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

The mobile self-cleaning filter housing is particularly suited to high particle concentrations and abrasive dusts. It is fitted with HEPA filters ensuring a high filtration efficiency.

TECHNICAL SPECIFICATIONS
Dimensions: 1,600 x 1,900 x 790 mm
Max. air flow: 6,000 m³/h
Max. permissible pressure: ± 6,000 Pa
Max. permissible temperature: 90°C
Filter housing leak-tightness acc. to DIN 24 496: < 3 · 10-5 of the nominal air flow rate at Δp = 2,000 Pa

TECHNICAL DATA
Robust stainless steel filter housing in a gas-tight version complying with the leak-tightness requirements of DIN 25 496, to accommodate HEPA filter elements together with a secondary safety filter.
HEPA filter elements leak-tested.
Contamination-free filter replacement thanks to bag-in/bag-out technology.
Contamination-free dust discharge into a service bag.
Good separation of agglomerated dusts
Suitable for various types of dust, in particular critical particles

The stationary self-cleaning filter housing is particularly suited to high particle concentrations and abrasive dusts. It is fitted with HEPA filters ensuring a high filtration efficiency.

TECHNICAL SPECIFICATIONS
Dimensions: 1,600 x 1,900 x 790 mm
Max. air flow: 10,000 m³/h
Max. permissible pressure: ± 6,000 Pa
Max. permissible temperature: 90°C
Filter housing leak-tightness acc. to DIN 24 496: < 3 · 10-5 of the nominal air flow rate at Δp = 2,000 Pa

TECHNICAL DATA
Robust stainless steel filter housing in a gas-tight version complying with the leak-tightness requirements of DIN 25 496, to accommodate HEPA filter elements together with a secondary safety filter.
HEPA filter elements leak-tested.
Contamination-free filter replacement thanks to bag-in/bag-out technology.
Contamination-free dust discharge into a service bag.
Good separation of agglomerated dusts
Suitable for various types of dust, in particular critical particles

The 100% CBRN filter housing is recommended for the adsorption of high-risk pollutants requiring a long residence time in filter systems. With the EWS-type filter system, the loaded activated carbon is replaced 100% and changed using safe-change technology.

TECHNICAL SPECIFICATIONS
Nominal air flow rate: 30,000 m³/h
Max. permissible pressure differential: 10,000 Pa
Filter housing leak-tightness acc. to DIN 24 496: < 3 · 10-5 of the nominal air flow rate at Δp = 2,000 Pa
Air flow velocity: < 0.5 m/s

TECHNICAL DATA
Easy handling of the Safe Change technology.
Compact and versatile design.
Simple, efficient and clean filling procedure.
High level of protection for the environment and for operating personnel.

The bulk activated carbon CBRN filter housing is recommended for the adsorption of high-risk pollutants requiring a long residence time in filter systems. It features a divided activated carbon bed, which reduces activated carbon consumption by 50% compared with conventional adsorption filter systems.

TECHNICAL SPECIFICATIONS
Nominal air flow rate: 20,000 m³/h
Max. permissible pressure differential: 10,000 Pa
Filter housing leak-tightness acc. to DIN 24 496: < 3 · 10-5 of the nominal air flow rate at Δp = 2,000 Pa
Air flow velocity: < 0.5 m/s

TECHNICAL DATA
Easy handling of the Safe Change technology. Compact and versatile design. Simple, efficient and clean filling procedure. High level of protection for the environment and for operating personnel.
Whereas with the CFH classic filtration system 100% of the loaded carbon is changed in a single operation, the loading capacity of the carbon is used more efficiently with the CFH hightec filtration system. There, only the first half of the filter bed is changed, while the relatively unloaded second half of the filter bed takes the place of the first half. Only the second half of the filter bed is then filled with fresh carbon.

The CBRN carbon filter cassette is recommended and suited to the separation of airborne particles, aerosols and odour nuisance in the nuclear industry, research, industry, etc.

TECHNICAL SPECIFICATIONS
Filter dimensions: 610 x 610 x 292 mm
Max. air flow: 1,500 m³/h
Filling volume: 75 L
Weight: 36 kg

TECHNICAL DATA
Using this type instead of disposable filter cells considerably reduces waste. Only the filter media and the seals need to be changed.
The filter element can be filled with any type of medium. Selecting the right filter medium is essential in order to achieve a high efficiency.

The custom filtration solution container is supplied as a supply air or extract air ventilation unit. It can be fully fitted with fans, filter banks, shut-off dampers, control and sampling systems, or with customised equipment on request.

TECHNICAL SPECIFICATIONS
Customisable to your requirements

A customisable filter wall with a wide range of filter elements to suit your requirements.

TECHNICAL SPECIFICATIONS
According to your technical requirements.

The non-return ventilation damper is a damper that prevents backflow of the air stream within a ventilation flow.

TECHNICAL SPECIFICATIONS
Dimensions: ø 125 up to 315 mm

The leak-tight non-return ventilation damper (DIN 25_496) closes as soon as the pressure in your ventilation network becomes zero or negative and automatically locks off the ducts, protecting the air handling units from back-pressure phenomena.

Extensive practical experience and numerous laboratory tests have been carried out to optimise the efficiency of non-return dampers. The results show that the leak-tight non-return ventilation damper (DIN 25_496) has a very low pressure drop and, above all, low leakage rates.

TECHNICAL SPECIFICATIONS
Dimensions: from 200 x 200 mm to 1,400 x 2,000 mm
Overall damper depth: 360 mm
Max. temperature: 90°C
Maximum leakage to DIN 25 496: <10 L/(h-m²) at 1 bar, 20°C and p = 2,000 Pa

TECHNICAL DATA
The damper frame is in stainless or galvanised steel and can accommodate up to seven blades in reinforced, resistant elastic materials.

The pressure relief ventilation damper is a damper that prevents backflow of the air stream within a ventilation flow.

TECHNICAL SPECIFICATIONS
Dimensions: 150 × 150 up to 600 × 350 mm

The leak-tight / seismic pressure relief damper is resistant to seismic events and to the effects of high pressures and high air flow velocities.

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

TECHNICAL DATA
Leak-tightness in accordance with EN 1751 through the casing class C
Withstands the action of radioactive aerosols – decontamination possible
Minimum service life 40 years (maintenance-free design)