HIDRIA Swirl diffusers, Variable swirl diffusers

Swirl diffusers are designed for airconditioning of room with floor to ceiling heights from 2,6 to 4m and temperature difference between supply and room air of +10K to 10K. Due to the rotary swirling motion of the air discharge, induction of room air occurs very quickly. Variable diffusers are designed for rooms with changing thermal loads which require different conditioning (heating, cooling). They are suitable for rooms with floor to ceiling height of up to 10 m and recommended temperature difference between supply and room air +10K and 10K. Required conditioningis achieved by the means of manual or power driven blades adjusting.

Variable swirl diffusersSwirl diffusers

100

Swirl diffusers are designed for air-conditioning of room with loor to ceiling

heights from 2,6 to 4m and temperature difference between supply and room

air of +10K to -10K Due to the rotary swirling motion of the air discharge,

induction of room air occurs very quickly

Variable diffusers are designed for rooms with changing thermal loads which

require different conditioning (heating, cooling) They are suitable for rooms

with loor to ceiling height of up to 10 m and recommended temperature

difference between supply and room air +10K and -10K Required conditioning

is achieved by the means of manual or power driven blades adjusting

Swirl and variable swirl diffusers are suitable both for comfort as well as

industrial air- conditioning.

■ Swirl diffusers

Application

Swirl diffusers are designed for

air-conditi-oning of room with loor to ceiling heights

from 2,6 to 4 m and temperature

differen-ce between supply and room air of +10K

to -10K Due to the rotary swirling motion

of the air discharge, induction of room air

occurs very quickly Swirl diffusers are

sui-table both for comfort as well as industrial

air- conditioning

Description

Swirl diffusers consist of plenum box

made of galvanised sheet steel and

diffu-ser face Diffudiffu-ser face is made of sheet

steel powder painted in RAL 9010 or any

RAL colour upon customer’s request

OD-8/TR

According to the temperature proile,

OD-8/TR automatically adjusts the inlet

air low The swirl effect is used in the

cooling mode, while the vertical air low is

in effect during heating During transition

periods, the diffuser automatically adjusts

the optimum discharge angle which

contributes to increased comfort level in

the room

ApplicationVariable diffusers are designed for rooms with changing thermal loads which require different conditioning (heating, cooling) They are suitable for rooms with loor to ceiling height of up to 10 m and recommended temperature difference between supply and room air +10K and -10K Required conditioning is achieved

by the means of manual or power driven blades adjusting Variable diffusers are suitable for both comfort and industrial conditioning

DescriptionVariable diffusers consist of plenum box made of galvanised sheet steel and diffuser Diffusers are made of sheet steel

or sheet aluminium (OD-11) and powder painted in RAL 9010 or any RAL colour upon customer’s request

OD-11V/TR

At OD-11V/TR diffuser, centrally ble blades can be adjusted automatically with the thermostat regulation Thermo-stat perceives temperature of the supply air and automatically adjusts the blades angle

Page

Element is made of aluminium

pro-iles, aluminium sheet or aluminium

casting

Element is made of steel sheet

Element is powder painted in

stan-dard RAL 9010 colour Other desired

colour is to be speciied in the order

Shady symbol means possibility of

optional material, surface protection,

Element is intended for air iltration

The ilter of class … is built in

The possibility of the automatic selection and calculation of the technical characteristics of grilles and difusers in regard to the given conditions with the assistance of the Klima ADE program

Aef – efective discharge area (m²)

• Fixed slots

• Possible volume control damper in

spigot

• Diffusing ring is an additional element,

preventing the discharged air to low

over the diffuser face itself

Diffuser face fastening

Diffuser plate can be fastened with

cen-tral screw OD-4/K1 or with four peripheral

screws OD-4/K4 Diffuser plate OD-4/R1

is to be fastened with one central screw

Swirl diffusers

St

RAL 9010

CD

104

4

5 7

6

φ D2 6

3 4

5

φ D2 6

1 Plenum box

2 Inlet spigot

3 Dispersing plate (only for supply)

4 Volume control damper M

5 Traverse

6 Diffuser OD-4/K

1 Plenum box

2 Inlet spigot

3 Dispersing plate (only for supply)

4 Volume control damper M

4 Volume control damper M

5 Dispersing plate (only for supply)

6 Diffuser OD-4

Construction and dimensions:

Construction and dimensions:

