Apply Discount Code
DMA-GRL050-NHO-MECH
Groom GRL050 Non Hold Open Transom Door Closer
Main image
Click to view image in fullscreen
![]()
Groom GRL050 Non Hold Open Transom 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. |
View Delivery Information
£78.72
Incl. VAT
£65.60
Excl. VAT
Incl. VAT
Excl. VAT
Incl. VAT
Excl. VAT
Price is for/per each
-
+
See our full range:
Description
Groom GRL050 Non Hold Open Transom Door Closer
Ensuring your commercial entrance functions with precision and reliability is paramount for any business environment. The Groom GRL050 Non Hold Open Transom Door Closer stands as a premier solution for those seeking a robust mechanism that manages the movement of aluminium door sets with effortless grace. Designed to support a variety of configurations, this mechanism is engineered for environments where standard closing reliability is the baseline for success.
Whether you are outfitting a high traffic retail space or a private professional office, the build quality of this hardware ensures consistent performance. By choosing a high grade cast iron mechanism, you are investing in a component that resists the daily stresses of commercial usage. This model eliminates the complexities of hold open systems, providing a pure, non hold open solution that is perfect for entrances requiring immediate security after every cycle.
Mechanical Engineering and Force Management
At the heart of this hardware lies a sophisticated understanding of mechanical physics and torque control. The internal architecture uses a series of high tension springs and hydraulic fluid dynamics to manage the kinetic energy generated when a heavy aluminium door is pushed open. By precisely controlling the sweep and latching speeds, this equipment prevents slamming and ensures the door returns to its frame in a controlled, smooth motion.
The structural integrity of the cast iron body is vital for preventing component flex under sustained load. When a door is opened to its maximum limit, the strain placed on the transom closer is significant. The Groom GRL050 Non Hold Open Transom Door Closer distributes these forces evenly across the bracketry, preventing the premature wear that often plagues lighter, inferior alternatives.
Operational Workflow and User Interaction
The interaction between a user and this hardware is designed to be seamless. The physical sequence begins with the opening stroke, where the transom unit absorbs the force and accumulates potential energy within its internal spring system. As the user releases the door, the hydraulic valves take command to manage the descent.
- The sweep speed control manages the initial movement from 130 degrees down to 15 degrees, ensuring a dignified closure.
- The latching speed phase takes over from 15 degrees to 0 degrees to overcome any latch resistance or air pressure within the doorway.
- This two valve system allows site managers to fine tune the speed based on local wind conditions or building pressure.
- The non hold open design forces the door to automatically return to the closed position, which is essential for fire safety and environmental control.
Ergonomics, Safety, and Regulatory Compliance
Safety is not just about locking a door, it is about how that door behaves when someone is walking through it. Using a properly configured transom closer reduces the physical effort required by the occupant to transition between spaces. This reduces user fatigue and prevents injuries caused by heavy doors swinging uncontrollably in drafty conditions.
Compliance with EN 1154 standards serves as the gold benchmark for this device. This certification ensures that the unit meets rigorous testing criteria for closing force, efficiency, and durability. By adhering to these standards, facility managers ensure that their premises remain legally compliant while simultaneously protecting users from the hazards of uncontrolled door movement.
Commercial ROI and Long Term Value
Investing in professional grade hardware is a strategic decision that pays dividends over time. Lower quality closers often require frequent adjustment or replacement within the first few years of installation. By selecting this durable model, you reduce the administrative and labour costs associated with ongoing maintenance.
If you are not sure if this transom door closer is right for your requirements please contact our friendly team today to discuss your requirements.
The total cost of ownership is significantly lower when factoring in the longevity of the cast iron mechanism. This equipment protects your building assets, such as the door frame and glass, from impact damage that occurs when cheaper mechanisms fail to provide adequate damping. The long term reliability of this device ensures that your business entrance remains functional, secure, and professional year after year.
Technical Specifications
This model is specifically engineered to fit within standard transom profiles, providing a near invisible installation that preserves the aesthetic of your glass or aluminium doors.
| Feature | Specification |
|---|---|
| Product Name | Groom GRL050 Non Hold Open |
| Standard Compliance | EN 1154 |
| Closing Force | EN3 |
| Maximum Door Width | 1100mm |
| Maximum Door Weight | 110kg |
| Opening Angle | Up to 130 degrees |
| Body Material | High grade cast iron |
| Spindle Height | 12mm |
| Transom Width | 92mm |
| Adjustment | Dual valve for sweep and latch |
Versatile Installation for Modern Entryways
Flexibility is a defining characteristic of this hardware, allowing it to adapt to various architectural requirements. Whether you require a side load configuration or an end load installation, the provided 70mm bracket simplifies the mounting process. The unit supports both single and double action doors, which makes it an ideal choice for high traffic environments like hospitals, schools, and offices where door orientation might vary.
The ability to adjust both the sweep speed and the latching speed independently gives you total control over the personality of the door. You might want a fast closing speed in a quiet corridor, or a slower, more deliberate motion for a main entrance. This Groom GRL050 Non Hold Open Transom Door Closer provides that granular level of control to ensure your facility operates exactly as you intend.
When you choose this component, you are choosing a bridge between industrial strength and daily convenience. The compact design ensures that the hardware does not detract from the visual appeal of modern glass doors, while the internal pressure relief valves provide an extra layer of protection against force abuse. Make the smart choice for your building entrance today by selecting hardware that is proven to stand the test of time.
Specification
| Guarantee | 2 Year |
|---|---|
| Type | Transom |
| Power sizes | 3 |
| Finish | N/A |
| CE Certified | No |
| Certifire Approved | No |
| Application | Universal |
| Arm Assembly | N/A |
| Closing Speed | Variable |
| Latching Action | Yes |
| Stand Open | No |
| Back Check | Yes |
| Delayed Action | No |