Single Deflection Grille

Type SDO & Type SDOV 

Single deflection aluminium grilles manufactured with aerofoil section blades recommended for use on sidewall supply or extract for conditioned or treated areas in shops, schools, changing rooms, offices etc.

The units are suitable for air handling capacities up to 10 air changes per hour dependant on ceiling height and temperature differentials. The blades can be adjusted through 45° up or down providing a controlled discharge of conditioned air.

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SDO-DDO Selection Data

Air Volume m3/sec Spigot Velocity m/secGrille Size width x heightThrow mPressure Drop n/m2Sound Rating nc
0.51.4
1.66
1.66
350x100
300x100
200x150
2.5-4.0
3.5-5.5
3.7-5.7
2
3
3
-
-
-
0.0751.25
1.87
1.66
2.5
600x100
400x100
300x150
200x150
3.0-5.0
3.8-5.3
4.0-5.6
6.0-7.5
2
5
4
6
-
-
-
20
0.101.33
1.60
1.66
2.22
600x125
500x125
400x150
300x150
3.7-5.0
4.5-5.5
5.2-7.0
5.6-7.6
2
4
4
6
-
-
-
16
0.1251.38
1.66
2.08
2.50
2.77
3.33
600x150
600x125
400x150
400x125
300x150
300x125
4.3-6.0
5.0-6.8
5.5-7.5
6.1-8.6
7.5-10.0
8.5-11.4
2
3
4
6
9
12
-
-
20
20
28
35
0.1501.5
2
2.14
2.5
2.85
3.33
500x200
500x150
350x200
300x200
350x150
300x150
5.5-7.5
6.6-8.6
8.0-10.5
8.3-10.8
8.5-12.5
9.1-13.1
2
4
5
7
10
12
-
-
20
25
28
35
0.202
2.66
2.5
3.33
3.33
4.44
500x200
500x150
400x200
400x150
300x200
300x150
8.0-11.0
9.3-12.6
9.5-13.0
11.2-14.5
12.0-16.0
13.5-17.2
5
7
7
11
12
22
20
23
25
26
35
39
0.251.8
2.38
2.08
2.77
2.5
3.33
700x200
700x150
600x200
600x150
500x200
500x150
8.5-11.5
8.9-11.8
9.0-12.0
9.7-12.7
10.0-13.0
11.3-14.3
4
5
5
7
7
11
-
20
20
25
25
36
0.301.8
2.50
2.2
2.5
3
3.75
800x200
800x150
700x200
600x200
500x200
400x200
7.5-10.5
8.8-12.3
9.0-12.5
10.5-14.5
11.0-15.0
12.0-16.5
4
7
6
8
12
17
-
21
22
25
30
35
0.402
2.22
3
3.8
700x300
600x300
450x300
350x300
10.0-14.0
11.1-14.1
14.5-18.0
17.0-25.0
3
6
8
14
-
25
27
36
0.502
2.77
3.33
4.16
850x300
600x300
500x300
400x300
11.0-15.0
12.1-16.0
13.0-17.5
17.0-23.0
4
4
5
10
20
24
25
33

SDOV are manufactured with single rows of individually adjustable horizontal or vertical blades as specified from HE9TF aluminium with mitred corners.

15mm increments in nominal duct size from 100mm up to 1200mm2.

Standard finish is polyester epoxy powder white 9010 gloss. Other colours from the RAL range are available at an extra cost.

Flange countersunk holes suitable for N°6 or N°8 18mm self tapping screws provided.

Hidden fixings using self tapping screws into duct spigots or grille connections can be incorporated at additional cost.

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