Round plenum box

OD-4/R (round front plate)

a) into the ceiling

b) with extended tube under the ceiling

Ordering key

I5 Thermal insulation (PE), thickness 5 mm on the outside of the plenum boxI9 Sound and thermal insulation (from -40 °C to 105 °C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based)

I19 Sound and thermal insulation (from -40 °C to 105 °C) thickness 19 mm on the outside of the plenum box (the material is synthetic rubber-based)

M Volume control damper in the entry spigot

OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-airexhaust square plenum box side entry spigot)

S Side entry spigot

V Top entry spigot

Z Air supply (square plenum box)

ZR Air supply (round plenum box)

A Air exhaust (square plenum box)

AR Air exhaust (round plenum box

K1 Square diffuser plate – central fasteningK4 Square diffuser plate – fastening with four screws*

R1 Circular diffuser plate – central fastening

* K4 version is available only when ordering the diffuser plate without the plenum box

When installing to the plenum box, diffuser plate is always central fastened K1, R1

Air velocity at the throw distances (for OD-4 without diffusion ring and with ceiling effect)

VL (m/s) Air velocity at the throw distance L

supply and room air

room air temperature

LWA (dB(A)) Sound power level

VH1 (m/s) Air velocity at the H1 distance

A, B (m) Distance between diffusers by

length and by width

x Q

t

L V

Q z t

L t

H1 V L t

500 400

100 0.20

0.10

1 1.5 0.15

600 500 800

300

100 0.25

800

500 600

1.0 H1=0.8 1.2 1.4 1.6 2 m

Pressure drop and sound power level

Control lap angle: 90° – opened, 45° – half opened

10 0

300 400

200 m /h 3

500 600

0.07 0.06 0.08

1.6 A=1 2 2.5 0.50

0.03

0.04 0.05

0.07 0.06

0.10 0.08

10

20 17

40 30

80 60 100

25

35 30

45 40

55 50 60

6

20 10

25 23

50 38

80 65 100

60 40 80

20 25 30 35 40 45 50 55 60

10 20 23

38 25

65 50 80

6

100 100

■ Swirl diffuser OD-5

• Fixed grille

• For air supply or exhaust

• Recommended temperature difference

between supplied and internal air in

the room is between – 10 to 0 K

• Low static pressure drop and low noise

level

• Recommended installation height up

to 4.5m

• Diffuser plate should be lined with the

ceiling in order to establish the ceiling

effect

• Square and circular diffuser plate

Diffuser plate attachment

For square diffusers, central fastening

OD-5/K1 or fastening with four screws on

the edges OD-5/K4 can be selected For

cir-cular diffusers, only the central fastening is

provided Diffusers are usually installed with

the plenum box with side or top entry spigot

Plenum boxes with side or top inlet can be

selected If additional air low regulation is

required, the plenum box with the M volume

control damper is recommended

OD-5/K (square front plate)

1 Plenum box

2 Inlet spigot

3 Dispersing plate (only for supply)

4 Volume control damper (M)

3 Dispersing plate (only for supply)

4 Volume control damper (M)

4 Volume control damper (M)

5 Dispersing plate (only for supply)

6 Swirl diffuser OD-5

1 2

3 4

5

φ D2 6

Dimensions and components

Dimensions and componentsDimensions and components

110

Fast selection diagram

Ordering key

I5 Thermal insulation (PE), thickness 5 mm on the outside of the plenum boxI9 Sound and thermal insulation (from -40 °C to 105 °C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based)

I19 Sound and thermal insulation (from -40 °C to 105 °C) thickness 19 mm on the outside of the plenum box (the material is synthetic rubber-based)

M Volume control damper in the entry spigot

OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S-air exhaust square plenum box side entry spigot)**

S Side entry spigot

V Top entry spigot

Z Air supply (square plenum box)

ZR Air supply (round plenum box)

A Air exhaust (square plenum box)

AR Air exhaust (round plenum box)

K1 Square diffuser plate – central fasteningK4 Square diffuser plate – fastening with four screws*

R1 Circular diffuser plate – central fastening

* K4 version is available only when ordering diffuser plate without the plenum box

When installing to the plenum box, diffuser plate is always central fastened K1, R1

