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Double deflection grille
Grilles & registers
DAG
Double deflection grille

Two independent blade sets, horizontal front and vertical rear, each adjustable to direct the jet in two planes. For sidewall supply, ceiling slot grilles and large spaces.

W 150–1200 × H 150–1200 mm · 104519155CRT-001b

Spiral duct grille
Grilles & registers Calculated – not tested
SAD
Spiral duct grille

Grille mounted directly on exposed round or spiral duct, with the frame curved to the duct radius. Individually adjustable blades, single or double deflection, optional extractor damper. For supply or return in factories, sports halls and open-ceiling spaces.

W 254–1219 × H 76–305 mm · calculated, not tested

Single deflection grille
Grilles & registers
SAG
Single deflection grille

Aluminium oval blades parallel to the width, 20 mm pitch, individually adjustable. For wall or ceiling supply and return where high airflow at low pressure loss is needed.

W 150–1200 × H 150–1200 mm · 104519155CRT-001a

Linear bar grille
Grilles & registers Cross-geometry from a tested model – not tested
SCLB
Linear bar grille

Linear grille with hollow T-bars in extruded aluminium, running parallel to the long side at 20, 16 or 12 mm pitch. Four frame types plus continuous and curved versions; for ceiling, wall or duct mounting, supply (SCLB) or return (SCLB-O).

L 200–3000 × H 45–315 mm · calculated, not tested

Simple linear bar grille
Grilles & registers Cross-geometry from a tested model – not tested
SCLB-LS
Simple linear bar grille

Simplified linear bar grille: extruded aluminium frame with welded corners, hollow T-bars at 20, 16 or 12 mm pitch. Flange widths 05/15/25, continuous runs and three curved types; supply, or return SCLB-LS/O (removable core).

W 200–3000 × H 80–600 mm · calculated, not tested

Egg-crate return grille
Grilles & registers Calculated – not tested
SECG
Egg-crate return grille

Extruded aluminium return grille with an egg-crate core of 0.35 mm aluminium strip, 12.7 × 12.7 mm cells; 0° or 45° sight-proof core, fixed or removable (SECG-O); round version SECG-R. For high-volume return and extract.

W 200–1250 × H 150–650 mm · calculated, not tested

FlowBar Frameless linear slot diffuser
Grilles & registers Calculated – not tested
SFB
FlowBar Frameless linear slot diffuser

Frameless linear slot diffuser · 1–4 slots × 30 mm

1–4 × 30 mm · L 1200–6000 mm · calculated, not tested

Perforated face grille
Grilles & registers Calculated – not tested
SPG
Perforated face grille

Supply or return grille with a perforated face panel in an extruded aluminium frame. The flat face screens the ceiling void and is easy to clean; used in schools, hospitals and offices. Fixed face (SPG) or removable face (SPG-O).

W 200–1250 × H 200–1250 mm · calculated, not tested

45° C-blade return grille
Grilles & registers Calculated – not tested
SRAG
45° C-blade return grille

Return grille with fixed 45° aluminium C-blades in an extruded aluminium frame; the blades hide the view into the plenum. Core on the main frame (SRAG) or in a removable sub-frame (SRAG-O). For general return air in ceilings or walls.

W 250–1250 × H 150–650 mm · calculated, not tested

Round C-blade return grille
Grilles & registers Calculated – not tested
SRRAG
Round C-blade return grille

Round-face return grille in extruded aluminium with fixed 45° C-blades and a round neck for round or flexible duct. For general return and ventilation in walls or ceilings.

Ø 200–600 mm · calculated, not tested

Z-blade fresh-air grille
Grilles & registers Calculated – not tested
SWL
Z-blade fresh-air grille

Wall grille with fixed Z-blades carrying a water hook, extruded aluminium frame and blades. For fresh-air intake, exhaust or transfer through walls. Two blade pitches: 50 mm (SWL) and 30 mm (SWL(R)) for rain-exposed positions.

W 200–1000 × H 200–1000 mm · calculated, not tested

Condenser discharge deflector
Louvres Test pending
SAC
Condenser discharge deflector

Extruded aluminium deflector with curved blades between two side plates, fitted over the discharge face of an air-conditioner outdoor unit to turn hot air down, up, left or right. For tight spaces where discharge air would hit plants, people, windows, doors or walkways.

4540 … 7070 · pending test

Straight-blade acoustic louver
Louvres Calculated – not tested
SAL-F
Straight-blade acoustic louver

Acoustic louver with straight blades at 45°; each blade is a sheet-metal box filled with mineral wool, with a perforated underside. Four depths, 100–300 mm. For generator rooms, cooling towers, plant rooms and factories that need ventilation with noise control.

