For more refined comfort zones with special demands on architecture and design, with fixed air control blades.

Circular and square ceiling swirl diffusers for high volume flow rates
at low sound power levels and low differential pressure
■ Nominal sizes 600, 625
■ Volume flow rate range 31 – 265 l/s or 110 – 954 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems, and with an extended border also suitable
for freely suspended installation
■ Swirl unit inside for the best swirl effect and high induction levels
■ Plenum box with acoustically optimised and lockable damper blade
■ Ideal for comfort zones

With low sound power level for comfort zones, with individually manually adjustable air control blades.

Circular and square ceiling swirl diffusers for high room air change rates
■ Nominal sizes 300, 400, 500, 600, 625, 825
■ Volume flow rate range 7 – 470 l/s or 25 – 1692 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems, and with an extended border also suitable
for freely suspended installation
■ High induction results in a rapid reduction of temperature differences
and airflow velocities
■ Air change rates of up to 35 per hour can be achieved by arranging several
diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line)
■ Ideal for comfort zones

For comfort zones, with fixed air control blades.

Circular and square ceiling swirl diffusers that create high induction levels,
for high room air change rates
■ Nominal sizes 300, 400, 500, 600, 625
■ Volume flow rate range 9 – 235 l/s or 31 – 846 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
■ High induction results in a rapid reduction of temperature differences and airflow velocities
■ Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line)
■ Ideal for comfort zones

For high rooms, with adjustable air control blades.

Circular ceiling swirl diffusers, with manual or motorised adjustment of the air pattern
to ensure draught-free ventilation of the occupied zone both in heating
and cooling modes
■ Nominal sizes 315, 400, 630, 800
■ Volume flow rate range 65 – 1080 l/s or 234 – 3888 m³/h
■ Diffuser face made of galvanised, powder-coated sheet steel
and of aluminium
■ For supply air
■ For variable and constant volume flows
■ High induction results in a rapid reduction of temperature differences
and airflow velocities
■ Discharge direction can be adjusted manually or with an actuator
■ Diffuser face with aerodynamically optimised contours
■ Ideal for high rooms

With low sound power level for comfort and industrial zones, with fixed air control blades.

Circular and square ceiling swirl diffusers
■ Nominal sizes 125, 160, 200, 250, 315, 400
■ Volume flow rate range 4 – 330 l/s or 14 – 1188 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated,
or of aluminium (depending on variant)
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems
■ With discharge nozzle ideal for cooling in case of freely suspended installation
■ High induction results in a rapid reduction of temperature differences
and airflow velocities
■ Air change rates of up to 35 per hour can be achieved by arranging several
diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line)
■ Ideal for comfort zones

The standard TROX TCS/400 – 600 High-Flow Swirl Diffuser is designed to fit into different T-Bar ceiling patterns as well as plaster board ceilings and is available in either a square or round face plate ranging from 400 x 400 or 400 Dia to 600 x 600 or 600 Dia. The diffuser has a radial airflow discharge pattern allowing for a high induction flow rate suitable for both variable and constant volume flow.

With very low sound power level for comfort zones and individually manually adjustable air control blades.

Circular and square ceiling swirl diffusers
■ Nominal sizes 300, 400, 500, 600, 625
■ Volume flow rate range 11 – 315 l/s or 40 – 1134 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems, and with an extended border
also suitable for freely suspended installation
■ High induction results in a rapid reduction of temperature differences
and airflow velocities
■ Air control blades can be adjusted individually for adjusting the air pattern
■ Ideal for comfort zones

With very low sound power level for comfort zones, with fixed air control blades.

Circular and square ceiling swirl diffusers
■ Nominal sizes 300, 400, 500, 600, 625
■ Volume flow rate range 10 – 295 l/s or 36 – 1026 m³/h
■ Diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems,
and with an extended border also suitable for freely suspended installation
■ High induction results in a rapid reduction of temperature differences
and airflow velocities
■ Ideal for comfort zones

For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades.

