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Number of Results: 333

Products (333)

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EM-30 Series

The EM-30 series are vertically mounted backdraft dampers designed to allow horizontal airflow. Model EM-30 has no flange, model EM-31 has a flange on the discharge side, and model EM-32 has a flange on the intake side. All dampers in this series open by air pressure differential and close by gravi

HB-240

Model HB-240 industrial backdraft damper has standard extruded aluminum airfoil blades. The damper comes standard with Spark B and C construction with Spark A construction optional. Pressure: Up to 13½ in. wg Velocity: Up to 5150 fpm Temperature: -40°F to 250°F Spark B & C construction, optional Sp

GFSD-211

Model GFSD-211 is an out of wall combination fire smoke damper with 3V blades. Its design allows for easy access through the grille to the damper, closure device, and the actuator. This model can install vertically or horizontally and is rated for airflow and leakage in either direction. UL 555 1½

HB-230

The HB-230 is a heavy duty industrial backdraft damper. It has a double flanged channel frame and fabricated airfoil blades. Pressure: Up to 13½ in. wg Velocity: Up to 5150 fpm Temperature: -20°F to 250°F

HB-120

Model HB-120 is a heavy duty industrial backdraft damper with a double-flanged channel frame and single thickness blades. Pressure: Up to 8.5 in. wg Velocity: Up to 5150 fpm Temperature: -20°F to 180°F with seals; -20°F to 250°F without seals

HB-110

The HB-110 is a heavy duty industrial backdraft damper with a double-flanged galvanized steel channel frame and extruded aluminum blades. Backdraft dampers are designed to allow airflow in one direction and prevent reverse airflow. These can be used as exhaust or intake dampers. Pressure: Up to 5 i

HB-330

The HB-330 heavy duty industrial backdraft damper features a double flanged galvanized steel frame and double thickness fabricated airfoil blades. External heavy duty linkage, blade counterbalance and ball bearings all are standard. Pressure: Up to 20 in. wg Velocity: Up to 6400 fpm Temperature: -4

HBS-331

The HBS-331 blast suppression damper closes in the opposite direction as normal airflow. These dampers protect against rapid pressure changes due to an explosion (as high as 5.77 psi). Pressures: 1.5 - 5.77 psi to the maximum size Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HBS-330

The HBS-330 blast suppression damper closes in the same direction as the normal airflow. These dampers protect against rapid pressure changes due to an explosion (as high as 5.77 psi). Pressures: 1.5 - 5.77 psi to the maximum size Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HBS-431

The HBS-431 blast suppression damper closes in the opposite direction as normal airflow. These dampers protects against rapid pressure changes (as high as 15 psi). Pressures: 1 - 15 psi to the maximum size Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HBS-430

Model HBS-430 blast suppression damper closes in the same direction as normal airflow. The damper protects against rapid pressure changes (as high as 15 psi). Pressures: 1 - 15 psi to the maximum size Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HBT-221

The HBT-221 is an isolation damper designed for isolation and decontamination applications. The damper has bubble-tight leakage performance per AMCA 500-D. Pressure: Up to 10 in. wg Leakage: Bubble tight per AMCA 500-D Velocity: Up to 3900 fpm Temperature: -40°F to 250°F

HCD-530

The HCD-530 heavy-duty, industrial control damper has a flanged frame and fabricated airfoil blades. Its design controls airflow and provides shutoff in HVAC or industrial process control systems. Blade Type: Fabricated Airfoil Pressure: Up to 45 in. wg Velocity: Up to 6000 fpm Temperature: -40°F t

HCD-430

The HCD-430 is a rectangular industrial control damper with a flanged frame and fabricated airfoil blades. The design controls airflow and provides shutoff in HVAC or industrial process control systems. Blade Type: Fabricated Airfoil Pressure: Up to 35 in. wg Velocity: Up to 6000 fpm Temperature: -

HCD-135

The HCD-135 rectangular industrial control damper has a flanged frame with insulated airfoil blades. Blade Type: Insulated Fabricated Airfoil Pressure: Up to 8½ in. wg Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HCD-130

The HCD-130 rectangular industrial control damper has a flanged frame with airfoil blades. Blade type: Fabricated airfoil Pressure: Up to 8½ in. wg Velocity: Up to 4000 fpm Temperature: -40°F to 400°F

HCD-330

The HCD-330 rectangular industrial control damper features a double-flanged, galvanized steel channel frame and fabricated airfoil blades. Blade Type: Fabricated Airfoil Pressure: Up to 25 in. wg Velocity: Up to 5000 fpm Temperature: -40°F to 600°F

HCD-120

Model HCD-120 is a rectangular heavy-duty industrial control damper with a flanged frame and 3V blades. Blade Type: 3V Pressure: Up to 8½ in. wg Velocity: Up to 3000 fpm Temperature: -40°F to 400°F