W 300–1500 × H 600–2400 mm · calculated, not tested

V-blade acoustic louver
Louvres Calculated – not tested
SAL-V
V-blade acoustic louver

Acoustic sightproof louver with wool-filled V (chevron) blades and a perforated underside; the folded blade blocks direct sight through the louver. Four depths, 100–300 mm. For plant rooms, generators, cooling towers and acoustic enclosures.

W 300–1500 × H 600–2400 mm · calculated, not tested

Sand trap louver
Louvres Calculated – not tested
SSL
Sand trap louver

Sand separator louver with two staggered rows of vertical U-section blades; air turns through the gaps while sand drops into a sloped trough at the base and drains outside. For air intakes in sandy, dusty areas.

W 300–2000 × H 300–3200 mm · calculated, not tested

Oval-blade sun-shade louver
Louvres Calculated – not tested
WWL-E
Oval-blade sun-shade louver

Large-panel extruded aluminium louver with 20 mm hollow oval blades at 45° and 100 mm pitch in an 80 mm deep frame. For external walls or screens that must ventilate while shading against direct sun.

W 300–3000 × H 300–1500 mm · calculated, not tested

K-blade rain-defence louver
Louvres Calculated – not tested
WWL-K
K-blade rain-defence louver

Large-panel extruded aluminium louver with 54° Z-blades carrying two rain hooks at 90 mm pitch. For external walls or free-standing screens that must ventilate while keeping out wind-driven rain.

W 300–3000 × H 300–2400 mm · calculated, not tested

V-blade sightproof louver
Louvres Calculated – not tested
WWL-V
V-blade sightproof louver

Large-panel extruded aluminium louver with inverted-V blades (90° apex, folded lips) at 75 mm pitch in a 100 mm deep channel frame. Overlapping blades restrict the view through the louver; for plant rooms, equipment yards and ventilated façades.

W 300–3000 × H 300–2400 mm · calculated, not tested

Round swirl diffuser, adjustable vanes
Diffusers Calculated – not tested
FK025
Round swirl diffuser, adjustable vanes

Swirl vanes on pivots, adjustable in angle; suits cooled supply at high airflow and large temperature difference, constant or variable volume. Shallow jet drop allows use in low ceilings. Ceiling or wall mounting.

ØN 200 … ØN 630 · calculated, not tested

Adjustable ball jet diffuser
Diffusers Calculated – not tested
FK026
Adjustable ball jet diffuser

Adjustable ball jet nozzle for long-throw supply in large, low-noise spaces such as airports and large lobbies. The cylindrical body ØD slides into round duct of the same size, or mounts on walls and ceilings.

ØC 45 … ØC 323 · calculated, not tested

Round multi-cone diffuser
Diffusers Calculated – not tested
FK028
Round multi-cone diffuser

Multi-cone core of pressed aluminium, 65 mm high in every size, for supply to large spaces. Two faces: FK028 on a square panel, FK004 with a round rim.

Ø300 / ØN Ø150 … Ø800 / ØN Ø600 · calculated, not tested

Spot jet diffuser
Diffusers Calculated – not tested
FK037
Spot jet diffuser

Ball core with a discharge tube that sweeps through about 40°, delivering air to a target point where ceiling diffusers cannot be fitted: supermarkets, large rooms, assembly halls, auditoriums. Wall or duct-side mounting.

ØG 100 … ØG 225 · calculated, not tested

Vent cap
Diffusers Test pending
FK041
Vent cap

Domed cap with downward louvres and an insect screen for the ends of dryer, kitchen extract, bathroom and sauna vent ducts; indoor or outdoor installation.

D100 … D250 · pending test

Adjustable spot diffuser
Diffusers Calculated – not tested
FK043
Adjustable spot diffuser

Swivelling ball core with a thumb-screw volume control at the outlet, no special tools needed. Mounts vertically on walls, horizontally in ceilings or at an angle; suits stages, cinemas and places that are hard to reach with ductwork.

ØG 38.1 … ØG 260.3 · calculated, not tested

Long-throw jet nozzle
Diffusers Calculated – not tested
FK048
Long-throw jet nozzle

Adjustable ball-type jet nozzle carrying heated or cooled air over long distances in large spaces: airports, large lobbies, areas needing constant air movement. Wall, ceiling or duct mounting.

