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NWH-DKESP-KEEP
Universal Night Vent Keep For Roller/Mushroom Espag
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Universal Night Vent Keep For Roller/Mushroom Espag
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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£6.43
Incl. VAT
£5.36
Excl. VAT
Incl. VAT
Excl. VAT
Incl. VAT
Excl. VAT
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Description
Window Hardware
Universal Night Vent Keep For Roller and Mushroom Espag
Finding the right component for window hardware replacements can often feel like a complex task because of the subtle variations found across different espagnolette systems. This universal night vent keep is engineered to simplify that process for tradespeople and homeowners alike by bridging the gap between two of the most common locking mechanisms currently in circulation. Whether you are dealing with a roller cam setup or a mushroom cam configuration, this single piece of hardware provides the necessary catch point to allow for secure window ventilation, which helps you maintain airflow while keeping your property safe and protected from unwanted entry.
The build quality reflects a focus on daily reliability and long-term functional stability, so the component feels substantial in the hand and performs consistently under the stresses of regular operation. By choosing a universal solution, you avoid the headache of sourcing two separate types of hardware, which means your toolbox stays lighter and your maintenance cycles remain efficient. The finish is chosen to endure the typical environmental challenges faced by window hardware, effectively resisting the oxidation that can lead to stiff movement or mechanical failure over several years of active service.
57mm
TOTAL LENGTH
33mm
OVERALL WIDTH
6mm
COMPACT DEPTH
Versatile
CAM COMPATIBILITY
Why Choose the Universal Night Vent Keep For Roller and Mushroom Espag
This component offers a practical solution to window hardware inventory challenges by combining two distinct locking functions into one reliable unit.
Dual Compatibility Functionality
You can use this single keep for either roller cams or mushroom cams without needing to stock separate items for each application. This saves you valuable time during site visits because you have the right part on hand regardless of the specific espag system already installed on the window frame during your arrival.
Standardised Physical Dimensions
The 57mm length and 33mm width are designed to align with common profile gaps, which means installation is straightforward and requires minimal modification to the frame. By sticking to these standard measurements, the keep provides a clean look that integrates well with existing uPVC or aluminium window systems for a professional finish.
Improved Airflow Management
Providing a dedicated position for the night vent function allows you to leave windows in a partially open but locked state. This cycle of fresh air helps prevent the buildup of condensation inside the home, which protects your window seals and internal decorations from the damp issues that often occur during cooler months.
Engineering Quality and Daily Performance
Precision manufacturing ensures that this keep works smoothly with your espagnolette mechanism to maintain consistent engagement force every time the handle turns.
Internal Mechanism and Force Distribution
The profile of the keep is carefully shaped to accept the cam of the locking bar, which creates a smooth transition from a fully locked position into the night vent catch. The geometry ensures that the force applied by the espag bar is distributed evenly across the keep, so the likelihood of deformation or premature wear is significantly reduced even with heavy daily usage.
We focus on the interaction between the metal cam and the keep surface, which results in a soft tactile sensation whenever you operate the window handle. This smooth action indicates that the tolerances are set to a high standard, so the window closes with a sense of security and tightness that feels firm and professional to the end user.
Weather Resistance and Long-Term Finish
Exposed window hardware faces significant challenges from moisture and temperature swings, which is why the surface treatment of this keep is designed for high corrosion resistance. The material selection ensures the keep maintains its integrity against the elements, so you avoid the unsightly staining or surface pitting that often ruins the appearance of inferior hardware after only a few seasons of exposure.
The finish serves as a barrier against environmental factors that could otherwise lead to binding or stiff movement in the locking mechanism. Because the surface remains smooth over many years, the cam slides into the vent position without any grinding noise, which preserves the life of both your locking espagnolette and the keep itself for years of dependable service.
Installation and Operational Workflow
Follow these steps to fit your new keep and ensure your window operates correctly in both the closed and ventilated positions.
1
Alignment and Marking
Position the keep on the window frame where the existing lock cam makes contact. You should ensure the window is set to the night vent position so the cam aligns with the designated slot in the keep, which makes it easy to mark the screw holes accurately before you begin drilling any pilot holes into the profile.
2
Securing the Component
Use appropriate screws that match your frame material to fix the keep firmly into place. Take care not to overtighten the fasteners because this can sometimes cause the uPVC frame to pull or distort, which could affect the smooth movement of the locking bar when you rotate the handle to engage the vent position.
3
Testing the Action
Operate the window handle several times to confirm the cam moves correctly into the keep. If you feel any resistance or hear a grinding sound, adjust the position of the keep slightly until the movement is fluid and the window feels locked firmly in place, which means the setup is balanced for optimal security and function.
Expert Installation and Care Tip
Applying a tiny amount of high-quality silicone lubricant to the inside of the keep will help the cam slide even more effectively. Checking the screws for tightness once a year during your standard home maintenance routine will also help keep the mechanism operating at its best for a much longer time.
Technical Specifications
| Feature | Rating / Standard | Practical Details |
|---|---|---|
| Total Length | 57mm | Matches common industry footprints for easy retrofitting. |
| Total Width | 33mm | Designed for standard uPVC window frame rebate widths. |
| Depth | 6mm | Provides a low profile to keep the unit discreet. |
| Compatibility | Universal | Suits both mushroom and roller cam locking espags. |
Longevity and Trade Reliability
This universal keep is manufactured to high standards that meet the demands of frequent operation in both domestic and commercial environments. By prioritising material density and precise engineering, we offer a product that stands up to the rigours of daily life while maintaining a clean and professional aesthetic on your windows.
Compatibility and Fitting Notes
Always check your existing keep measurements before ordering because slight variations in profile design can sometimes occur across different manufacturers.
This item is intended for use on windows that feature a suitable espagnolette locking system which supports the night vent feature for airflow.
If your current locking system does not allow for a secondary resting position, this keep might not function as a night vent but can still act as an effective strike plate.
Specification
| Finish | Zinc |
|---|