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SEC-DLG0850H-ESPAG
Defender High Security Window Lock Model DLG0850H
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To Suit Rebate Size 780mm to 909mm c/w 3x 9mm Cams
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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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£14.40
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£12.00
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Description
Defender High Security Window Lock Model DLG0850H
Protecting a residential or commercial property requires hardware that does not compromise on strength or reliability. The Defender High Security Window Lock Model DLG0850H represents a significant advancement in window security technology. By integrating high performance engineering with user friendly installation features, this unit provides a robust barrier against unauthorised entry while remaining a favourite for professional window fabricators and installers.
This espagnolette locking system has been developed to exceed stringent industry standards. It offers peace of mind through its certification to PAS24 and BS7950 requirements. When selecting security hardware, durability and compliance are non-negotiable factors that determine the long-term safety of your building envelope.
Unrivalled Security and Compliance Standards
Modern building regulations demand hardware that can withstand physical attack and forced entry attempts. The design philosophy behind this equipment prioritises structural integrity under stress. The locking mechanism is fully Secured by Design approved, ensuring it meets the high expectations set by police preferred specifications across the United Kingdom.
When an intruder attempts to force a window, the pressure is distributed across the entire frame. This locking system is engineered to handle these forces effectively. By maintaining consistent tension along the locking bar, it prevents the frame from flexing or bowing under load. The result is a secure seal that remains airtight and impenetrable even when subjected to mechanical leverage attempts.
Investing in certified security hardware is not just a regulatory requirement. It serves as a deterrent against criminal activity, protecting your property assets while lowering your long-term insurance premiums and maintenance liabilities.
Efficiency in Installation and Maintenance
One of the primary benefits of this locking system is the reduction in labour time. Traditional shootbolt systems often require complex adjustments that drain project budgets and extend lead times on site. This model eliminates many of those traditional bottlenecks through its innovative design.
- The installation process is significantly faster because the design requires fewer individual components compared to traditional shootbolt arrangements.
- Installers do not need to perform time-consuming bar adjustments or complex cropping tasks during the fitting phase.
- The system is engineered to function without extra routing or corner cleaning, which saves valuable time on the factory floor or during onsite installation.
- Maintenance is simplified through easy cam rotation that allows for precise adjustment of gasket compression.
- By reducing the total number of screws required for mounting, the system preserves the structural integrity of the window profile.
Operational Workflow and User Experience
To operate this window locking mechanism, the user simply turns the window handle, which engages the gearbox and drives the cams into the locking position. The movement is smooth and requires minimal force, demonstrating the quality of the internal gear mechanics. As the handle rotates, the cams travel into their keepers, effectively pulling the sash tightly against the frame gasket.
This compression is vital for both security and environmental performance. Proper compression prevents draughts and moisture ingress. Because the system is designed with ergonomic fluid movement in mind, the end user will notice the ease of operation, which minimises physical strain even when operating large or heavy window units. This attention to ergonomics ensures that the product is accessible for all users regardless of strength or mobility.
Mechanical Physics and Long Term Value
The internal gearbox of this Defender High Security Window Lock Model DLG0850H is the heart of the system. It is built to withstand thousands of operational cycles without failing. The materials used in construction offer excellent resistance to corrosion, which is a critical feature for hardware exposed to fluctuating temperatures and humidity levels near window seals.
From a commercial ROI perspective, this product excels by reducing the need for replacement cycles. When cheap hardware fails, it leads to expensive callbacks and unhappy clients. By choosing this proven gear technology, contractors protect their reputation and reduce the overhead associated with servicing faulty window locks. The cost efficiency is realised not just in the initial purchase, but in the lack of future remedial work required.
Health and Compliance Considerations
Safety within a building environment depends on the reliability of the apertures. This lock assists in maintaining a safe, stable, and warm environment by ensuring that windows close perfectly every time. This precision prevents the operational errors that often lead to hardware binding or jamming. By choosing compliant, high-quality hardware, you ensure that your projects pass building inspections with ease, avoiding the delays associated with non-compliant materials.
Technical Specifications
| Feature | Specification Details |
|---|---|
| Product Name | Defender DLG0850H |
| Security Standard | PAS24 and BS7950 compliant |
| Approval | Secured by Design |
| Gasket Compression | Adjustable via cam rotation |
| Installation Type | Surface mounted gearbox |
| Bar Design | Fixed length requiring no cropping |
| Maintenance | Low frequency lubrication required |
| Corrosion Resistance | High performance coating |
Strategic Benefits for Professional Fabricators
For those involved in the manufacturing of uPVC or timber windows, the Defender High Security Window Lock Model DLG0850H provides a competitive edge. By streamlining the assembly process, you can increase your daily output without increasing your labour force. The absence of bar cropping and complex routing means your machinery is under less strain, and your workshop space remains organised.
Furthermore, the compatibility of this lock with standard window profiles makes it an incredibly versatile choice for diverse projects. Whether you are working on a new build housing estate or a renovation project, the modularity and reliability of this product ensure that your window units provide industry-leading protection. Please note that all necessary keeps for this system are sold separately to allow for custom configuration based on your specific window profile requirements.
In summary, choosing this locking system is an investment in quality. You are providing your clients with an elite level of security that is backed by rigorous testing. You are also improving your own operational efficiency through a design that respects the time and skill of the installer. Contact our team at Doorfit if you have any questions regarding the compatibility of this hardware with your current window systems or if you require assistance with bulk orders for large-scale developments.
Specification
| Finish | Satin Stainless |
|---|---|
| Forend Finish | Stainless Steel |
| Window Material Suitability | UPVC |
| Window Operation | Hinged |
| Faceplate Width | 16mm |
| Lock Backset | 22mm |
| Roller Height | 9mm |
| Gear Type | Centre |