Square ceiling swirl diffusers with perforated face plate,
for comfort and industrial zones
■ Nominal sizes 600, 625
■ Volume flow rate range 4 – 260 l/s or 16 – 936 m³/h
■ Perforated diffuser face made of galvanised sheet steel, powder-coated
■ For supply and extract air
■ For variable and constant volume flows
■ For all types of ceiling systems, particularly for T-bar ceilings
■ Swirl unit inside, 6 sizes, for the best swirl effect and high induction levels
■ Ideal for comfort zones

The TROX FD600/24 Swirl Diffuser is designed to fit into a standard 600 mm square ceiling tile with 24 fixed blades and is provided with either a square or round face. It is only manufacturer in ONE size but, it can be supplied with blanking plates fitted to the rear of the diffuser face to reduce the air flow if needed. This diffuser is designed to provide a radial air flow discharge pattern with high induction flow rate.

Flexible plenum boxes requiring less transport and storage space.

Flexible plenum boxes for supply air and extract air
■ For circular and square diffuser faces
■ Plenum box made of plastic and galvanised sheet steel
■ For supply and extract air
■ For all types of ceiling systems
■ Horizontal duct connection
■ Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
■ With acoustically optimised and lockable damper blade
■ Spigot with double lip seal
■ Up to 50 % less weight
■ Approximately 60 % less transport and storage space required
■ For comfort zones and industrial zones

Universal Plenum Box

Plenum boxes for supply air and extract air

• For circular and square diffuser faces
• Plenum box made of galvanised sheet steel
• For supply and extract air
• For all types of ceiling systems
• Horizontal duct connection
• Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
• For comfort zones and industrial zones

Slot diffusers with 15 mm diffuser face (nominal width) and adjustable air control elements
■ Nominal lengths from 600 to 1500 mm, 1 slot
■ Volume flow rate range from 7 to 30 (l/s)/m or 25 to 108 (m³/h)/m
■ Diffuser face made of extruded aluminium sections
■ For variable and constant volume flows
■ Suitable for continuous linear arrangement
■ High induction results in a rapid reduction of the temperature difference
and airflow velocity
■ Individually adjustable air control elements
to meet individual local requirements

Slot diffusers with 35 mm diffuser face (nominal width) and adjustable air control elements
■ Nominal length from 600 to 1950 mm, 1 to 4 slots
■ Volume flow rate range 15 – 135 (l/s)/m or 54 – 486 (m³/h)/m
■ Diffuser face made of extruded aluminium sections
■ For variable and constant volume flows
■ Suitable for continuous linear arrangement
■ High induction results in a rapid reduction of the temperature difference and airflow velocity
■ Individually adjustable air control elements to meet individual local requirements

Ventilation and extract ventilation combined in one casing.

Slot diffusers with 35 mm nominal width, used as supply and extract air combination
■ Nominal length from 600 to 1200 mm, 3 slots
■ Volume flow rate range 8 – 40 l/s or 30 – 144 m³/h
■ Diffuser face made of extruded aluminium sections
■ For variable and constant volume flows
■ High induction results in a rapid reduction of the temperature difference and airflow velocity
■ Individually adjustable air control elements to meet individual local requirements

For large, variable volume flow rate ranges, stable discharge patterns even with small volume flow rates.

Slot diffusers with 35 mm nominal width, with adjustable air control elements and self-powered Varyset flap for the adjustment of the active slot diffuser length
■ Nominal length from 900 to 1500 mm, 1 to 4 slots
■ Volume flow rate range 8 – 90 (l/s)/m or 29 – 324 (m³/h)/m
■ Diffuser face made of extruded aluminium sections
■ For variable volume flows
■ Excellent room ventilation even with small volume flow rates due to self-powered Varyset flap
■ Suitable for continuous linear arrangement
■ High induction results in a rapid reduction of the temperature difference and airflow velocity
■ Individually adjustable air control elements to meet individual local requirements

With wide diffuser face for larger volume flow rates.

Slot diffusers with 50 mm nominal width, with adjustable air control elements
■ Nominal length from 600 to 1950 mm, 1 or 2 slots
■ Volume flow rate range 20 – 120 (l/s)/m or 72 – 432 (m³/h)/m
■ Diffuser face made of extruded aluminium sections
■ For variable and constant volume flows
■ Suitable for continuous linear arrangement
■ High induction results in a rapid reduction of the temperature difference and airflow velocity
■ Individually adjustable air control elements to meet individual local requirements

Slot diffusers with 50 mm diffuser face (nominal width) and adjustable air control elements.

