Door types
For Non-fire Door
If the door is a non-fire door, any door closers can be selected. However, always remember to choose a stable door closer that has a good performance and will not slam the door and damage the frame.
For Fire Door
If you are installing a concealed door closer on a fire-rated door (typically found in commercial buildings and hospitals), the door closer must be fire-rated and CE marked. This shows the product itself is fit for purpose and meets all of the legal fire safety requirements.
Door size & door weight
Door Size
There are two factors to consider when you select a concealed door closer. One is the door thickness, which must be no less than 32mm, in order to embed the concealed door closer body. The other factor is door width that relates to the door closer power size. The minimum door width for a conceal door closer is 600mm (typically fits for EN2 power size), while the maximum door width is 1200mm (typically fits for EN5 power size).
Door Weight
Normally the door weight depends on the overall dimensions of the door leaf, such as door height and door width. However, there are more elements to take into account: core material, any cladding, and weight of the ironmongery. Heavy doors, which are taller or wider than normal size, require a higher power size door closer to provide the strength required to fully close the door. If you’re unsure about sizing, it’s best to choose a unit that can be adjusted during installation. It’s also key to remember that Fire Doors must have a minimum Power Size EN 3 to conform to EN 1154 standard.
door traffic
When selecting a door closer, it’s crucial to consider the volume, type, and frequency of traffic through the door. Here’s how to ensure you choose the best model for your needs:
Traffic Type Categories
We’ve classified traffic type into three levels:
Low Traffic: Up to 10,000 cycles per year
Medium Traffic: 10,000 – 100,000 cycles per year
High Traffic: 100,000 – 500,000 cycles per year
High-Volume Usage Examples:
Hospitals
Schools
Shopping Centers
These facilities typically experience high volumes of traffic through many doors. For areas like corridors, installing hold-open door closers can help maintain smooth traffic flow during busy times.
Frequency of Use
The frequency of door use can vary. Some doors might see infrequent use for periods, followed by spikes in traffic. In such cases, installing a robust, durableconcealed door closer is essential. This ensures the door closer can handle the highest periods of traffic without failing.
door closer force
The force required to fully close a door into its frame depends on the door’s size and weight, as well as any latch or lock it must overcome. Here’s a guide to help you choose the appropriate door closer power size based on door weight and width:
Power Size Guide
| Power Size | Max Door Weight | Max Door Width |
|---|
| 1 | 20kg | 750mm |
| 2 | 40kg | 850mm |
| 3 | 60kg | 950mm |
| 4 | 80kg | 1100mm |
| 5 | 100kg | 1250mm |
| 6 | 120kg | 1400mm |
Always refer to the specific manufacturer’s technical information and test evidence, as maximum door weights can vary across different brands.
Adjustable Strength
Many door closers offer adjustable strength settings to accommodate various door sizes and weights. This flexibility ensures you can achieve the right closing force for your specific door.
Additional Considerations
- Small Rooms: In smaller rooms, additional force may be needed to overcome air pressure.
- External Doors: For external doors, a higher power size and a closer with a latching action can help reduce slamming.
- Fire Doors: Fire doors must have a minimum power size of EN3 to comply with the BS EN1154 standard.
hold open function
When selecting a concealed door closer, it’s important to know when to choose one with a hold-open function and when to opt for one with non-hold-open function. Here’s a clear and professional explanation to help you make an informed decision:
When to Choose a Door Closer with Hold-Open Function
High Traffic Areas:
If your door is located in a high-traffic area such as shopping malls, hospitals, or schools, a door closer with a hold-open function can keep the door open during peak times, making it easier for people to pass through and reducing congestion.
Convenience:
For spaces like meeting rooms, banquet halls, or hotel lobbies, a hold-open function allows the door to stay open, providing convenience for guests to move freely and enhancing the usability of the space.
Frequent Moving and Logistics:
In areas where frequent moving of goods occurs, such as warehouses or supermarkets, a hold-open door closer keeps the door open for easy access, reducing the hassle of opening and closing the door repeatedly.
