, you protect your operational continuity and ensure that your facilities remain professional and welcoming.
Beyond the cost of hardware, consider the impact on asset protection. A door that swings uncontrollably can cause damage to walls, glass panels, or nearby fixtures. By controlling the door motion, you protect your premises from structural damage and reduce the risk of accidents. This makes the purchase an essential component of your facility asset management plan.
Core Features and Design Benefits
- The adjustable closing force covers EN 1-4, allowing you to fine-tune the pressure for different door sizes and weights up to 120kg.
- Two independent adjustment valves allow you to calibrate both the closing speed and the latching speed to suit specific site conditions.
- The built-in backcheck function provides essential protection by preventing the door from making contact with the frame or walls during forceful openings.
- The mechanism is designed for universal application, making it suitable for both left-hand and right-hand door configurations.
- A comprehensive program of accessories is available, ensuring compatibility with a wide variety of floor coverings and modern door constructions.
- Every unit includes a high-quality cement box to ensure stable installation within the subfloor.
Technical Specifications
The following table provides the precise dimensions and performance ratings for this item. Please verify these measurements against your existing floor cavity requirements before installation.
| Feature | Specification |
|---|---|
| Maximum Door Weight | 120kg |
| Maximum Door Width | 1100mm |
| Closing Force Range | EN 1-4 |
| Length | 285mm |
| Depth | 82mm |
| Height | 50mm |
| Fire Rating | Certifire approved (Certificate No. 127) |
| Standards | Tested to EN 1154 and CE marked |
Versatility in Application
The Dorma BTS 75V Non Hold Open Floor Spring Mechanism Only adapts to the unique needs of your building layout. Whether your facility utilizes narrow-stile aluminium doors or heavy timber entrance doors, this device performs with consistent reliability. It is an excellent choice for locations requiring a non-hold open feature, particularly in fire-rated zones where doors must remain closed to maintain safety barriers.
Our team at Doorfit recommends this unit for environments where user convenience is just as important as long-term durability. By choosing a product that is certified to ISO 9001 standards, you are investing in a product that has undergone rigorous quality control. This dedication to excellence ensures that you receive a mechanism that functions flawlessly upon installation and remains dependable throughout its entire service life.
If you have specific concerns regarding installation on unusual floor structures or door types, our support team is available to offer technical guidance. We understand that every project presents different challenges, and we are committed to providing the hardware that solves your unique entranceway issues. today to ensure your project receives the quality support it deserves.
Specification
| Manufacturer | Dorma |
|---|---|
| Guarantee | 2 Year |
| Type | Floor Spring |
| Power sizes | 1 to 4 |
| Finish | N/A |
| CE Certified | Yes |
| Certifire Approved | Yes |
| Application | Universal |
| Arm Assembly | N/A |
| Closing Speed | Variable |
| Latching Action | Yes |
| Stand Open | No |
| Back Check | Yes |
| Delayed Action | Yes |
