Long Throw Nozzle Grille

Long Throw Nozzle Grille
Model WGA
Ferdinand Schad KG
Steigstraße 25-27
D-78600 Kolbingen
Telephone +49 (0) 74 63 - 980 - 0
Fax +49 (0) 74 63 - 980 - 200
[email protected]
www.schako.de
Long Throw Nozzle Grille Model WGA
Contents
Description ........................................................................................................................................ 3
Construction .............................................................................................................................................................................. 3
Model.......................................................................................................................................................................................... 3
Accessories................................................................................................................................................................................. 3
Fastening ................................................................................................................................................................................... 3
Models and dimensions ......................................................................................................................... 4
Dimensions ................................................................................................................................................................................ 4
Dimensions of accessories ....................................................................................................................................................... 10
Technical data .................................................................................................................................. 11
Pressure loss and noise level ................................................................................................................................................... 11
Maximum end velocity of jet .................................................................................................................................................... 12
Jet path .................................................................................................................................................................................... 14
Critical throw ........................................................................................................................................................................... 14
Maximum penetration .............................................................................................................................................................. 15
Induction ratios ........................................................................................................................................................................ 16
Temperature ratios.................................................................................................................................................................... 17
Minimum distances ................................................................................................................................................................. 17
Connection diagrams of electric actuators ............................................................................................................................... 18
Technical data of electric actuators .......................................................................................................................................... 18
Legend ........................................................................................................................................... 19
Order details .................................................................................................................................... 20
Specification texts .............................................................................................................................. 21
01/17 - 2
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Description
Model
Since multi-purpose halls have many different uses, great demands are placed on their air-conditioning and ventilation requirements. Since both sporting and cultural events are held in
these halls, requirements with regard to supply of air volumes
and temperature differences between supply and room temperature also change.
The long throw nozzle grille type WGA has been specially developed to cope with these different requirements. The advanced
and well designed construction of the grille allows high throw
speeds at low noise levels. The high throw speeds result in
deep penetration of the room to be ventilated. This ensures that
fresh air is circulated throughout the whole room and not just
near the grille itself. A further advantage of the long throw nozzle
grille is that the entire air jet is divided into a large number of
individual jets, thus resulting in a high level of induction. The
temperatures and velocities of the individual jets are very
quickly reduced. This means that on the one hand the supply
air does not drop into the occupied area in cooling mode and,
on the other hand the air does not rise too fast towards the ceiling in heating mode.
The long throw nozzle grille type WGA-V with individually adjustable nozzles allows a diverging air jet (pivoting range of
45°). To achieve an even greater throw for cooling applications
and effective, energy saving room heating for heating applications, the long throw nozzle grille type WGA-V or WGA-VG has
been designed with individually or jointly adjustable nozzles. In
the WGA-VG, the nozzles are fitted to a pivoting faceplate which
can be adjusted either electrically or manually (pivoting range
34°).
The long throw nozzle grille is available in models WGA-R,
WGA-R-V and WGA-R-VG for direct mounting to round ducts.
At an extra charge, bars can be fitted to the faceplate as ball-impact guards. An integrated hit-and-miss damper type SS-K is
available for simple air volume regulation.
At an extra charge, a plenum box can be mounted (only available
without hit-and-miss damper). The damper in the connection
piece of the plenum box ( by additional charge ) is for an easy
air volume regulation.
All models can be used in 100% to 40% VAV systems.
The installation of WGA-R type into spiral ducts must take place
free of stress. Avoid using unround or deformed spiral ducts, in
order to protect the grilles from distortion.