ØC 60 … ØC 165 · calculated, not tested

Square two-position diffuser, 1 core
Diffusers Calculated – not tested
SKD-K1
Square two-position diffuser, 1 core

The core is a flat plaque inside a stepped square frame; air leaves through the perimeter slot in a 360° pattern and the closed face hides the neck. The core sets at two depths for cooling and heating. Round neck ØN.

ØN 145 … ØN 345 · calculated, not tested

Square two-position diffuser, 2 cores
Diffusers Calculated – not tested
SKD-K2
Square two-position diffuser, 2 cores

Two nested square cones in a stepped frame with a pyramid centre; 360° ceiling-attached discharge. The core sets at two depths for cooling and heating. Round neck ØN.

ØN 145 … ØN 345 · calculated, not tested

Square two-position diffuser, 3 cores
Diffusers Calculated – not tested
SKD-K3
Square two-position diffuser, 3 cores

Three nested square cones form three concentric slots with 360° discharge. The core sets in two positions: horizontal for cooling, downward for heating. Round neck ØN.

ØN 145 … ØN 345 · calculated, not tested

One-piece square louver-face diffuser
Diffusers Cross-geometry from a tested model – not tested
SKD-S
One-piece square louver-face diffuser

Face and louvres pressed from a single aluminium sheet with no welds; angled louvres give a four-way, ceiling-attached jet. Flush, surface or lay-in mounting.

300 × 300 (N 150 × 150) … 600 × 600 (N 450 × 450) · calculated, not tested

Round ceiling diffuser, 1 core
Diffusers Calculated – not tested
SRD-1
Round ceiling diffuser, 1 core

The core is a single flat disc for a minimal look; horizontal jet along the ceiling with no downdraught. Weld-free core on an X-frame, released by latches for damper access.

Ø300 / ØN 145 … Ø600 / ØN 395 · calculated, not tested

Round ceiling diffuser, 2 cores
Diffusers Test pending
SRD-2
Round ceiling diffuser, 2 cores

Two concentric round cones with a horizontal jet along the ceiling. Fits a ceiling cut-out, or mounts directly on round or flexible duct where there is no ceiling.

300 … 600 / Ø395 · pending test

Round ceiling diffuser, 4 cores (Ø600 face)
Diffusers Test pending
SRD-4
Round ceiling diffuser, 4 cores (Ø600 face)

Four concentric round cones on a Ø600 face, horizontal jet along the ceiling for larger airflows. Ceiling cut-out or direct mounting on round duct.

600 / Ø345 … 600 / Ø395 · pending test

Disc valve diffuser
Diffusers Calculated – not tested
STD
Disc valve diffuser

Aerodynamic disc on a threaded spindle, raised or lowered to change airflow and pattern (long or wide throw). For supply, return or ventilation; suits extract of humid or greasy air from bathrooms and kitchens.

ØN 95 … ØN 245 · calculated, not tested

Round-pattern diffuser in square panel, 1 core
Diffusers Calculated – not tested
STR-1R
Round-pattern diffuser in square panel, 1 core

A flat round disc on a 600 × 600 square panel that drops into a lay-in grid; horizontal jet along the ceiling with no downdraught. Core on an X-frame, released by latches for damper access.

600 × 600 … 600 × 600 · calculated, not tested

Round-pattern diffuser in square panel, 2 cores
Diffusers Test pending
STR-2R
Round-pattern diffuser in square panel, 2 cores

Two concentric round cones on a 600 × 600 square panel for lay-in grids; horizontal jet along the ceiling. Core on an X-frame, released by latches for damper access.

600 × 600 / Ø145 … 600 × 600 / Ø295 · pending test

Concentric-ring diffuser
Diffusers Calculated – not tested
STRD
Concentric-ring diffuser

Concentric rings, each rotatable to change the discharge angle (0° or 30°); high airflow and long throw for tall spaces such as theatres, concert halls, exhibitions and sports halls. Ceiling, wall or direct duct mounting via a spigot.

ØN 145 … ØN 345 · calculated, not tested

Swirl diffuser, fixed vanes
Diffusers Calculated – not tested
SWF
Swirl diffuser, fixed vanes

Radial swirl vanes give a rotating jet with rapid mixing, so temperature and velocity differences in the occupied zone fall quickly. Round (R) or square (S) face fixed to the plenum by one centre screw; for supply or return.

