dorma door closer

Types of dorma door closer

Dorma door closers are devices installed on doors to ensure they automatically close after being opened. They are commonly used in commercial and residential spaces. Below are the various types of dorma door closer:

• Regular and Heavy Duty Dorma Door Closer

  Dorma door closer is an ideal solution for automatic door closing in commercial areas. It is suitable for high-traffic areas and heavy doors. It offers reliable performance and durability. This closer is available in different sizes and options. It can be installed above the door frame, on the push side or the pull side.

• Concealed Dorma Door Closer

  This is a popular type of closer and is commonly used in residential and commercial spaces. It is installed within the door frame or door leaf. It offers a more aesthetically pleasing appearance. It is protected from external damage and has a smooth and quiet closing operation.

• Hydraulic Dorma Door Closer

  This door closer uses hydraulic fluid to control the speed and motion of the door. It provides a smooth and quiet operation. It is ideal for areas where noise needs to be minimized. It is commonly used in hospitals, hotels, and offices.

• Electromagnetic dorma door closer

  Electromagnetic dorma door closers are used for fire-rated and access-controlled doors. It uses an electromagnetic hold-open device powered by a fire alarm system or access control. When the fire alarm is activated, the electromagnetic door closer will release the door, and it will automatically close. It is suitable for high-traffic areas and provides excellent security and safety.

• Automatic Dorma Door Closer

  These door closers are designed for automatic doors. It uses a motorized mechanism to control the opening and closing of the door. It is ideal for areas that require hands-free access, such as wheelchair-accessible entrances. It is powered by a sensor, access control, or a push button. It provides convenience and energy efficiency.

• Swing Door Dorma Door Closer

  These door closers are specially designed for doors that swing in both directions. It is suitable for high-traffic areas where the door needs to be opened frequently from either side. It provides a secure and controlled closing motion. It is ideal for cafes, restaurants, and retail stores.

Function and feature of dorma door closer

The dorma door closer is equipped with various features that enhance its functionality. Here are some key features and their benefits:

• Adjustable closing speed

  There are various kinds of dorma door closers with adjustable closing speed. They permit customization of the closing speed depending on the weight of the door or the traffic in the area. Adjustable closing speed ensures that doors close at a comfortable and safe pace instead of slamming or closing too slowly.

• Adjustable latching speed

  The last few inches of the door can be controlled by adjusting the latch speed. This allows the latch to engage securely and quietly.

• Hydraulic damping

  The dorma door closer uses hydraulic damping for smooth and quiet door movement. This technology offers consistent control regardless of weather conditions.

• Hold-open feature

  This feature is important in areas where doors need to remain open for ventilation or easy passage. It allows the door to be held in an open position at an angle preferred by the user. This feature is useful in fire safety and emergency exit doors as it allows the door to be held open at a required angle.

• Backcheck

  This feature controls the door in case of strong push or wind. It prevents the door from being damaged by walls or objects placed nearby. Backcheck enhances the longevity of the door and door closer.

• Delayed closing

  Once the door is opened, it closes slowly within a designated time. This feature is important in areas where people with disabilities or heavy objects are passing through.

• Door stop

  The dorma door closer can prevent doors from opening beyond a certain point. This protects the door and adjacent walls from damage. It minimizes the risk of injury caused by doors hitting objects or people placed nearby.

• Low energy

  This door closer is specifically designed for automatic doors. It allows doors to be opened easily, especially by persons with disabilities. It closes securely and reliably.

Scenarios of dorma door closer

Dorma door closers are commonly used in various scenarios to ensure safe and controlled door closure. Here are some key application areas:

• Commercial Buildings:

  Office Spaces: Dorma door closers are installed in office buildings to ensure doors close quietly and securely, protecting privacy and providing security. They prevent doors from slamming shut, which could cause damage or injury.

  Retail Stores: In retail environments, door closers allow for smooth and silent closing of doors, enhancing the shopping experience. They also protect the entrance doors from excessive wear and tear due to frequent opening and closing.

• Hospitals and Healthcare Facilities:

  In hospitals, especially in areas like operating rooms and patient wards, door closers ensure quiet closure to maintain a calm environment. They also ensure secure closure in places like emergency rooms, operating theaters, and medicine storage areas.

• Educational Institutions:

  Schools and Universities: Dorma door closers are used in classrooms, lecture halls, and administrative offices to ensure doors close securely and quietly, minimizing disruptions to learning environments. They can also control the speed of the door closure, especially in areas with high pedestrian traffic.

• Hotels and Hospitality:

  Guest Rooms: In hotels, door closers ensure smooth and silent closing of guest room doors, ensuring guest privacy and security. They also contribute to the overall aesthetics of the hotel by ensuring the doors operate seamlessly.

• Public Buildings:

  Museums and Libraries: In places like museums and libraries, door closers ensure quiet closure to maintain a serene atmosphere. They also protect delicate items in museums from damage due to swinging doors.

  Government Offices: Dorma door closers can be customized to meet specific security needs in government offices, ensuring doors close securely and without gaps.

• Residential:

  In home settings, Dorma door closers ensure doors close smoothly and silently, enhancing the overall comfort of the living space. They also ensure doors close securely, preventing unauthorized entry and ensuring the safety of children and pets.

How to choose dorma door closer

• Look for Quality

  Choosing a high-quality door closer is an important factor to consider. Look for a door closer with a solid and durable construction.

• Compatibility

  It is important to select a closer that is compatible with the door hardware and the material of the door. Consider the weight and thickness of the door before choosing a closer.

• Adjustability

  Choose a closer that is adjustable so that it can be compatible with different types of doors. An adjustable closer can work well with different types of doors because it can be adjusted to suit different environments.

• Hydraulic and Pneumatic Door Closers

  Hydraulic door closers use hydraulic fluid to close doors smoothly and quietly. They are commonly used in many residential and commercial settings. They provide controlled door closing without slamming.

  Pneumatic door closers use air pressure to close doors. They are usually lighter and more suitable for interior doors. Pneumatic door closers are easier to install and maintain, making them a good choice for certain applications.

• Choosing the Right Size and Strength

  Dorma door closers come in different sizes and strength grades. It is important to choose the right size closer for the door. Consider the weight and size of the door when choosing a closer. The strength of the closer should be sufficient to handle the door without overpowering it or closing it too fast.

• Aesthetic Considerations

  When choosing a closer for aesthetic purposes, consider selecting a closer that will blend well with the décor and design of the room. Look at the finishes and mounting options. Choose a closer that will enhance the overall look and design of the room.

Dorma door closer Q&A

Q1: What is the maximum door width for a dorma door closer?

A1: The maximum door width varies depending on the model. Some models can be used on doors up to 1250mm wide, while others can be used on doors up to 1100mm wide.

Q2: What is the maximum door weight for a dorma door closer?

A2: The maximum door weight varies depending on the model. Some models can be used on doors weighing up to 110 kg, while others can be used on doors weighing up to 120 kg.

Q3: What is the average lifespan of a dorma door closer?

A3: The average lifespan of a dorma door closer is approximately 1 million cycles. This means that the closer can be opened and closed 1 million times before it is likely to fail.

Q4: What is the average closing speed of a dorma door closer?

A4: The average closing speed of a dorma door closer is between 5 and 7 seconds. This is the time it takes for the door to close from the 90-degree open position.

Q5: Are dorma door closers easy to install?

A5: Yes, dorma door closers are easy to install. They come with detailed installation instructions and all the necessary mounting hardware.