• Nominal length: 550, 1175 mm, 1 slot
• Volume flow rate range 10 – 70 l/s or 36 – 252 m³/h
• Diffuser face made of extruded aluminium sections
• For variable and constant volume flows
• Installation into lightweight partition walls with a 50 mm wide metal support structure and a wall thickness of 100 mm
• Diffuser face with spring clip fixing
• High induction results in a rapid reduction of the temperature difference and airflow velocity
• Individually adjustable air control elements to meet individual local requirements

The type ESD slot diffuser is available with 1 to 8 slots and is suitable for supply or return air application. The slot diffusers are suitable for use in systems with constant and variable volume flows.

Acoustically and technically optimised:

The new product type is not only aesthetically attractive but also more energy efficient; plus it offers improved acoustic properties.

• Up to 6 dB less noise than with DUK jet nozzles due to optimised nozzle contours
• Jet angle can be adjusted, limited, and fixed
• Two-step reduction of the discharge range for smaller spaces
• High-grade polymer in RAL white aluminium or pure white
• Simple installation due to bayonet fixing at the discharge ring
• Self-adjusting variant with short response time due to actuator made of shape memory alloy
• Flat external motor ensures compact installation and increased energy efficiency
• Integration with measurement and control system is possible
• Five sizes, each available for duct (rectangular or circular) or direct connection
• All variants are also available with outer casing for visible areas

TROX vent valves type LVS are suitable for all kinds of ventilation systems.

Supply air and exhaust air variants are available, according to the prevailing requirements. The volume flows can be altered by turning the valve disk.

The AFG Type floor grille is developed to be mounted on raised floor systems to match typical 600mm by 600mm floor tiles, to supply cooling to computer rooms or data centers where cooling load is high. Two different types of sub-frame are available to suit different raised floor systems typically available in the market.

This is heavy duty floor grille capable of taking high static load and is robust in construction.

The floor grille was tested independently for:
A. Uniform distributed load test at 12kN/m³
B. Static load (Concentrated Load): Tested at 4.5 kN over an area of 25 mm x 25 mm.
C. Safety load: The sample was successfully tested at 13.5 kN at the centre of the grille over an area of 25 mm x 25.
D. Soft Body Impact Test: The grille did not collapse

The above tests were conducted in accordance with UK´s standard MOB PF2 PS/SPU: 1992. The core of the floor grille is in mill finish. the grille can be supplied with either 0° or 15° deflection blade profile. The steel sub-frame below the grille core is painted matt black in RAL 9005 as standard supply.

The sand trap louvre is used as pre-filter for the protection of air conditioning plants in areas exposed to extreme levels of industrial pollution. It has a degree of separation of sand and large dust particles, even in cases of high dust concentrations. The centrically arranged sections and holes for sand drainage ensure the sand trap louvre is self cleaning and maintenance-free. The sand trap louvre is designed to separate large particles at low air velocities, thus avoiding excessive dust loading on conventional plant filters. It is not intended as a substitute for conventional supply air filtration plant.

Rectangular multileaf dampers for volume flow and pressure control as well as for shutting off ducts and openings in walls and ceiling slabs

• Maximum dimensions of steel and stainless steel variants: 2000 × 1995 mm; of aluminium variant: 1200 × 1050 mm
• Casing air leakage to EN 1751, class C
• Aerofoil parallel or opposed action blades
• Steel and stainless steel variants: blades interconnected by external linkage (for parallel or opposed blade action)
• Aluminium variant: blades interconnected by gears (for opposed action)
• Installation with horizontal or vertical blades
• Available in standard sizes and many intermediate sizes
• Can be combined with external weather louvres

Air displacement vent units types QSH and ISH are mainly used in industrial areas with heights of 3.5 to 10 m, installation can be freely suspended or fixed to columns or walls. In rooms or halls with changing thermal loads the supply air temperature can provide either heating or cooling functions and the air itself can be discharged horizontally or vertically.

Air polluting work processes suggest the use of the type QSH since in the cooling mode it provides a bell-shaped low turbulence air distribution.