Ak 0.0088 … Ak 0.0295 · calculated, not tested

Adjustable slot swirl diffuser
Diffusers Test pending
SWS
Adjustable slot swirl diffuser

Square face with slots in a spiral layout, each with its own deflector behind. Turn the deflectors for even swirl, one-way, two-way, or deep downward throw for heating. For supply or return.

300 × 8 … 600 × 48 · pending test

Square 4-way ceiling diffuser
Grilles & registers
SKD
Square 4-way ceiling diffuser

Multi-cone louver face discharging evenly in four directions with a stable ceiling-attached jet and no draught. Lays into T-bar grids or surface-mounts on flat ceilings.

300 / 450 / 600 mm · 104519155CRT-001c

Linear slot diffuser
Grilles & registers
SLD
Linear slot diffuser

One to six 20 mm slots, each with two curved pattern controllers: vertical, angled or split discharge. Seamless linear appearance, joinable into continuous runs.

1–6 × 20 / 32 mm · 104519155CRT-001d

Wall-mounted, 1-way
Displacement diffusers Calculated – not tested
SDV-W1
Wall-mounted, 1-way

Flat perforated face discharging forward in one direction. Mounted on a wall, against a column or built into cabinets and shelves. Top or rear inlet.

600–1500 × 600–1500 mm (15)

Wall / pillar mounted, 3-way
Displacement diffusers Calculated – not tested
SDV-W3
Wall / pillar mounted, 3-way

Perforated front and both sides discharge in three directions. Suited to columns or the middle of long walls; more face area than a W1 of the same size.

600–1500 × 600–1500 mm (15)

Corner quarter-cylinder, 90°
Displacement diffusers Calculated – not tested
SDV-K
Corner quarter-cylinder, 90°

Quarter cylinder for a 90° corner; the curved perforated face discharges evenly over 90°. Sits neatly in the room corner without taking usable floor space; inlet from above or below.

Ø600–1000 × 900–1800 mm (11)

Half-round wall unit, 180°
Displacement diffusers Calculated – not tested
SDV-HR
Half-round wall unit, 180°

Half cylinder against a wall or column, discharging over 180°. Soft architectural form; inlet from above or below.

Ø400–600 × 900–1800 mm (9)

Free-standing cylinder, 360°
Displacement diffusers Calculated – not tested
SDV-R
Free-standing cylinder, 360°

Free-standing cylinder discharging evenly over 360°. Inlet from above (duct inside a cover) or below (floor plenum). For lobbies, airports, exhibition rooms.

Ø400–600 × 900–1800 mm (10)

In-wall, flush face
Displacement diffusers Calculated – not tested
SDV-F
In-wall, flush face

Recessed in a 100 mm stud wall, flush with the wall surface. Frees floor space in classrooms, restaurants, supermarkets. Flat 65 mm top inlet.

400–1200 × 600–1200 mm (11)

Round floor outlet, 360° horizontal
Displacement diffusers Calculated – not tested
SDV-SR
Round floor outlet, 360° horizontal

Round floor outlet for a pressurised raised floor: a deflector cone under the plate turns the upward flow into a 360° horizontal jet along the floor. Fast mixing brings temperature and velocity down within 1–2 m. The stainless plate is walkable; the dirt basket lifts out from above.

NW 200–250 (2)

Ceiling T-bar, downward
Displacement diffusers Calculated – not tested
SDV-T
Ceiling T-bar, downward

Fits a 600 module T-bar ceiling. Cool air falls slowly, follows the interior wall and spreads at floor level. Use where no wall space is left: corridors, perimeters, classrooms.

300–600 × 600–1200 mm (4)

Ceiling, heat / cool changeover
Displacement diffusers Calculated – not tested
SDV-TH
Ceiling, heat / cool changeover

As SDV-T with an added 25 mm heating slot. Cooling: air leaves through the perforated face (displacement). Heating: a changeover damper sends air to the slot for a high-velocity downward jet.

600 × 600–1200 mm (2)

Ceiling, bell-shaped jet
Displacement diffusers Calculated – not tested
SDV-D
Ceiling, bell-shaped jet

Ceiling displacement diffuser: a baffle and funnel behind the perforated face form a bell-shaped jet, so cool air sinks slowly to the floor and spreads like a floor-standing displacement unit. For rooms with no free wall or floor space, mounting height up to 4 m; round plenum box with side spigot.

NW 300–800 (5)

Specification suggestions

Model specification clauses for this product line, ready for the consultant's tender documents: view, copy or print. The neutral version names no brand; the Starduct version adds a reference-product block with test report numbers.

Together with the general section: P15 – General requirements for all products