HCD-240

Model HCD-240 is a rectangular heavy-duty industrial control damper with a flanged frame and extruded aluminum airfoil blades. Options include spark A resistant construction. Blade Type: Aluminum Extruded Airfoil Pressure: Up to 15 in. wg Velocity: Up to 5000 fpm Temperature: -40°F to 250°F

HCD-230

The HCD-230 rectangular industrial control damper has a flanged frame with fabricated airfoil blades. Blade Type: Fabricated Airfoil Pressure: Up to 15 in. wg Velocity: Up to 5000 fpm Temperature: -40°F to 600°F

HCD-220

The HCD-220 is a rectangular heavy-duty industrial control damper with a flanged frame and 3V blades. The damper controls airflow and provides shutoff in HVAC or industrial process control systems. Its design fits applications requiring higher pressures and velocities. Blade Type: 3V Pressure: Up t

HCD-221

Model HCD-221 is an industrial isolation control damper with a flanged frame. The HCD-221 uses the same blade design that we provide on our bubble tight damper. It is designed to provide shutoff with very low leakage in HVAC or industrial process control systems. This model is available with paralle

HCD-324

The HCD-324 is a heavy-duty industrial control damper with a flanged frame for high temperature applications. It is designed to control airflow and provide shut off in HVAC or industrial process systems. Blade type: High temperature airfoil Pressure: Up to 25 in. wg Velocity: Up to 5000 fpm Temperat

HCD-524

Model HCD-524 is a heavy-duty industrial control damper with a flanged frame for high temperature applications. It is designed to control airflow and provide shut off in HVAC or industrial process control systems. Blade type: High temperature airfoil Pressure: Up to 45 in. wg Velocity: Up to 5000 fp

HCD-130-LE

The HCD-130LE is design for use in replacements in existing lab exhaust units, as a standalone in custom lab exhaust units. They also work on Greenheck's Vektor® units. Blade Type: Fabricated airfoil Pressure: Up to 8½ in. wg Velocity: Up to 4000 fpm Temperature: -40°F to 250°F

HCD-230-LE

The HCD-230LE is design for use in replacements in existing lab exhaust units, as a standalone in custom lab exhaust units. They also work on Greenheck's Vektor® units. Blade Type: Fabricated airfoil Pressure: Up to 15 in. wg Velocity: Up to 5000 fpm Temperature: -40°F to 250°F

HCDR-150

Model HCDR-150 is a round heavy duty industrial control damper with a flanged frame. The damper controls airflow and provides shut off in HVAC or industrial process control system. Available with bolt holes on mounting flanges. Pressure: Up to 6 in. wg Velocity: Up to 4000 fpm Temperature: -40°F to

HCDR-050

The HCDR-050 is a round light duty industrial control damper with a flanged frame. Its design controls airflow and provides shut off in HVAC or industrial process control systems. Available with bolt holes on mounting flanges. Pressure: Up to 6 in. wg Velocity: Up to 3000 fpm Temperature: -40°F to

HCDR-351

The HCDR-351 is an isolation damper with a flanged frame. It provides tight shutoff with very low leakage in HVAC or industrial process control systems. Pressure: Up to 20 in. wg Velocity: Up to 6500 fpm Temperature: -40°F to 400°F

HCDR-350

The HCDR-350 is a heavy duty round industrial control damper with a flanged frame. It controls airflow and provides shut off in HVAC or industrial process control systems. Available with bolt holes on mounting flanges. Pressure: Up to 20 in. wg Velocity: Up to 6400 fpm Temperature: -40°F to 1000°F

HCDR-250

The HCDR-250 is a heavy duty industrial round control damper with a flanged-style frame. It controls airflow and provides shut off in HVAC or industrial process control system. Available with bolt holes on mounting flanges. Pressure: Up to 13½ in. wg Velocity: Up to 5150 fpm Temperature: -40°F to 6

HCDR-152

The HCDR-152 is a heavy duty industrial two-blade round control damper with a flanged frame. This damper provides a more precise control of the airstream through blade modulation. Available with bolt holes on mounting flanges. Pressure: Up to 6 in. wg Velocity: Up to 4000 fpm Temperature: -40°F to

HCDR-450

Model HCDR-450 is a heavy-duty round industrial control damper with a flanged style frame. It is designed to control airflow and provide shut off in an industrial process control systems. A variety of optional features allows the model HCDR-450 to be tailored to the application. Pressure: Up to 30 i

HPR-330

The HPR-330 is an industrial pressure relief damper with double-flanged channel frame. It is designed to protect HVAC systems and industrial processes by relieving air pressure. Blade Type: Fabricated Airfoil Pressure Relief: ½ in. wg to 6 in. wg Back Pressure: 13½ - 20 in. wg Velocity: Up to 6400