** OK is always without perforation

OD – 5 / K1 / A / S / M / I Size 300, 400, 500, 600, 625

Q (m /h) 3 0

x Q

t

L V

Q z t

L t

H1 V L t

Deinition of symbols

Q (m³/h) Air volume per diffuser

x (m) Horizontal distance to wall

H (m) Room height

H1 (m) Ceiling to living zone distance

L (m) Throw distance (L = H1+ x)

VL (m/s) Air speed on the throw distance L

temperatu-re and supply air temperatutemperatu-re

and air flow temperature on distance L

LWA (dB(A)) Sound power level

VH1 (m/s) Air speed on distance H1

A, B (m) Distance between two diffusers

(length and width)

Quick selection table: ΔT = -10K

Quick selection table: ΔT = -5K

Static pressure drop and sound power level

Q (m /h)

80 90 100 150 200 250 300 350 400

5 10 15 20 25 30 40 50 60 80 100 140

15 20 25 30 35 40 45 50

0,25 m/s m/s 0,40 m/s

0,20 m/s

0,15 m/s

0,10 m/s

0,20 m/s

0,15 m/s

0,10 m/s

1,5 2 2 , 5 3 4 5 6 1

0,20 m/s

0,15 m/s

0,10 m/s

1 H1 (m)

0,20 m/s

0,15 m/s

0,10 m/s

1 H1 (m)

0,20 m/s

0,15 m/s

0,10 m/s

1 H1 (m)

0,20 m/s

0,15 m/s

0,10 m/s

1 H1 (m)

50 45

0,20 m/s

0,15 m/s

0,10 m/s

1 H1 (m)

50 45 40 35 30 25

■ Swirl diffuser OD-7

• Fixed blades

• Different installation possibilities

• Three possible diffuser shapes

Aef – efective discharge area (m²)

(Spigot and diffuser are connected)

Type OD-7/KB with plate (F = 595)

is suitable for ceiling rasters of 600 mm

(all sizes available)

Installation with spigot(Spigot and diffuser are connected)

CD

118

4 Volume control damper M

5 Traverse

6 Diffuser OD-7

7 Adapter

Fixing with spring clamps (F)

Installation on cross-bar with central screw (S)

Installation on spigot with central screw (AS)

4 Volume control damper (M)

Fast selection diagram

Ordering key

100, 125, 160, 180, 200, 250, 315, 355, 400

O Three hangers on the diffuser

A Spigot

S Central fastening (delivered without cross-bar)

AS Central fastening on spigot

ST Central fastening with cross bar

F Spring fastening

RB Circular diffuser (funnel)

KB Square diffuser (funnel)

RC Circular diffuser (without funnel)KB/PM Square diffuser with perforated diffuser face

OD – 7 / RB / A / O Size

Ordering key for OD-7 with plenum box

I5 Thermal insulation (PE), thickness 5 mm on the outside of the plenum boxI9 Sound and thermal insulation (from -40 °C to 105 °C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based)

I19 Sound and thermal insulation (from -40 °C to 105 °C) thickness 19 mm on the outside of the plenum box (the material is synthetic rubber-based)

M Volume control damper in the entry spigot

OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S air exhaust square plenum box side entry spigot)

S Side entry spigot

Z Air supply (square plenum box)

ZR Air supply (round plenum box)

A Air exhaust (square plenum box)

AR Air exhaust (round plenum box)

RB Circular diffuser (funnel)

KB Square diffuser (funnel)

RC Circular diffuser (without funnel)KB/PM Square diffuser with perforated diffuser faceKB/size/600 OD-7/KB/size/600 in the plate 595/595 is suitable for suspended ceiling with raster 600 mm

Ordering key: OD-7/KB … size 100/595, 125/595, 160/595, 180/595, 200/595, 250/595, 315/595

Air velocity of the throw distances (with ceiling effect)

x Q

t

L V

Q z t

L t

H1 V L t

1= 0,9 H

1,2 1,6 2,0

0,10 0,15 0,20 0,30 0,40 0,60

0,10 0,15 0,20 0,30 0,40

Δt L /ΔtZ

0,40 0,70

30 50 100

1= 0,9 H

1,2 1,6 2,0

0,10 0,15 0,20 0,30 0,40 0,60

25 36

110

m / h

VL (m/s) Air velocity at the throw distance L

supply and room air

room air temperature

LWA (dB(A)) Sound power level

VH1 (m/s) Air velocity at the H1 distance

A, B (m) Distance between diffusers by

length and by width

Air velocity of the throw distances (with ceiling effect)