WGA
WGA-V
Construction
nozzles
- Plastic, similar to RAL colour 9010 (white) or RAL 9005
(black)
Frame
- Sheet steel, RAL colour 9010 (white) or RAL colour 9005
(black)
- Fixed nozzles, for installation in walls / ducts
- Nozzles individually adjustable, for installation
in walls / ducts
WGA-VG-M - Nozzles jointly, manually adjustable, for installation in walls / ducts
WGA-VG-E - Nozzles jointly, electrically adjustable, for installation in walls / ducts
WGA-R
- Fixed nozzles, for installation in round ductwork
WGA-R-V
- Nozzles individually adjustable, for installation
in round ductwork
WGA-R-VG-M - Nozzles jointly, manually adjustable, for installation in round ductwork
WGA-R-VG-E - Nozzles jointly, electrically adjustable, for installation in round ductwork
Accessories
Plenum box (-ASK)
- Galvanised sheet steel (not available with with hit-andmiss damper type SS-K, for motor adjustment a special
box is required)
Ball-impact guard (-BS)
- Profiled steel (powder-coated in the same colour as the
frame)
Throttle damper (-DK)
- in plenum box
- Damper made of galvanized sheet steel
- Damper fastening made of plastic
Electric actuator E1
- 230 V AC, 3 point control (at extra cost)
Electric actuator E2
- 24 V AC, actuating signal Y, 0 - 10 V DC (standard, at an
extra charge) is fitted if no motor type is specified when ordering.
Electric actuator E3
- 24 V AC, 3-point activation (at an extra charge)
Rubber lip seal (-GD)
- in plenum box on connection pipe, made of special rubber
Hit-and-miss damper (SS-K)
- for regulating air volume made of galvanised sheet steel
Internal insulation (-Ii)
- thermal insulation at the inside of the plenum box
External insulation (-Ia)
- thermal insulation at the outside of the plenum box
Fastening
Screw mounting (-SM)
- Standard, screws must be provided on-site
Concealed mounting (-VM)
- not possible
01/17 - 3
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Models and dimensions
Dimensions
WGA
WGA-BS
2.)
1.)
1.)
2.)
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
WGA-SS-K
WGA-BS-SS-K
Available sizes WGA
Available sizes WGA-BS
L
325
L1
358
L2
310
L3
313
H
125
H1
158
H2
110
H3
113
L
325
L1
350
L2
307
L3
310
H
125
H1
160
H2
107
H3
110
425
458
410
413
225
258
210
213
425
450
407
410
225
260
207
210
525
558
510
513
325
358
310
313
525
550
507
510
325
360
307
310
625
658
610
613
625
650
607
610
825
858
810
813
825
850
807
810
1025
1058
1010
1013
1025
1050
1007
1010
1225
1258
1210
1213
1225
1250
1207
1210
All combined lengths and heights available.
Special dimensions not available!
All combined lengths and heights available.
Special dimensions not available!
Number of nozzles WGA and WGA-BS
L/H
325
425
525
625
825
1025
1225
01/17 - 4
Construction subject to change.
125
3
4
5
6
8
10
12
225
6
8
10
12
16
20
24
325
9
12
15
18
24
30
36
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
WGA-V
WGA-V-BS
1.)
2.)
1.)
2.)
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
WGA-V-SS-K
WGA-V-BS-SS-K
Available sizes WGA-V
L
325
L1
358
L2
310
Available sizes WGA-V-BS
L3
313
H
125
H1
158
H2
110
H3
113
L
325
L1
350
L2
307
L3
310
H
125
H1
160
H2
107
H3
110
425
458
410
413
225
258
210
213
425
450
407
410
225
260
207
210
525
558
510
513
325
358
310
313
525
550
507
510
325
360
307
310
625
658
610
613
625
650
607
610
825
858
810
813
825
850
807
810
1025
1058
1010
1013
1025
1050
1007
1010
1225
1258
1210
1213
1225
1250
1207
1210
All combined lengths and heights available.
Special dimensions not available!
All combined lengths and heights available.
Special dimensions not available!
01/17 - 5
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
WGA-VG-M
1.)
WGA-VG-E
Actuator
2.)
lateral
centred
WGA-VG-E-SS-K
Actuator
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
lateral
centred
WGA-VG-M-SS-K
Actuator for WGA-VG-E and WGA-VG-E-SS-K
WGA-VG-M-BS
1.)
