The variable air volume (VAV) control damper / rectangular is intended for variable air flow regulation in rectangular ducts.

TECHNICAL SPECIFICATIONS
For variable or constant air flow regulation in ventilation systems
Dimensions from 200 x 200 mm to 1,000 x 1,000 mm
Flow rate from 70 to 26,000 m³/h
For air velocities of 1 m/s
Manufactured from galvanised sheet steel

TECHNICAL DATA
Each VAV controller is fitted with a pressure sensor and an actuator
Regulation based on flow rate; duct pressure or ambient pressure
With compact VAV controller (LMV/NMV/SMV, etc.) or separate VAV controller (VRU) and motorised control
MP-BUS, wireless NFC, MODBUS RTU and BACnet MS/TP communication available

The circular variable air volume (VAV) control damper is intended for variable air flow regulation in circular ducts.

TECHNICAL SPECIFICATIONS
For variable or constant air flow regulation in ventilation systems
Dimensions, diameter from 80 to 630 mm
Air flow volume 18 to 7,900 m³/h
For air velocities of 1 m/s
Manufactured from galvanised sheet steel

TECHNICAL DATA
Each VAV controller is fitted with a pressure sensor and an actuator
Regulation based on flow rate; duct pressure or ambient pressure
With compact VAV controller (LMV/NMV/SMV, etc.) or separate VAV controller (VRU) and motorised control
MP-BUS, wireless NFC, MODBUS RTU and BACnet MS/TP communication available
Leak-tightness acc. to EN 1751, external casing leakage class C
Leak-tightness through the blade: class 4

The low-pressure variable air volume (VAV) control damper / circular is intended for low-pressure air flow regulation in circular ducts.

TECHNICAL SPECIFICATIONS
For variable or constant air flow regulation in ventilation systems
Dimensions, diameter from 80 to 315 mm
Air flow volume 9 to 2,244 m³/h
For air velocities of 0.5 m/s
Manufactured from galvanised sheet steel

TECHNICAL DATA
Each VAV controller is fitted with pressure sensors in the air stream and an actuator
MP-BUS, wireless NFC and MODBUS RTU communication available
Compact

The constant air volume control damper / rectangular is intended for constant air flow regulation in rectangular ducts.

TECHNICAL SPECIFICATIONS
For constant air flow regulation in ventilation systems
Dimensions from 200 x 100 mm to 600 x 600 mm
Flow rate from 250 to 12,000 m³/h
For air velocities set manually or via a control system
Manufactured from galvanised sheet steel, aluminium and stainless steel

The constant air volume control damper / circular is intended for constant air flow regulation in circular ducts.

TECHNICAL SPECIFICATIONS
For constant air flow regulation in ventilation systems
Dimensions, diameter from 80 to 400 mm
Air flow volume 50 to 4,500 m³/h
For air velocities set manually or via a control system
Manufactured from galvanised sheet steel

The multi-blade control damper is used primarily for air flow regulation in ventilation systems.

TECHNICAL SPECIFICATIONS
Dimensions from 200 × 200 to 2,000 × 2,000 mm
Manual control or via a control system
In galvanised or stainless steel

TECHNICAL DATA
Minimised pressure drop and noise; leak-tightness through the body class C
Blade covering, UV stabilisation and flammability class V-0
Body, blades and mechanism reaction-to-fire class A1
With flanged connection for ductwork; silicone-free, halogen-free, lead-free
Design certified for ATEX explosion-risk environments

The leak-tight multi-blade control damper is used primarily for air flow regulation in ventilation systems.

TECHNICAL SPECIFICATIONS
Dimensions from 200 × 200 to 2,000 × 2,000 mm
Manual control or via a control system
In galvanised or stainless steel

TECHNICAL DATA
Minimised pressure drop and noise; leak-tightness through the body class C; leak-tightness through the closed blades class 3
Blade covering, UV stabilisation and flammability class V-0
Body, blades and mechanism reaction-to-fire class A1
With flanged connection for ductwork; silicone-free, halogen-free, lead-free
Design certified for ATEX explosion-risk environments

The circular control damper is specifically designed for air flow rate control in ventilation systems.