m

50

100 150 200

100 150 250 H1

10,0

A = 0,5 1,0 2,0 3,0m

0,01 0,02 0,03 0,04 0,05 0,07 0,10 0,13

5,0

0,50 0,70

50 100 150

200 250

300

400 500

m

50 72 100 150 200 250 300

400 500

0,7 1,0 1,5 2,0 3,0 4,0 7,0

0,10 0,15 0,20 0,30 0,40

10,0

0,50

A = 0,5 1,0 2,0 3,0m

0,01 0,02 0,03 0,04 0,05 0,07 0,10 0,13

50 72

600 800 H

0,7 1,0 1,2 1,6 2,0

1,5 2,0 3,0 4,0 6,0 m

0,10 0,15 0,20 0,30 0,40

m

1 = 0,9

72 100 150 200 300

400 600 800

0,7 1,0 1,5 2,0 3,0 4,0 7,0 m

0,10 0,15 0,20 0,30 0,40

10,0

A = 0,5 1,0 2,0 3,0m

0,01 0,02 0,03 0,04 0,05 0,07 0,10 0,13

50 100

150 250

L A

V = 200 m 3 /h

0,3

0,15 0,2 0,4

50 40

150

75 100

35

0,06 0,1

100

50 75

150

0,4

0,2 0,3

35

100 60 150

v L

122

Pressure drop and sound power level

The diagram values apply to OD-7 with plenum box, at 100 % open regulation blade Line A is for OD-7/RC, Line B is for OD-7/RB

and OD-7/KB

V=650 m 3 /h 500 430 360

0,25 0,20 0,30 0,40

5 4 3 2 1,5 1

V=650 m 3 /h 500

430 360

0,10 0,15 0,20 0,25 0,30 0,40

0,7 1 1,5 2 3 5 7 10

V=650 m

3

/h 500 360

0,01 0,02 0,03 0,04 0,06 0,08 0,10

B = 2,5-4 m

Size 400

H1 = 0,9 1,2 1,6 2,0 m B≥ 4,00m H 1 = 0,9 1,2 1,6 2,0 m A =0,5 1,0 2,0 3,0m

L A

1 = 0,9 H

0,7 1,0 1,2 1,6 2,0

1,5 2,0 3,0 4,0 6,0 m

0,10 0,15 0,20 0,30 0,40 0,50

m

150 200 300 400 600

800 1000 1500

0,7 1,0 1,5 2,0 3,0 4,0 7,0 m

0,10 0,15 0,20 0,30 0,50

10,0

0,60

A = 0,5 1,0 2,0 3,0m

0,01 0,02 0,03 0,04 0,05 0,07 0,10 0,13

0,40 0,70

100 200 300 400 500

300 400 500

200

600 900

1 = 0,9 H

0,7 1,0 1,2 1,6 2,0

1,5 2,0 3,0 4,0 6,0 m

0,10 0,15 0,20 0,30 0,40 0,60

m

150 200 300 400 500

600 800 1000

0,7 1,0 1,5 2,0 3,0 4,0 7,0 m

0,10 0,15 0,20 0,30 0,40

10,0

A = 0,5 1,0 2,0 3,0m

0,01 0,02 0,03 0,04 0,05 0,07 0,10 0,13

50 100 150

250 300 400500

700 900 1100

m / h

40 60 80 100 150 300 6

8 10

30 20

40 50 60

100 80

5

20 25 30 35 40 45

30 20 40

100 60 80

50 50

Q (m 3 /h)

25 20

45 35 30 40

Correction factor for PM version

A))

B

Q (m 3 /h) 300

100

5

10 20 30 40 50 60 70 80

20 25 30 35 40 45

45 40 35 30 25 20

50OD-7 400

10 8 6 5

20

50 40 30

80 100 60

70 100 150 200 300 400 500

20 25 30 35 40 45

10 8

20 30

80

50 40 60 100

45 40 35 30 25 20

L W (dB(

124

■ Swirl diffuser OD-8

• Square or round front plate with radial delector arrangement

Front plate shapes and dimensions

Aef – efective discharge area (m²)