When to Choose a Door Closer with Non-Hold-Open Function
High Security Areas:
For areas requiring high security, such as server rooms, archive rooms, or finance offices, a door closer without a hold-open function ensures the door automatically closes after each use, preventing unauthorized access.
Fire and Smoke Doors:
Fire doors and smoke doors must remain closed to ensure safety. A door closer with a non-hold-open function is essential to make sure the door closes automatically, providing fire and smoke protection.
Privacy Needs:
In areas where privacy is crucial, such as offices, restrooms, or private meeting rooms, a door closer without a hold-open function ensures the door closes after each use, maintaining privacy.
Summary
Choosing between a concealed door closer with or without a hold-open function depends on your specific needs and usage scenarios. A hold-open function is ideal for convenience and high-traffic areas, while a non-hold-open function is better for security, fire safety, and privacy.
Region Temperature
Selecting the perfect concealed door closer for your market involves considering the climate and temperature variations in different countries. Here’s a friendly guide to help you make the best choice for your specific needs:
Understanding Climate Impact
Cold Climates:
In countries with cold climates, like Russia or Canada, door closers need to perform well even in freezing temperatures. Look for door closers with hydraulic fluid designed to operate smoothly in low temperatures, ensuring reliable performance despite the cold.
Hot Climates:
For regions with hot climates, such as Saudi Arabia or Brazil, it’s essential to choose door closers that can withstand high temperatures without compromising functionality. Opt for closers with high-temperature-resistant hydraulic fluid to prevent the door from closing too quickly or not at all.
Variable Climates:
In areas with significant temperature fluctuations, like the USA or UK, door closers should be versatile and adaptable. Select models with adjustable closing speeds and latching action to accommodate varying conditions throughout the year.
Practical Tips for Selection
Test and Compare:
Always test the door closers in various conditions similar to those in your target market. Comparing performance under different temperatures and humidity levels can provide valuable insights.
Manufacturer Support:
Choose manufacturers who offer comprehensive technical support and after-sales service. This ensures that any issues related to climate adaptability can be promptly addressed.
Feedback and Reviews:
Collect feedback from customers in similar climates and markets. Reviews and testimonials can highlight the real-world performance and reliability of different door closers.
color options
Selecting the right color for door closers is essential for both functionality and aesthetics. Here’s a friendly and professional guide to help you make the best choice for your market:
Factors to Consider
1.Building Aesthetics:
Harmonize with Interior Design: Choose colors that complement the existing color scheme of the building. For modern offices, sleek colors like silver, black, or chrome may be ideal. For more traditional settings, consider warmer tones like bronze or brass.
Brand Colors: If your building represents a brand, aligning the door closer color with the brand’s colors can enhance brand consistency and visibility.
2.Type of Facility:
Commercial Spaces: In offices, hotels, and retail spaces, aesthetics play a significant role. Neutral colors like black, white, or metallic finishes often work best as they blend well with various interior styles.
Industrial Spaces: Functionality and durability are key. Colors like grey or other muted tones that don’t show dirt and wear easily are practical choices.
3.Visibility and Safety:
High Traffic Areas: For areas with high foot traffic, such as schools or hospitals, using a color that stands out slightly can help in identifying the door closer for maintenance and safety checks.
Safety Codes: Ensure that the chosen color meets any local safety regulations or codes, particularly for emergency exits or fire doors where certain color standards might apply.
Practical Tips for Color Selection
Consult with Designers:Working with interior designers can help ensure the door closer color enhances the overall aesthetic of the space.
Use Color Samples:Request color samples from the manufacturer and see how they look in the actual environment before making a final decision.
Consider Custom Colors:Some manufacturers offer custom color options. If the standard colors do not meet your needs, inquire about custom finishes that can better match your requirements.
Maintenance and Longevity:Darker colors may hide dirt and wear better over time, reducing the need for frequent cleaning and maintenance.
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