Series SX Air Supply Valves - Keane Environmental

SERIES SX
Air Supply
Valves
PUBLICATION
V.A.V. & AIR VALVES 5
MAY 2009
Features
● Fully Adjustable Core.
● Excellent Pressure Drop
& Noise Characteristics.
● Quick Easy Valve removal.
● Inclusive Mounting Rings.
● Steel Construction with Durable
White Stoved Finish.
● Fire Rated Valve Option
GILBERTS

SERIES SX
Introduction
Gilberts SX Series of valves have been designed to
provide a compact, clean and attractive means to
supply fresh air to bathrooms, toilets, washrooms and
kitchens, etc.
Manufactured from sheet steel and finished in
durable white stove enamel they can provide
relatively high air volumes whilst retaining good
diffusion and low noise characteristics.
A twist in bayonet type fixing arrangement facilitates
fast installation and removal from the mounting ring
provided to allow for core adjustment or valve
cleaning without affecting the valve settings. A foam
gasket fitted to the valve body also ensures an airtight
seal.
THE EXTRACT VALVE range comprises of two unit types:
Type SX
Type SXF
Standard supply valve design available in five sizes, all complete with mounting ring.
Combination fire damper and supply valve available in size 100 and 125 Diameter complete
with mounting ring.
Features
● Fully adjustable core.
● Excellent pressure drop and noise characteristics.
● Quick, easy valve removal.
● Inclusive mounting rings.
● Steel construction with durable white stoved finish.
● Fire rated valve option.
Valve adjustment is achieved by simply rotating the
central core inwards or outwards on its spindle and
locking into its set position using the holding nut at the
rear of the valve assembly. The SXF Fire Rated Valve
functions as a normal extract valve, sharing the same
basic construction and performance as a normal
supply valve, however this unit also incorporates a
spring loaded core and fusible link mechanism. As
temperatures reach 70°C the fusible link will melt
allowing the core to spring to a failsafe closed position
providing a 2 hour rated unit as tested in accordance
with BS 476 part 20 1987.
Performance
Data
For sizing and selection Performance Data Tables for
each respective size and type are provided on the
following pages. For any given volume the pressure
loss characteristics can be determined at the
intersection with the core positioning lines. The core
position is expressed in terms of the number of mm,
inwards and outwards, from its central position as
shown in the dimensional illustrations.
Noise (dba) ratings are indicated in 5db Bands
across the core positions.
Selection
Proceedure
Having established the positions where units are to
be located, use the Performance Data Tables to
check the volume per unit to identify a suitable unit
size to meet throw requirements. Pressure drop
readings and noise levels can then be identified and
assessed for acceptability.
Ideally units should be sized with the core in its
central position to allow for ajustments and variations
on site.
Air Supply Valves

SERIES SX
Type SX
A
Neck Size
C
Depth
_ Core
+ Position
Overall Size
B
DIMENSIONAL DATA
TYPE SIZE A B C Weight (Kgs)
SX 80 77.5 116 40 0.15
SX 100 97.5 140 40 0.17
SX 125 122.5 170 46 0.23
SX 150 147.5 202 54 0.32
SX 160 157.5 202 54 0.37
SX 200 197.5 254 64 0.52
Type SXF
(Fire Rated)
A
Aperture size
C
Depth
_ Core
+ Position
Overall Size
B
DIMENSIONAL DATA
TYPE SIZE A B C Weight (Kgs)
SXF 100 100 134 91 0.42
SXF 125 125 160 103 0.55
Air Supply Valves

SERIES SX
Performance
Data
SX - 80
Noise Reduction
Core Adjustment (mm)
-2 0 3 6 9
300
200
Throw
5
Key: Blue line indicates Terminal Velocity of
0.2m/s. The corresponding number is
Core Position (mm)
Total Δp (Pa)
100
50
40
30
25
30
35
Throw (m)
4
3
2
0
3
9
20
1
10 2 5 10 20 30 40 50
Air Volume (L/s)
dB(A)
0
0
10 20 30 40 50 60 70
Volume (I/s)
SX + SXF - 100
Core Adjustment (mm)
300
-3 -2 0 2 4 6
200
8
10
5
Total Δp (Pa)
100
50
40
30
25
30
35
Throw (m)
4
3
2
-3
12
4
20
1
dB(A)
10
2 5 10 20 30 40 50
Air Volume (L/s)
0
0 10 20 30 40 50 60 70
Volume (I/s)
SX + SXF - 125
Core Adjustment (mm)
300
-7 -3 0 3 6
9
200
12
15
5
Total Δp (Pa)
100
50
35
40
30
30
25
20
dB(A)
10
5 10 20 30 40 50 100
Air Volume (L/s)
Throw (m)
4
0 9
12
3
-3
2
1
0
0 10 20 30 40 50 60 70
Volume (I/s)

SERIES SX
Performance
Data
Noise Reduction
SX - 150
Core Adjustment (mm)
300
200
-5 -3 0 3 6 10
15
Throw
Key: Blue line indicatesTerminal Velocity of
0.2m/s. The corresponding number is
Core Position (mm)
5
Total Δp (Pa)
100
50
40
30
25
35
30
Throw (m)
4
3
2
0 6
12
20
10
5 10 20 30 40 50 100 150
Air Volume (L/s)
dB(A)
1
0
0 20 40 60 80 100 120 140
Volume (I/s)
SX - 160
Core Adjustment (mm)
300
-10
-5
0 5
10
200
15
5
Total Δp (Pa)
100
50
40
30
25
30
35
Throw (m)
4
3
2
0 6
12
20
1
dB(A)
10
5 10 20 30 40 50 100 150
Air Volume (L/s)
0
0 20 40 60 80 100 120 140
Volume (I/s)
SX - 200
Core Adjustment (mm)
300
200
-3 0 3 6 9 12
15
20
5
Total Δp (Pa)
100
50
40
30
25
30
35
Throw (m)
4
3
2
-3
6
15
20
1
dB(A)
10
5 10 20 30 40 50 100 200
Air Volume (L/s)
0
0 20 40 60 80 100 120 140
Volume (I/s)
Air Supply Valves

SERIES SX
Mounting
Ring
3mm Dia Fixing Holes
A
Neck Size
C
B
Overall size
SIZE A B C Weight (Kgs)
80 79 102 50 0.06
100 99 122 50 0.07
125 124 148 50 0.09
150 149 175 50 0.11
160 159 184 50 0.12
200 199 225 50 0.15
Ordering
Specification
SX
150 15
SERIES:
SX, SXF
SIZE RANGE:
80, 100, 125, 150, 160
and 200 dia.
NUMBER REQUIRED
FIXING
Quick, quarter turn, screw
in fixing into mounting ring.
FINISH
Standard Finish:
Standard finish for all units
is a Stove Enamel White.
Contact
GILBERTS
Head Office and Works
GILBERTS (BLACKPOOL) LTD
Gilair Works, Clifton Road,
Blackpool.
Lancashire FY4 4QT.
Telephone: (01253) 766911
Fax: (01253) 767941
e-mail: sales@gilbertsblackpool.com
Web: www.gilbertsblackpool.com
Gilberts (Blackpool) Ltd reserve the right to alter the specification without notice. For our latest product data please visit www.gilbertsblackpool.com
The information contained in this leaflet is correct at time of going to press © 2009.