2.)
lateral
L=325 to 625 (for H=125)
L=325 to 525 (for H=225)
centred
L=825 to 1025 (for H=125)
L=625 to 1025 (for H=225)
The models WGA-VG-E and WGA-VG-E-SS-K are available
with plenum box upon request.
Available sizes
WGA-VG-M-... / WGA-VG-E-...
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
WGA-VG-M-BS-SS-K
L
325
L1
350
L2
320
L3
310
H
125
H1
160
H2
117
H3
110
425
450
420
410
225
260
217
210
525
550
520
510
625
650
620
610
825
850
820
810
1025 1050 1020 1010
All combined lengths and heights available.
Special dimensions not available!
Please note that for WGA-VG-E a motor has been mounted!
List of motors
-E1
-E2 (standard)
-E3
01/17 - 6
Construction subject to change.
Motor
Belimo NM230A-F
Belimo NM24A-SR-F
Belimo NM24A-F
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
WGA-R-V
WGA-R
1.)
1.)
1.) from L  625 mm
1.) from L  625 mm
WGA-R-SS-K
WGA-R-V-SS-K
WGA-R-BS
WGA-R-V-BS
WGA-R-BS-SS-K
WGA-R-V-BS-SS-K
Available sizes
WGA-R / WGA-R-V / WGA-R-BS / WGA-R-V-BS
L
325
L1
358
L2
308
L3
310
425
458
408
410
525
558
508
510
625
658
608
610
825
858
808
810
H
H1
H2
H3
115 108 110 112
øD
300
800
600
215 208 210 212
1025 1058 1008 1010
1100
1225 1258 1208 1210
All combined lengths and heights available.
Special dimensions not available!
01/17 - 7
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
WGA-R-VG-M
1.)
WGA-R-VG-E
2.)
Actuator lateral
L = 325 to 625
1.) Indentation for slotted shallow-raised countersunk-head
tapping screw DIN ISO 7051 pitch 3.9 (on-site)
2.) from L  625 mm
WGA-R-VG-M-SS-K
Actuator central
L = 825 to 1025
Available sizes
WGA-R-VG-M / WGA-R-VG-M-BS / WGA-R-VG-E
WGA-R-VG-M-BS
L
L1
L2
L3
H
H1
H2
H3 øD
325 350 320 310
300
425 450 420 410 115 102 107 110
525 550 520 510
800
625 650 620 610
600
825 850 820 810 215 202 207 210
1025 1050 1020 1010
1100
All combined lengths and heights available.
Special dimensions not available!
Please note that for WGA-R-VG-E a motor has been mounted!
List of motors
WGA-R-VG-M-BS-SS-K
-E1
-E2 (standard)
-E3
01/17 - 8
Construction subject to change.
Motor
Belimo NM230A-F
Belimo NM24A-SR-F
Belimo NM24A-F
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Mounting situation
WGA-R / WGA-R-V / WGA-R-VG
H (mm)
115
215
min.
300
600
øD
ideal
500
750
max.
800
1100
The grilles only lie completely flush with ideal duct diameter.
Duct diameter
Apart from high stability and torsional rigidity, the diagonal
flange and the two height dimensions allow an optimum adjustment of the long throw nozzle grilles types WGA-R / WGA-R-V /
WGA-R-VG to sheet steel or spiral ducts. The selection of the
grille height depends on the duct measures shown in the table.
The installation of WGA-R type into spiral ducts must take place
free of stress. Avoid using unround or deformed spiral ducts, in
order to protect the grilles from distortion.
01/17 - 9
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Dimensions of accessories
Arrangement of connection pieces
Plenum box (-ASK) with lateral connection piece (-AS1)
-AS2
external
-AS3
Grilles cannot be fitted with a hitand-miss damper if a plenum box is
attached, i.e., either a hit-and-miss
damper or a plenum box can be fitted.
