The technical parameters of the door closer are mainly divided according to the construction standards. We classify and
classify the door closer from the classification and code names, whether there are any staying functions and installation forms.
1、Door closers, classification and code
According to the function of the door closer, the door closer can be divided into six levels, the codes are 1,2,3,4,5,6, and the specific ones can look at the following table.
The ability to close and code |
0~4 maximum closing torque N*M |
0~90 minimum closing torque N*M |
Mechanical efficiency /% |
Application of maximum leaf weight kg |
Suitable for door leaf width range MM |
|
Class A, |
class C, class B |
|
1 |
>5 |
<=10 |
>=2 |
>=50 |
>=40 |
30 |
650~800 |
|
2 |
>10 |
<=16 |
>=3 |
>=50 |
>=40 |
45 |
750~900 |
|
3 |
>16 |
<=24 |
>=4 |
>=55 |
>=45 |
65 |
850~1000 |
|
4 |
>24 |
<=36 |
>=6 |
>=60 |
>=50 |
85 |
950~1100 |
|
5 |
>36 |
<=52 |
>=8 |
>=65 |
>=55 |
120 |
1050~1250 |
|
6 |
>52 |
<=80 |
>=11 |
>=65 |
>=55 |
150 |
1200~1500 |
2、In accordance with the performance of repeated opening and closing can be divided into:
2.1opening and closing cycle number of not less than 1 million times, the code name is A;
2.2opening and closing cycle number of not less than 500 thousand times, the code name is B；
2.3opening and closing cycle number of not less than 300 thousand times, the code name is C.
3、In accordance with whether or not the function of the division, can be divided into：
3.1there are resident functions, codenamed F；
3.2no resident function, codenamed Z.
4、according to the installation form, can be divided into:
4.1 exposure type, codenamed L；
4.2hidden, codenamed Y.
