Functional selection of products:
Closers have the functions of closing and locking doors. The functions that need to be purchased include delay, buffer, closing, fixing and closing force adjustment.
Delay function: It takes a long time to close the door for people or things to pass through, such as the occasion where the old and children often come in and out. It is suitable for public places and families. Special safety requirements are not applicable.
Buffer function: It is suitable for the occasion with wall or object behind the door, so as to avoid hitting the object behind the door when the door opens too fast.
Stopping function: It is suitable for indoor occasions such as family or office meeting rooms, and it is convenient for more intensive people to pass through or clean. It is not suitable for occasions with safety and fire protection requirements. Closing Force Adjustment Function: It is suitable for situations where the size or weight of the door can not be determined beforehand.
Frequency of Temperature Used in Use
Indoor: Family, office, meeting room and other common occasions: generally choose small-sized products with door-stopping function, because: 1. The door-closing force is small, for children and the elderly can easily open, closing the door sounds small; 2. The family often needs cleaning, ventilation, so it is best to choose a door-closing device with door-stopping function; 3. Small size of the door closer shape size is also relatively small, installed on the door is also beautiful; 4. Because there is a certain decorative role, choose exquisite and elegant appearance and surface decoration products; 5. Because the indoor temperature is higher, so the use of ordinary hydraulic oil; 6. Cheap price; 7. Generally choose parallel or slideway installation.
Hotels and other high-end occasions: 1. Choose products with exquisite and luxurious appearance and surface decoration; 2. For the purpose of anti-theft, it is best not to choose the shutter function, if necessary, can choose the delay function of the shutter; 3. Because the indoor temperature is higher, so choose ordinary hydraulic oil; 4. Generally choose parallel or slideway installation.
Outdoor: 1. For the purpose of anti-theft, it is better not to choose the shutter function, if necessary, the delay function can be selected; 2. Outdoor temperature is low, so choose the low pour point hydraulic oil shutter; 3. High frequency of use, to choose products that pass the life test.
Selection of fittings for installation mode:
When choosing and purchasing the door closer, it is necessary to determine the installation mode in order to purchase accessories: standard installation, door frame installation does not need special accessories; parallel installation needs to purchase parallel plates; slide track installation needs to purchase slides and corresponding rockers. In addition, there are other general accessories: cover (cover outside the door closer), installation of pad (pad under the door closer, suitable for fencing doors)