TECHNICAL SPECIFICATIONS
Diameter from 80 mm to 630 mm
Manufactured from galvanised sheet steel
Manual operation or via a control system
Suitable for use in ATEX areas

The ATEX leak-tight circular control damper (EN1751-4C) is specifically designed for air flow rate control in ventilation systems and offers a high level of leak-tightness.

TECHNICAL SPECIFICATIONS
Diameter from 80 mm to 630 mm
Manufactured from galvanised sheet steel
Manual operation or via a control system
Suitable for use in ATEX areas

The multi-blade leak-tight dosing damper (EN1751-4C) is used to control air flow rate and/or to isolate sections of the ductwork. Its leak-tightness complies with EN1751 class 4C.

TECHNICAL SPECIFICATIONS
Dimensions: from 400 x 150 to 2,000 x 1,950 mm
Max. temperature: 90°C
Maximum permissible external leakage: class C to DIN EN 1751
Maximum permissible internal leakage: class 4 acc. to DIN EN 1751

TECHNICAL DATA
Stainless steel or galvanised steel frame, 1.5 mm, of bolted construction.
Actuator: manual, electric or pneumatic.

The leak-tight dosing damper (EN1751-4C) is used for the ventilation of sensitive areas with stringent external leak-tightness requirements. Its robust, maintenance-free design makes it an excellent component for your nuclear ventilation systems.

TECHNICAL SPECIFICATIONS
Dimensions: from 200 x 200 to 1,000 x 1,000 mm
Max. temperature: 90°C
Max. permissible pressure differential: ±6,000 Pa
Maximum permissible external leakage: class 4 to DIN EN 1751

TECHNICAL DATA
Stainless steel damper.
Frame perforated on both sides for connection to the ductwork.

The leak-tight dosing damper (EN1751-4C) is used for the ventilation of sensitive areas with stringent external leak-tightness requirements. Its robust, maintenance-free design makes it an excellent component for your nuclear ventilation systems.

TECHNICAL SPECIFICATIONS
Diameter dimensions: from 200 to 800 mm
Max. temperature: 90°C
Max. permissible pressure differential: ±6,000 Pa
Maximum permissible external leakage: class 4 to DIN EN 1751

TECHNICAL DATA
Stainless steel damper.
Frame perforated on both sides for connection to the ductwork.

Enhanced leak-tightness dosing dampers (DIN 25496) are used to control air flow rate and/or to isolate sections of the ductwork. Their leak-tightness is enhanced and complies with EN1751 class 4C.

TECHNICAL SPECIFICATIONS
Dimensions: from 150 x 400 mm to 1,650 x 1,800 mm
Max. permissible temperature: 90°C

TECHNICAL DATA
Stainless steel or galvanised steel frame, 1.5 mm, of bolted construction.
Actuator: manual, electric or pneumatic.

The rectangular leak-tight / seismic control damper is specifically designed for air flow rate control in ventilation systems and offers a high level of leak-tightness. It is resistant to seismic events, to high pressures and to high air flow velocities.

TECHNICAL SPECIFICATIONS
Dimensions from 200 × 200 × 210 to 2,000 × 2,000 × 210 mm
Maximum air velocity inside the duct 25 m/s
Maximum pressure differential up to 7,500 Pa
Seismic resistance defined to RRS (DBE, APC) for the building location – tested for an acceleration above 10 g
Damper body material: galvanised steel, painted carbon steel or stainless steel

TECHNICAL DATA
Damper drive: mechanical, electric, pneumatic or combined
Leak-tightness to EN 1751 through the casing, class C, and through the blade, class 3 and 4
Withstands the action of radioactive aerosols – decontamination possible
Minimum service life 40 years (maintenance-free design)

The control damper is manufactured from anodised aluminium. It is used to regulate air flow in rectangular ducts by restricting the air flow with rotating blades.

TECHNICAL SPECIFICATIONS
Used for air flow control and shut-off
Dimensions from 200 × 100 to 2,000 × 2,000 mm
Manual operation or via a control system
Thermal transmittance through the blade up to 2.99 W/m2.K

TECHNICAL DATA
Leak-tightness through the blades class 2, 3 in accordance with EN 1751
Manufactured from aluminium sheet