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Industrial backdraft damper with flanged channel frame and counterbalanced single thickness extruded aluminum blades. Designed to prevent backflow and provide shutoff in HVAC or indutrial process systems. Standard Spark B & C construction.

• Up to 5 in. wg
• Up to 3,900 fpm
• -20°F to 180°F

Industrial backdraft damper with flanged channel frame and counterbalanced 2V blades. Designed to prevent backflow and provide shutoff in HVAC or indutrial process systems.

• Up to 8.5 in. wg
• Up to 5,150 fpm
• -20°F to 250°F (with seals)

Industrial backdraft damper with flanged channel frame and counterbalanced fabricated airfoil blades. Designed to prevent backflow and provide shutoff in HVAC or indutrial process systems.

• Up to 13.5 in. wg
• Up to 5,150 fpm
• -20°F to 250°F

Industrial backdraft damper with flanged channel frame and counterbalanced extruded aluminum airfoil blades for standard Spark B and C construction. Designed to prevent backflow and provide shutoff in HVAC or industrial process systems. Optional Spark A for enhanced protection.

• Up to 13.5 in. wg
• Up to 5,150 fpm
• -40°F to 250°F

Industrial backdraft damper with flanged channel frame and counterbalanced fabricated airfoil blades. Designed to prevent backflow and provide shutoff in high pressure and velocity HVAC or indutrial process systems.

• Up to 20 in. wg
• Up to 6,400 fpm
• -40°F to 250°F

Round light industrial backdraft damper with flanged frame and counterbalanced blade. Designed to prevent backflow and provide shutoff HVAC applications.

• Up to 6 in. wg
• Up to 3,000 fpm
• Up to 250°F

Round industrial backdraft damper with flanged frame and counterbalanced blade. Designed to prevent backflow and provide shutoff of HVAC and industrial process systems.

• Up to 6 in. wg
• Up to 4,000 fpm
• Up to 250°F

Blast suppression damper that closes to protect against rapid pressure changes from explosions up to 5.77 psi.

• 1-5.77 psi blast pressure

Blast suppression damper that closes to protect against rapid pressure changes from explosions up to 15 psi.

• 1-15 psi blast pressure

Rectangular isolation damper with bubble-tight leakage performance ensuring complete isolation of airflow in HVAC and industrial systems.

• Bubble-tight up to 10 in. wg
• Up to 4,000 fpm
• -40°F to 250°F

Rectangular isolation damper with bubble-tight leakage performance ensuring complete isolation of airflow in HVAC and industrial systems.

• Bubble-tight up to 20 in. wg
• Up to 4,000 fpm
• -40°F to 250°F

Round isolation damper with bubble-tight leakage performance ensuring complete isolation of airflow in HVAC and industrial systems.

• Bubble-tight up to 10 in. wg
• Up to 3,900 fpm
• -40°F to 250°F

Round isolation damper with bubble-tight leakage performance ensuring complete isolation of airflow in HVAC and industrial systems.

• Bubble-tight up to 30 in. wg
• Up to 6,500 fpm
• -40°F to 250°F

Round isolation damper with bubble-tight leakage performance ensuring complete isolation of airflow in HVAC and industrial systems.

• Bubble-tight up to 40 in. wg
• Up to 6,500 fpm
• -40°F to 250°F

Industrial control damper with a flanged frame and 3V blades for reliable airflow control in light to medium duty HVAC systems.

• Up to 8.5 in. wg
• Up to 3,000 fpm
• -40°F to 400°F

Industrial control damper with a flanged frame and fabricated airfoil blades for reliable airflow control in light to medium duty HVAC systems.

• Up to 8.5 in. wg
• Up to 4,000 fpm
• -40°F to 400°F

Industrial control damper designed for retrofit in existing lab exhaust units or standalone use in custom systems. Compatible with Greenheck Vektor® units.

• Up to 8.5 in. wg
• Up to 4,000 fpm
• -40°F to 250°F

Industrial control damper with a flanged frame and insulated fabricated airfoil blades for reliable airflow control in light to medium duty HVAC systems.

• Up to 8.5 in. wg
• Up to 4,000 fpm
• -40°F to 250°F

Industrial control damper with flanged frame and 3V blades. Provides airflow control and shutoff in medium duty HVAC or industrial applications.

• Up to 15 in. wg
• Up to 4,000 fpm
• -40°F to 600°F

Industrial isolation damper with flanged frame and full-perimeter blade seal design. Provides low-leakage shutoff for HVAC and process systems.

