Dorma TS73EMF Silver Electro Magnetic Door Closer
In stock
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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Description
Reliable Hold-Open Control and Fire Separation with the Dorma TS73EMF
Managing busy corridors in commercial premises, hospitals, and educational facilities often creates a difficult balancing act between day-to-day accessibility and vital fire safety requirements. Standard self-closing fire doors present physical barriers that can impede the free flow of people, slow down heavy trolley movement, and cause unnecessary frustration for building occupants. When staff resort to wedging doors open, they compromise compartmentalisation and place the whole building at risk.
The Dorma TS73EMF Silver Electro Magnetic Door Closer solves this operational challenge directly by pairing an efficient hydraulic closing mechanism with an advanced electro-magnetic hold-open function. When wired into a central fire alarm infrastructure, the closer holds internal doors securely open during normal daily working hours. This allows continuous pedestrian traffic to move without obstruction while ensuring full compliance with fire compartmentation regulations.
Manufactured under rigid quality controls and certified to ISO 9001 standards, this closer delivers a reliable response when emergency conditions arise. Any break in electrical continuity, whether triggered by an automated smoke detector, a manual alarm push button, or a mains power cut, releases the magnetic field instantly. The internal hydraulic spring mechanism immediately takes over, drawing the door leaf firmly into its frame to halt smoke migration and resist heat spread.
Stage-by-Stage Operational Pipeline
Stage 1: Day-to-Day Electro-Magnetic Hold Open
Under steady operating conditions, internal magnets receive low-voltage power to hold the leaf steady at your selected position. Building users enjoy effortless transit across heavy-traffic routes without contacting the door handle, keeping circulation areas comfortable, open, and fully accessible.
Stage 2: Instant Alarm Trigger and Circuit Interruption
As soon as the fire alarm detects smoke or heat, the dedicated relay drops power directly to the electro-magnet. The holding force de-energises instantly, releasing the door leaf immediately without mechanical lag or manual intervention to protect internal escape corridors.
Stage 3: Smooth Hydraulic Sweep and Latching
Once released, the dependable Dorma TS 73 EMF hydraulic assembly drives the door smoothly through its complete closing cycle. Regulated valve channels control the movement carefully, ensuring the leaf latches firmly into place despite changing air pressure or draughts.
Stage 4: Power Failure and Manual Override Safety
In the event of total mains failure, the unit acts strictly in fail-safe mode by returning the door to a secure, closed seal. Occupants can also pull the leaf away from the magnetic hold manually at any point, providing intuitive physical control during routine use.
Key Functional Advantages for Modern Facilities
The Dorma TS73EMF Silver Electro Magnetic Door Closer represents an exceptionally robust solution for building managers who cannot afford to compromise on life safety. Its universal application capability allows it to sit neatly across a wide variety of project environments, from high-density school pathways to clinical hospital departments where hygiene and barrier-free access are paramount.
- Fail-Safe Fire Protection Disconnects immediately during alarm signals or power loss to preserve passive fire protection boundaries.
- Consistent Hold-Open Point Provides a firm, stable position that keeps wide thoroughfares clear during normal operational hours.
- Manual Release Functionality Allows building users to pull the door shut by hand whenever privacy or temperature control is needed.
- Controlled Hydraulic Movement Internal fluid dampening prevents violent slamming while guaranteeing secure engagement with the strike plate.
- Modern Silver Aesthetic Clean silver casing complements architectural ironmongery fittings across modern commercial interiors.
Detailed Specifications
| Specification | Rating or Standard | Practical Details |
|---|---|---|
| Product Brand | Dorma Hardware | Engineered for commercial accessibility and building control |
| Model Identification | TS 73 EMF | Electro-magnetic hold-open unit with hydraulic closer body |
| Finish | Silver Lacquered | Attractive metallic coat suited to contemporary commercial ironmongery |
| Quality Management | ISO 9001 Certified | Manufactured to audited international quality control systems |
| Hold-Open Mechanism | Electro-Magnetic | Powered hold open with instant de-energisation upon signal interruption |
| Closing Action | Hydraulic Rack and Pinion | Smooth controlled movement with adjustable latching performance |
| Application Suitability | Universal Application | Designed for standard fire and escape doors along internal routes |
| Emergency Operation | Fail-Safe Release | Releases on fire alarm signal, power cut, or direct manual pull |
Installation and Practical Application Guidance
Correct installation of the Dorma TS73EMF is essential to achieve both structural reliability and life safety compliance. Because this unit functions directly with the building fire detection network, wiring should be carried out in coordination with experienced electrical contractors and alarm technicians. The electro-magnet requires an unbroken, regulated power feed that is linked into the main fire panel through an appropriate interface module.
During installation, the closer body must be securely mounted to the door leaf or frame face using the factory template. Taking time to ensure the arm geometry is accurately aligned avoids undue wear on moving parts and maintains stable hold-open positions. Once fitted, the valve screws can be fine-tuned to establish the perfect closing speed and final latching action, preventing the door from banging against the frame stops while guaranteeing it latches fully against draughts.
Routine inspection schedules should include verifying that the door releases freely whenever the alarm system is tested weekly. Clean the body surfaces and arm connections with a soft cloth to keep the mechanism free from excessive dust and debris. If manual pull forces feel too stiff or the door fails to latch cleanly, the closer hydraulics and arm alignments can be quickly adjusted to restore optimal movement.
Need Advice on Fire Door Hardware?
Our experienced architectural ironmongery specialists at Doorfit are ready to assist you with technical wiring specifications, fire regulations, and project schedules.
Contact Our TeamSpecification
| Manufacturer | Dorma |
|---|---|
| Finish | Silver |
| Guarantee | 2 Year |
| Type | Overhead |
| Power sizes | 4 |
| Finish | Silver |
| CE Certified | Yes |
| Certifire Approved | Yes |
| Application | Fig. 1 |
| Arm Assembly | Projecting Arm |
| Closing Speed | Variable |
| Latching Action | Yes |
| Stand Open | Yes |
| Back Check | No |
| Delayed Action | No |