X
WGA
WGA-BS
WGA-V
WGA-V-BS
75
90
For the long throw nozzle grille
types WGA-VG-..., a special plenum box (special height+special length) is required. Dimensions and prices on request.
-AS1
- Lateral connection piece (-AS1, standard)
- Connection piece from above (-AS2)
- Connection piece front side (-AS3)
Dimensions and prices for connection piece from above (-AS2)
and connection piece front side (-AS3) upon request.
Throttle damper (-DK)
When ordering a plenum box (-ASK) with
throttle damper (-DK), the box height (KH)
will differ by 40 mm.
Available sizes WGA / WGA-V with ASK -AS1
L
325
425
525
625
825
1025
1225
L
325
425
525
625
825
1025
1225
L
325
425
525
625
825
1025
1225
H
125
H
225
H
325
KL
320
420
520
620
820
1020
1220
KL
320
420
520
620
820
1020
1220
KL
320
420
520
620
820
1020
1220
H1
118
H1
218
H1
318
KH
245
245
245
245
285
285
285
øD
158
158
158
158
198
198
198
KH
285
285
285
335
335
335
335
øD
198
198
198
248
248
248
248
Model KH
335
335
335
400
400
400
400
øD
248
248
248
313
313
313
313
KH with DK = KH + 40 mm
Rubber lip seal (-GD)
Detail X
Insulation for plenum box
internal (-Ii)
01/17 - 10
Construction subject to change.
external (-Ia)
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Technical data
Pressure loss and noise level
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG (length L=1225 not possible for model ...-VG-...)
without-hit-and miss damper
Effective velocity
Straight inflow
=1.2 kg/m³
without-hit-and miss damper
Installation in main stream of duct
with hit and miss damper type SS-K (100% OPEN)
Installation in main stream of duct
=1.2 kg/m³
=1.2 kg/m³
SS-K 50 % OPEN:
pt 50% = pt 100% x 1.42
Face area [AStirn (m²)]
H
(mm)
125
225
325
325
0,0310
0,0614
0,0918
425
0,0412
0,0816
0,1220
L (mm)
525
625
825
0,0514 0,0616 0,0820
0,1018 0,1220 0,1624
0,1522 0,1824 0,2428
1025
0,1024
0,2028
0,3032
1225
0,1262
0,2464
0,3666
Correction factor (KF)
Astirn (m²) 0,032 0,040 0,051 0,064 0,080 0,100 0,128 0,160 0,203 0,256 0,320 0,367
KF
(-)
-5
-4
-3
-2
-1
0
+1
+2
+3
+4
+5
+6
01/17 - 11
Construction subject to change.
LWA = LWA1 + KF
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Maximum end velocity of jet
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
without coanda effect
01/17 - 12
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
with coanda effect
01/17 - 13
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Jet path
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
Free jet without coanda effect
Heating
Cooling
Critical throw
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
with coanda effect (in cooling mode)
01/17 - 14
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Maximum penetration
(in heating mode)
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
01/17 - 15
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Induction ratios
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
without coanda effect
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
with coanda effect
01/17 - 16
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Temperature ratios
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
without coanda effect
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
with coanda effect
Minimum distances
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
without coanda effect
WGA, WGA-V, WGA-VG, WGA-R, WGA-R-V, WGA-R-VG
with coanda effect
If the selected minimum distance "z" is less than (x • 0.2), the
grille is referred to as a continuous grille
01/17 - 17