Fastening with four screws K4

OD-8K1 1x M6 in the centerOD-8K4 4x M4 on the lange

St

RAL 9010

φD 500/24

D

600/24, 625/24

φ D 600/24, 625/24

C

M4 M6

φ D 625/54

■ Swirl diffuser with

thermostatic regulation

OD-8/TR

The OD-8/TR swirl diffuser regulation

mechanism with thermostatic regulation

automatically switches the diffuser on in

the cooling mode at inlet air temperatures

below 20 °C and in the heating mode at

temperatures above 30 °C

Available in sizes 600/24, 625/24

Operation

The swirl effect is used in the cooling

mode, while all directional guides (rolls)

have to be in the same position In the

he-ating mode, the regulation system rotates

every second directional guide 90°, so

two guides are oriented facing each other,

which directs the air lows against each

other The gradients of the lows

combi-ne and redirect the warm air vertically

towards the loor

Component parts and

dimensions for OD-8/TR

Cooling with the swirl effect

OD-8 600/24, OD-8 625/24 heating

Formation of the jet in the heating mode

St

RAL 9010

Component parts and dimensions

1 Plenum box

2 Inlet spigot

3 Dispersing plate (only for supply)

4 Volume control damper M

At sizes 300/8, 500/24 and 625/54 an adapter with

39 mm height is added to the plenum box

OD-8/R (round front plate)

3 Dispersing plate (only for supply)

4 Volume control damper M

4 5

3 4

5 Volume control damper (M)

Direction of delectors and discharge

Air jet direction

Ordering key

I5 Thermal insulation (PE), thickness 5 mm on the outside of the plenum boxI9 Sound and thermal insulation (from -40 °C to 105 °C) thickness 9 mm on the outside of the plenum box (the material is synthetic rubber-based)

I19 Sound and thermal insulation (from -40 °C to 105 °C) thickness 19 mm on the outside of the plenum box (the material is synthetic rubber-based)

M Volume control damper in the entry spigot

OK Measuring damper (only in combination with- AR/S-air exhaust round plenum box side entry spigot and A/S air exhaust square plenum box side entry spigot)

S Side entry spigot

V Vertical entry spigot

Z Supply air (square plenum box black plastic air deflectors and perforated sheet steel)

ZR Supply air (round plenum box black plastic air deflectors and perforated sheet steel)

ZW Supply air (square plenum box white plastic air deflectors and perforated sheet steel)ZWR Supply air (round plenum box white plastic air deflectors and perforated sheet steel)

A Exhaust air (square plenum box without plastic air deflectors and without perforated plate)

AR Exhaust air (round plenum box without plastic air deflectors and without perforated plate)

K1 Square diffuser plate – central fastening*

K4 Square diffuser plate – fastening with four screws*

R1 Round diffuser plate – central fastening only*

R4 Round diffuser plate – fastening with five screws (only 800/72 and 825/72)*

TR Thermostat regulation (only sizes 600/24 and 625/24!)

*size 800, 825 (K4 and R4 only): 4 screws along the edge and one additional screw at the frontplate centre K4 version for other dimensions is available only when ordering the diffuser plate without the plenum box

OD – 8 / TR / K1 / Z / S / M / I Size 300/8,

400/16, 500/16, 600/16, 500/24, 600/24, 625/24, 600/48,

625/54, 800/72, 825/72

x Q

t

L V

Q z t

L t

H1 V L t

VL (m/s) Air velocity at the throw distance L

supply and room air

room air temperature

LWA (dB(A)) Sound power level

VH1 (m/s) Air velocity at the H1 distance

A, B (m) Distance between diffusers by

length and by width

130

Fast selection diagram

20- 30 Pa

30 - 45 Pa

30 - 40 dB(A)

40 - 50 dB(A) OD-8/S, Control flap angle 45˚

Air velocity at the throw distances and temperature quotient (with ceiling effect)

