Johnson Controls provides a leakage-rated damper for life safety smoke management systems that meets the new Underwriters Laboratories Inc® (UL) leakage testing procedures and fits your size and application requirements:
- SD-1250 Class I leakage resistance aluminum frame and aluminum airfoil shaped blades
Smoke Dampers are listed under the latest Standard 555S, and carry the UL/cUL label. UL listing number is R11172.
All Smoke Dampers include actuators that have been tested and approved as a matched set, rated for 250°F or 350°F temperature degradation operation:
- National Fire Protection Association (NFPA) Standards 80, 90A, 92A, 92B, and 101
Refer to the SD-1250 and SD-1600 Series Smoke Dampers Product Bulletin (LIT-1201592) for important product information.