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Connection diagrams of electric actuators
Make Belimo
(-E1) NM230A-F / (-E3) NM24A-F
L
N

-
+
1
2
1

+
Y
+
U
0
3

-
L
on-site
N

-
3-point control
on-site
OPEN/CLOSED control
Make Belimo
(-E2) NM24A-SR-F (standard)
2
0
1
DC 0 ... 10 V
DC 2 ... 10 V
on-site
1
3
2
3
5
0
1
Technical data of electric actuators
Make Belimo (-E1) NM230A-F
Make Belimo (-E2) NM24A-SR-F (standard)
Rated voltage:
Functional range:
Power consumption
- Operation:
- idle position
- Dimensioning:
Torque
(rated torque):
Running time:
Sound power level
Protection class:
Protection type:
EMC:
Low voltage directive:
Ambient temperature:
Rated voltage:
Functional range:
Power consumption
- Operation:
- idle position
- Dimensioning:
Torque
(rated torque):
Activation
- Actuator signal Y:
AC 100 ... 240 V, 50 / 60 Hz
AC 85 ... 265 V
2.5 W @ rated torque
0.6 W
5.5 VA
Min. 10 Nm at the rated voltage
150 s / 90°
max. 35 dB (A)
II protective insulation
IP54 in all mounting positions
CE according to 89 / 336 / EEC
CE according to 73 / 23 / EEC
-30 ... +50 °C
Make Belimo (-E3) NM24A-F
Rated voltage:
Functional range:
Power consumption
- Operation:
- idle position
- Dimensioning:
Torque
(rated torque):
Running time:
Sound power level
Protection class:
Protection type:
EMC:
Ambient temperature:
AC 24 V / DC 24 V, 50 / 60 Hz
AC / DC 19.2 ... 28.8 V
- Operating range:
Positional feedback
(Measuring voltage U):
Running time:
Sound power level
Protection class:
Protection type:
EMC:
Ambient temperature:
AC / DC 24 V, 50 / 60 Hz
AC / DC 19.2 ... 28.8 V
2 W @ rated torque
0.4 W
4 VA
Min. 10 Nm at the rated voltage
DC 0 ... 10 V, input resistance typically 100 k
DC 2 ... 10 V
DC 2 ... 10 V, max. 1 mA
150 s / 90°
max. 35 dB (A)
III Safety extra low voltage
IP54 in all mounting positions
CE according to 89 / 336 / EEC
-30 ... +50 °C
1.5 W @ rated torque
0.2 W
3.5 VA
Min. 10 Nm at the rated voltage
150 s / 90°
max. 35 dB (A)
IIl safety extra low voltage
IP54 in all mounting positions
CE according to 89 / 336 / EEC
-30 ... +50 °C
01/17 - 18
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Legend
VZU
VX
vmax
x
y
x+y
xkr
yH
T0
(m3/h) [l/s]
(m³/h) [l/s]
(m/s)
(m)
(m)
(m)
(m)
(m)
(K)
TX (K)
tZU (°C)
tR
(°C)
pt (Pa)
veff (m/s)
vK (m/s)
Astirn (m2)
KF (-)
LWA [dB(A)]

(kg/m3)
i
(-)
TV (-)
RH (mm)
RB (mm)
L
(mm)
H
(mm)
z
(m)
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
Supply air volume
Total air jet volume at point x
Maximum end velocity of jet
Horizontal throw
Vertical throw
horizontal + vertical throw
Critical throw
Maximum penetration in heating mode
Temperature difference between supply air
temperature and room temperature (T0 =
tZU - tR)
Temperature difference at point x
Supply air temperature
Room temperature
Pressure loss
Effective throw velocity
Duct velocity
Face area
Correction factor
A-weighted sound power level
Density
Induction ratio (i = VX / VZU)
Temperature ratio (TV = TX / T0)
Room height
Room width
Length
Height
Minimum clearance between two grilles x
(m) x 0.2
01/17 - 19
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Order details
Long throw nozzle grille
type WGA
Installation in
walls / ducts
Installation in
round ductwork
with
fixed
nozzles
with individually
adjustable
nozzles
-
-V
with jointly
manually
adjustable
nozzles
-VG-M
Height
125
225
with
fixed
nozzles
with individually
adjustable
nozzles
-R
-R-V
Height
325
125
with jointly
manually
adjustable
nozzles
-R-VG-M
Height
225
115
215
Length
325
425
525
625
Accessories:
825
1025
1225 (not possible for model ...-VG-...)