600 500 400

300

Q (m /h ) 600

3

500

300 400

200

100

Q (m /h) 3

200 300 400 500

50 70 100 150 200

300/8

1.4 H1=1 2

1 1.5 2 3 4

0.35 0.30 0.25 0.20 0.15 0.10

v (m/s) H1

0.10 0.15 0.20

0.30 0.25 0.35

1 1.5 2 3 4

0.15

0.05 0.10

1 1.5 2 3 4

0.25 0.20

Q (m /h ) 3 800 500

400 300

200

500

Q (m /h) 3

400

200

100

Q (m /h) 3 200

70 50 100 150

v (m/s) H1

v (m/s) H1

1 1.5 2 3

0.05 0.10 0.15 0.25

4

100 200

Q (m /h ) 400

300

3

1.4 H1=1 2

A=1 2

1

0.15 0.20 0.30 0.40 0.50

0.5 0.10

0.02 0.03 0.04 0.05 0.06 0.07

0.04

0.02 0.03

0.06 0.05 0.08 0.10 0.12 0.14

0.15 0.20 0.30 0.40 0.50 0.60 0.70

0.10

1.5 0.5 1 2 3 4

0.03 0.5 1

0.20 0.15

1.5 2 3 40.02

0.30 0.40 0.50 A=1 2

0.80

0.10

0.5 1 1.5 2 3 4 0.10

0.20 0.15 0.30

0.50 0.40

0.03 0.02

0.05 0.04

0.07 0.06

Q (m /h)

3

400 300 200 100

3

100 200 300

Q (m /h)

3

600

50 70

100150200

Air velocity at the throw distance and temperature quotient (with ceiling effect)

v (m/s) H1

v (m/s) H1

v (m/s) H1

4 3 2 1

900 800 1000 1200 1400 1600

Q (m /h) 3

400 700

100 0

1400

1600

400

300 700

14001000

0.30

1.6

0.40 H1=1 2

2 3 4

0.50 0.60

0.10

0.30

0.15 0.20

0.50 0.40 0.60

1.6 H1=1 2

0.20

0.10 0.15

1.6

0.30 0.40 0.50 0.60 H1=1 2

600

800 700

1000 900

1600 1400 1200

Q (m /h) 3

400

300 700

1400100 0

1600

1600

1400

300 400 700 1000

B=2.5 3.5m B=2.5 3.5m B=2.5 3.5m

distance A (m) distance A (m)

1 1.5 2 3 5

0.30 0.40 0.50 0.60 0.70 A=1 2

0.15

0.08 0.10

0.05 4

0.20 0.25 0.30 0.35

0.35 0.30 0.25 0.20 0.15 0.10 0.08 0.05 0.40

0.10 0.15

1

0.20 0.30

1.5 2 3 4 5

0.50 0.60 0.70 A=1 2

0.02 0.03 0.15

0.20

2 3 4 5

0.04 0.06 0.08 0.10 0.12 0.14 0.60

0.30

0.50 0.40

0.80 A=1 2

6 0.05

14

300

70010

400

Q (m /h )

Q (m /h )

3

600 800 1200

Q (m /h )

Pressure drop and sound power level diagrams (Control lap angle: 90° – opened, 45° – half opened)

45°

90°

20 25

35 30

45 40

55 50 60

13 8

25 17

43 35

80 60 100

35 25

100

60 43 80

20 15

50 35

90 70 110 800/72, 825/72OD-8/V

35 25

60 43

100 80

10 7 15 20

50 35

90 70 110 800/72, 825/72

45°

25 20

35 30

45 40

55 50 60

21 15 30

6

70 60 80

42

100 625/54

25 20 30 35 40 45 50 55 60

13 8 17 25 35 43 60 80 100

35 30

45 40

55 50 60

12 7

25 17

43 35

80 60 100

OD-8/V500/24

12 7 17 25 35 43 60 80 100 500/24

10

100

65 80

30 25

40 35

60

50 45 55

42

6

21 15 30

100

70 60 80 600/48

flapOD-8/V

25 30 35 40

60

50 45 55

42

6

30

15 21

100 80

60 70 625/54OD-8/V

25 16

40 32 65 80 100

60

50 45 55

42

6 21 30

15

100

60 70 80

600/48OD-8/S

OD-8/S

flap

control lap position

control lap position

134

■ Swirl diffuser OD-9

• Square or round front mask

• Square or radial delector arrangement

• Plastic delectors

• Possible volume control damper in

spigot

• Foam sealing on the lange

Fastening of the plate

Fastening with four screw is recommended by sizes 600 and 625 For size 800, fastening with ive screws is always applied (4xM4 + 1xM6)

CD

φ 4.5

Section B-B

M6

Central fastening (1xM6)Fastening with four screws (4xM4)

Discharge direction and air jet shape

SWIRL DIFFUSERS,

SLOT DIFFUSERS, AIR DISPLACEMENT

SUPPLY AIR NOZZLES EXTERNAL ELEMENTS

AIR FLOW SOUND ATTENUATORS,