Dorma BTS 65 floor spring

1. Maximum single action open angle is 116 degree, with 90 degree auto-orientation fitting. Unorientation can be made, according to clients' demand.
2. The perpendicular and the height of the door adjustable by 6mm. 3 degree adjustment available in zero position aligning.
3. Whole hydraulic pressure in door, two-section speed control when close door. The regulating position 90-25 degree and 25-0 degree;
4. Constant temperature set assures steady speed of closing under big difference in temperature.
5. Built-in reductor prevent door from damage in case of extreme exterior pressure or strong wind.
6. Passed 500, 000 opening times' test.