Showing all 4 results
Greenheck LIFE SAFETY DAMPERS
Description
Life safety dampers protect openings in walls, ceilings, floors and/or partitions to prevent the spread of fire and/or smoke. These products are tested and classified in accordance with UL.
OVERVIEW
DFD
Dynamic rated fire dampers are used in HVAC systems that remain operational in the event of a fire emergency.
FD
Model FD series are approved for use in walls, floors, and partitions with fire resistance ratings less than 3 hours. FD dampers carry a 1½ hour UL fire damper label. UL 555 classifies static rated fire dampers for use in HVAC systems that are automatically shut down in the event of a fire emergency.
FSD
The FSD series installs in walls, floors, or partitions and is rated for airflow and leakage in either direction.
SMD
The SMD series is UL 555S classified and can be applied in a passive smoke control system or as part of an engineered smoke control system. Upon temperature elevation, the damper will close automatically to prevent the spread of smoke.
Greenheck MANUAL BALANCING DAMPERS
Description
Balancing dampers are control dampers that balance the flow of air in an HVAC system. The intended applications for these dampers do not include a positive shutoff or for automatic control. The MBD series are shipped manual hand quadrants that can lock in place.
OVERVIEW
MBD-15
The MBD-15 is a multi-blade manual balancing damper regulating the flow of air in an HVAC system.
- Blade Type: 3V
- Pressure: Up to 1.0 Kpa (4 in. wg)
- Velocity: Up to 10.16 m/s (2000 fpm)
- Temperature: Up to 82°C (180°F)
Greenheck TUNNEL DAMPERS
Description
A tunnel transit damper is a heavy-duty flanged air damper designed to meet the rigorous environment of a transit tunnel. It is qualified to withstand the stresses and pressures of such environments. It meets the requirements of NFPA-130, NFPA-502, UL 555S, and BS476 standards.
OVERVIEW
HTD-630
The HTD-630 is a heavy duty industrial air control damper qualified for use in tunnel and transit systems. This model has a double flanged frame and features mechanically fastened silicone blade seals and stainless steel jamb seals.
- Meets the requirements of NFPA-130, 502, and UL 555S
- Blade type: fabricated airfoil
- Pressure: Up to 24 in. wg
- Velocity: Up to 4,000 fpm
- Temperature: 250°F continuous; 482°F for 2 hours (NFPA-130, 502)
- Fatigue Cycles: 8 million reverse cycles at 24 in. wg
HTD-636
The HTD-636 is a heavy duty industrial air control damper qualified for use in tunnel and transit systems. This model has a double flanged frame and features mechanically fastened silicone blade seals and stainless steel jamb seals.
- Meets the requirements of NFPA-130, 502, and UL 555S
- Fire Rating: BS476 two hours and approved for fire partitions of four hours or less where British Standards are required
- Blade type: Fire-rated fabricated airfoil
- Pressure: Up to 24 in. wg
- Velocity: Up to 4000 fpm
- Temperature: 482°F for 2 hours (NFPA-130, 502)
- Fatigue Cycles: 8 million reverse cycles at 24 in. wg
Greenheck Volume control dampers ( VCD )
Description
Control dampers regulate the flow of air in an HVAC system for intake, exhaust, or mixed air applications.
OVERVIEW
VCD
Volume control dampers are for use in HVAC systems requiring modulating airflow. VCD dampers can be used in applications as an automatic control damper with low to medium pressure and velocity systems. Units feature a blade design, which maximizes free area, increasing damper performance.