with plenum box
-ASK
with hit-and-miss damper
-SS-K
(not for use with SS-K)
(not for use with ASK)
with throttle damper
-DK
with ball-impact guard
-BS
without throttle damper
-
with rubber lip seal
-GD
without rubber lip seal
-
without
with
with
insulation
-
internal insulation
-Ii
external insulation
-Ia
with electric actuator
(only WGA-VG, WGA-VG-R)
3-point activation
230 V AC
Actuator signal Y, DC 0-10 V
24 V AC (standard)
-E2
-E1
3-point activation
24 V AC
-E3
Order example:
WGA-225×325-BS
Unless stated otherwise, the thick-frame model will be delivered!
01/17 - 20
Construction subject to change.
Version: 11.06.2012
No return possible!
Long Throw Nozzle Grille Model WGA
Specification texts
Accessories:
Long throw nozzle grille type WGA particularly suitable for airconditioning of high and large rooms such as multi-purpose
halls. High-induction supply air intake through several nozzles
of high throw speeds at low sound power level, to achieve long
throws and efficient throw pattern through optimum nozzle
shape. High flexibility through a wide range of installation options, for example in walls, ceilings, plenum boxes and ducts.
Cooling and heating modes are possible. Suitable for use in
100% to 40% VAV systems. Housing consisting of sheet steel
painted with a high-quality powder coating to a RAL color (RAL
9010 (white) or RAL 9005 (black), standard). Fixed nozzles
made of plastic, similar to RAL colour 9010 (white) or RAL 9005
(black) With visible screw fixing.
Product: SCHAKO type WGA
- Installation in walls, ceilings, plenum boxes and ducts, with
individually manually adjustable nozzles, pivoting range 45°,
without change in the sound power level and pressure loss
upon adjustment.
Product: SCHAKO type WGA-V
- Installation in walls, ceilings, plenum boxes and ducts, with
jointly manually adjustable nozzles, pivoting range 34°, without change in the sound power level and pressure loss upon
adjustment.
Product: SCHAKO type WGA-VG-M
- Installation in walls, ceilings, plenum boxes and ducts, with
jointly motor-adjustable nozzles, pivoting range 34°, without
change in the sound power level and pressure loss upon adjustment.
Product: SCHAKO type WGA-VG-E
- Installation in round ducts, with fixed nozzles.
Product: SCHAKO type WGA-R
- Installation in round ductwork, with individually manually adjustable nozzles, pivoting range 45°, without change in the
sound power level and pressure loss upon adjustment.
Product: SCHAKO type WGA-R-V
- Installation in round ductwork, with jointly manually adjustable nozzles, pivoting range 34°, without change in the sound
power level and pressure loss upon adjustment.
Product: SCHAKO type WGA-R-VG-M
- Installation in round ductwork, with jointly motor-adjustable
nozzles, pivoting range 34°, without change in the sound
power level and pressure loss upon adjustment.
Product: SCHAKO type WGA-R-VG-E
- with ball-impact guard (-BS), integrated into the housing
made of profiled steel (powder-coated in the same colour as
the housing)
- with hit-and-miss damper (-SS-K) for volumetric flow adjustment, adjustable on room side, made of electrolytically galvanised sheet steel.
- with plenum box made of galvanised sheet steel with lateral
connection pipe (not available for long throw nozzle grilles
with hit-and-miss damper type SS-K or motor adjustment).
- with throttle damper (-DK) in plenum box, adjustable from
below, for simple air volume regulation without dismounting the grille.
- with rubber lip seal (-GD), on plenum box, made of special
rubber.
- with thermal insulation
- internal (-li)
- external (-la)
- with electric actuator
(only available with WGA-VG / WGA-VG-R)
- 3-point activation (-E1) 230 V AC
- Actuator signal Y, 24 V AC, 0-10 V DC (-E2) (standard)
- 3-point activation (-E3) 24 V AC.
01/17 - 21
Construction subject to change.
Version: 11.06.2012
No return possible!