HPR-230

Model HPR-230 industrial pressure relief damper has a double flanged channel frame and streamlined airfoil blades. The damper protects HVAC systems and industrial processes by relieving air pressure. Blade Type: Fabricated Airfoil Pressure Relief: ¼ in. wg to 4 in. wg Back Pressure: 6 - 13½ in. wg

HPR-120

The HPR-120 is a pressure relief damper with a double flanged channel frame. It protects HVAC systems and industrial processes by relieving air pressure. Blade Type: 2V Pressure Relief: 0.1 in. wg to 1 in. wg Back Pressure: 5 - 8½ in. wg Velocity: Up to 5150 fpm Temperature: -20°F to 200°F with sea

HTOD-331

The HTOD-331 heavy duty industrial tornado damper protects against tornadoes and sudden pressure changes. This model has a double flanged frame with single thickness fabricated blades. Closes in the opposite direction as normal airflow Pressure: Up to 83 in. wg Velocity: Up to 6400 fpm Temperature:

HTOD-330

The HTOD-330 heavy duty industrial tornado damper protects against tornadoes and sudden pressure changes. This model has a double-flanged frame with single thickness fabricated blades. Closes in the same direction as normal airflow Pressure: Up to 83 in. wg Velocity: Up to 6400 fpm Temperature: -40

RBD-10

The RBD-10 remote balancing damper is a single blade with an integral bearing. EZ Balance remote: handheld remote (equipped with 9-volt power supply) operates the damper actuator Pressure: Up to 1 in. wg Velocity: Up to 2000 fpm Temperature: Up to 180°F Cables, wall plates, and connectors available

RBD-15

The RBD-15 is a remote balancing damper to regulate the flow of air in a HVAC system. EZ Balance Remote: handheld remote (equipped with 9-volt power supply) operates the damper actuator Actuator kit is shipped loose for field assembly Pressure: Up to 4 in. wg Velocity: Up to 2000 fpm Temperature: U

VCDRM-53

The VCDRM-53 is an insert type multi-blade round control damper providing airflow control in round HVAC ductwork. This damper has applications in low to medium pressure and velocity systems. Pressure: Up to 5 in. wg Leakage: 3½ cfm per sq. foot @ 1 in. wg Velocity: Up to 2500 fpm Temperature: Up to

OFSD-311

Model OFSD-311 is an out-of-wall combination fire smoke damper with airfoil blades. It is approved for use in walls, partitions, and floors with fire-resistance ratings less than three hours. This damper allows for easy access through the grille to the damper, closure device, and actuator. Pressure

OFSD-212

Model OFSD-212 is approved for use in walls, partitions, and floors with fire-resistance ratings less than three hours. This damper allows for easy access through the grille to the damper, closure device, and actuator. Pressure: Up to 6 in. wg Velocity: Up to 2000 fpm Temperature: Up to 350°F

OFSD-211

Model OFSD-211 is approved for use in walls, partitions, and floors with fire-resistance ratings less than three hours. This combination fire smoke damper allows for easy access through the grille to the damper, closure device, and actuator. Pressure: Up to 6 in. wg Velocity: Up to 2000 fpm Tempera

SEDFD-210

Model SEDFD-210 is a 3V multi-blade-fire damper for use in walls, floors, and partitions with fire-resistance ratings less than three hours. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire. 316 stainless steel construction Pressure: Up to 10 in. wg Velo

SEFSD-211

The SEFSD-211 is a severe environment 316SS combination fire smoke damper with 3V blades. This model installs in walls, floors, or partitions and is rated for airflow and leakage in either direction. 316 stainless steel construction Pressure: Up to 6 in. wg Velocity: Up to 2000 fpm Temperature: Up

SSDFDR-510

Model SSDFDR-510 is a round fire damper for use in walls, floors, and partitions with fire-resistance ratings less than three hours. Dynamic-rated-fire dampers are in HVAC systems that remain operational in the event of a fire. 304 stainless steel construction Pressure: Up to 4 in. wg Velocity: Up

SSFSD-211

The SSFSD-211 is a 304 stainless steel combination fire smoke damper with 3V blades. This model installs in walls, floors, or partitions and is rated for airflow and leakage in either direction. 304 stainless steel construction Pressure: Up to 6 in. wg Velocity: Up to 2000 fpm Temperature: Up to 35

SSSMD-201

The SSSMD-201 is a Class I leakage rated smoke damper with 304 stainless steel construction and 3V blades. The model installs vertically or horizontally and is rated for airflow and leakage in either direction. Pressure: Up to 6 in. wg Velocity: Up to 2000 fpm Temperature: Up to 350°F

SSFSDR-511

The SSFSDR-511 has round blades. This model installs in walls, floors, and partitions and is rated for airflow and leakage in either direction. 304 stainless steel construction Pressure: Up to 4 in. wg Velocity: Up to 4000 fpm Temperature: 350°F

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