Fire Tunnel Damper | HVAC Dampers - Type JFM

The JFM is suitable for fire, isolating, balancing or smoke control/extract applications. Operation control components to meet the clients’ specific requirements.

Features:

• High integrity fire damper for arduous locations including tunnel, marine and industrial applications.
• Available in galvanized mild steel or stainless steel construction.
• Available with a range of pneumatic or electric actuators with spring return function and modulating function as required.
• Low leakage rate with option for high temperature seals meeting UL555S Class 1 leakage rate (less than 70 l/s/m2 at 3125 Pa) for smoke containment.
• Rated for operation at 250°C for 2 hours and 400°C for 1 hour to enable smoke control.
• Designed for 30 years service life.
• 4 hour fire integrity rated in accordance with BS 476 Part 20, for both vertical and horizontal installations. ATEX certified for hazardous area use.
• Suitable for operation at +/– 3 kPa. Will withstand +/– 6 kPa pressure fluctuations (BSRIA tested for 8 million pressure cycles).