Number of Results: 82
A straight-sided, vented roof curb for use on ridged or double-pitched roofs in kitchen applications. 20, 24, 26, or 30 in. height, varies by size 2 or 5 in. flashing flange
A straight-sided roof curb for use on flat roofs. Includes a wood nailer for the attachment roofing material. 12 to 42 in. heights 2 in. flashing flange
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: f
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:
The HTD-640 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: Alumin
The HTD-621 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. Blade type: Single thickness flat blade with reinforcement Pressure
Model HBR-150 is a heavy duty round industrial backdraft damper with a flanged frame. It allows air to be drawn into a draft relief application or to prevent backflow in an HVAC or a process application. Pressure: Up to 6 in. wg Velocity: Up to 4000 fpm Temperature: Up to 250°F
The HBR-050 is a light duty round industrial backdraft damper with a flanged frame. It allows air to be drawn into a draft relief application or to prevent backflow in an HVAC or a process application. Pressure: Up to 6 in. wg Velocity: Up to 3000 fpm Temperature: Up to 250°F
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
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
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
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
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
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
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
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
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
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
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: -
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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:
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
Model AFJ-801 acoustical louver protects air intake and exhaust openings in exterior walls. The insulated J-style blades provide high free area and low airflow resistance while also reducing airborne noise transmission. 8-inch depth 27% free area (4 ft. x 4 ft.) 887 fpm free area velocity at the be
Model AFJ-601 acoustical louver protects air intake and exhaust openings in exterior walls. The insulated J-style blades provide high free area and low airflow resistance while also reducing airborne noise transmission. Model AFJ-601 offers the best balance of free area and sound transmission in it
AFJ-120 acoustical louvers protect air intake and exhaust openings in exterior walls. The insulated J-style blades provide high free area and low airflow resistance while reducing airborne noise transmission. Model AFJ-120 provides the best sound transmission class rating in its class. 12-inch dept
Manufactured of heavy-gauge aluminum, model ESJ-155 is commonly used for interior or exterior applications where high free area and low airflow resistance is required along with a narrow frame profile. 1 ½-inch depth 46% free area
Model AFL-501 is a severe-duty aluminum tornado louver designed to protect air intake and exhaust ventilation openings on FEMA 361/320 storm shelters or safe rooms. It is tested in accordance with the stringent ICC 500-20 test standard and is UL Listed. Model AFL-501 is available in several install
Model AFL-601 is an all-in-one wind-driven rain FEMA dual-module with horizontal front blades and vertical rear blades designed to protect air intake and exhaust ventilation openings on FEMA 361/320 storm shelters or safe rooms. It is tested in accordance with the stringent ICC 500 (2020 & 2023) te
Model EES-401 is an extruded aluminum equipment screen with inverted horizontal J-blade louvered equipment screen. Design characteristics lend itself for multiple configuration options. These options include multi-sided configurations that may be provided with mitered or formed box style corners as