• Up to 10 in. wg
• Up to 4,000 fpm
• -40°F to 400°F

Industrial control damper with flanged frame and fabricated airfoil blades. Provides airflow control and shutoff in medium duty HVAC or industrial applications.

• Up to 15 in. wg
• Up to 5,000 fpm
• -40°F to 600°F

Industrial control damper designed for retrofit in existing lab exhaust units or standalone use in custom systems. Compatible with Greenheck Vektor® units.

• Up to 15 in. wg
• Up to 5,000 fpm
• -40°F to 250°F

Industrial control damper with flanged frame and extruded aluminum airfoil blades. Provides airflow control and shutoff in medium duty HVAC or industrial applications. Optional Spark A resistant construction available.

• Up to 15 in. wg
• Up to 5,000 fpm
• -40°F to 250°F

Industrial control damper with flanged frame and fabricated airfoil blades. Provides airflow control and shutoff in medium to heavy duty HVAC or industrial applications.

• Up to 25 in. wg
• Up to 5,000 fpm
• -40°F to 600°F

Industrial control damper with flanged frame and fabricated airfoil blades. Provides airflow control and shutoff in medium to heavy duty HVAC or industrial applications.

• Up to 35 in. wg
• Up to 6,000 fpm
• -40°F to 600°F

Industrial control damper with flanged frame and fabricated airfoil blades. Provides airflow control and shutoff in medium to heavy duty HVAC or industrial applications.

• Up to 45 in. wg
• Up to 6,000 fpm
• -40°F to 600°F

Round light industrial control damper with flanged frame and butterfly blade. Provides airflow control and shutoff in light duty HVAC systems.

• Up to 6 in. wg
• Up to 3,000 fpm
• -40°F to 250°F

Round light industrial isolation damper with flanged frame and butterfly blade with full perimeter seal. Engineered specifically for tight shutoff with very low leakage in light duty HVAC systems.

• Up to 6 in. wg
• Up to 3,000 fpm
• -40°F to 250°F

Round industrial control damper with flanged frame and butterfly blade. Provides airflow control and shutoff in light to medium duty HVAC or industrial applications.

• Up to 6 in. wg
• Up to 4,000 fpm
• -40°F to 400°F

Two-blade round industrial control damper with flanged frame. Allows for more precise airflow modulation in light to medium duty HVAC or industrial applications.

• Up to 6 in. wg
• Up to 4,000 fpm
• -40°F to 400°F

Round industrial control damper with flanged frame and butterfly blade. Provides airflow control and shutoff in medium duty HVAC or industrial applications.

• Up to 13.5 in. wg
• Up to 5,150 fpm
• -40°F to 600°F

Round industrial control damper with flanged frame and butterfly blade. Provides airflow control and shutoff in medium to heavy duty HVAC or industrial applications.

• Up to 20 in. wg
• Up to 6,400 fpm
• -40°F to 1000°F

Round industrial isolation damper with flanged frame and butterfly blade with full perimeter seal. Engineered specifically for tight shutoff and very low leakage in medium to heavy duty HVAC and industrial applications.

• Up to 20 in. wg
• Up to 6,500 fpm
• -40°F to 400°F

Round industrial control damper with flanged frame and butterfly blade. Provides airflow control and shutoff in medium to heavy duty HVAC or industrial applications.

• Up to 30 in. wg
• Up to 7,000 fpm
• -40°F to 400°F

Industrial pressure relief damper with 2V blade and flanged channel frame. Protects light duty HVAC and industrial process systems by relieving excess air pressure.

• 0.1-1.0 in. wg pressure relief
• 5.0-8.5 in. wg back pressure
• Up to 5,150 fpm

Industrial pressure relief damper with fabricated airfoil blades and flanged channel frame. Protects light to medium duty HVAC and process systems by relieving excess air pressure.

• 0.25-4.0 in. wg pressure relief
• 6.0-13.5 in. wg back pressure
• Up to 5,150 fpm

Industrial pressure relief damper with fabricated airfloil blades and flanged channel frame. Protects medium to heavy duty HVAC and process systems by relieving excess air pressure.

• 0.5-6.0 in. wg pressure relief
• 13.5-20 in. wg back pressure
• Up to 6,450 fpm

Tornado damper with flanged frame and fabricated airfoil blades. Spring operated, it protects against rapid negative pressure from passing tornadoes; suitable for exhaust or intake applications.

• Up to 3 psi pressure differential
• Up to 4,000 fpm