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Aralco

Aralco SVEA Trickle Vent
   

The Aralco SVEA Slot Ventilation System can be surface mounted on all types of windows and is available in any size and finish for slot heights up to 16mm.

The hood offers weather protection and is available with fly screen apertures of either 3 x 4 mm or 6 x 8 mm.

The vent allows for upward ventilation which avoids undue draught.

For domestic fuel burning appliances a special hood (6 x 8 mm apertures mesh) is designed to be surface mounted upside down to provide upward deflected air for permanent ventilation (See drawings below)

Technical information, drawings and specifications are available upon request or via download from www.aralco.be
Aralco Trickle Vent EA

Document F - Introducing EA

   

The Aralco strong performing aluminium trickle vents have been especially developed to meet the requirements of Approved Document F - Means of Ventilation (April 2006 UK).

The Part F (UK) document typically requires 2500 Equivalent Area (EA) for kitchens, utility rooms and bathrooms and 5000 EA for habitable rooms (depending on the ventilation system applied).

EA better reflects the volume of air that will flow through an opening for a given pressure difference.

Trickle vents also need to be controllable and the EA should be clearly marked on the vent

Gas ventilation applications still use "Free Area" (FA).

 

Aralco Trickle Vent EA

 

Aralco Trickle Vent EA

Equivalent Area (EA) 2500mm2

Airflow at 1 Pa is 2.3m3 / h *, Airflow at 2 Pa is 3.3m3 / h *,
Airflow at 4 Pa is 4.7m3 / h *, Airflow at 6 Pa is 5.7m3 / h *

Slot
Height

Slot
Width
Number
of Slots
Number
of Bridges
Width
of Bridge

Recommended
Length of Slotvent
16 mm
185 mm
1
0
0 mm
230 mm
15 mm
190 mm
1
0
0 mm
230 mm
14 mm
200 mm
1
0
0 mm
300 mm
13 mm
210 mm
1
0
0 mm
300 mm
12 mm
230 mm
1
0
0 mm
300 mm
11 mm
250 mm
1
0
0 mm
300 mm
10 mm
260 mm
1
0
0 mm
300 mm

 

Equivalent Area (EA) 5000mm2

Airflow at 1 Pa is 4.6m3 / h *, Airflow at 2 Pa is 6.5 m3 / h *
Airflow at 4 Pa is 9.1 m3 / h *, Airflow at 6 Pa is 11.2 m3 / h *

Slot
Height
Slot
Width
Number
of slots
Number
of bridges
Width
of Bridge
Recommended Length of Slotvent
16 mm
370 mm
1
0
0 mm
425 mm
15 mm
380 mm
1
0
0 mm
425 mm
14 mm
200 mm
2
1
15 mm
555 mm
13 mm
210 mm
2
1
15 mm
555 mm
12 mm
230 mm
2
1
15 mm
555 mm
11 mm
250 mm
2
1
15 mm
555 mm

* 10% tolerance included
* Test reports on request

 

Free area (FA) Characteristics
(For UK: applicable for permanent gas vents)

Slot
Height
Routing
Details
3000 mm2
4000 mm2
6000 mm2
6500 mm2
8000 mm2
10 mm
Vent length
330 mm
455 mm
645 mm
695 mm
875 mm
Slot width
300 mm
200 mm
300 mm
325 mm
267 mm
No of slots
1
2
2
2
2
No of bridges
0
1
1
1
2
Bridge width
0
15 mm
15 mm
15 mm
15 mm
11 mm
Vent length
305 mm
415 mm
605 mm
640 mm
785 mm
Slot width
273 mm
180 mm
273 mm
297 mm
364 mm
No of slots
1
2
2
2
2
No of bridges
0
1
1
1
1
Bridge width
0
15 mm
15 mm
15 mm
15 mm
12 mm
Vent length
280 mm
375 mm
555 mm
590 mm
725 mm
Slot width
250 mm
333 mm
250 mm
272 mm
334 mm
No of slots
1
1
2
2
2
No of bridges
0
0
1
1
1
Bridge width
0
0
15 mm
15 mm
15 mm
13 mm
Vent length
260 mm
350 mm
520 mm
545 mm
675 mm
Slot width
231 mm
308 mm
231 mm
250 mm
308 mm
No of slots
1
1
2
2
2
No of bridges
0
0
1
1
1
Bridge width
0
0
15 mm
15 mm
15 mm
14 mm
Vent length
245 mm
330 mm
485 mm
510 mm
630 mm
Slot width
215 mm
286 mm
215 mm
232 mm
286 mm
No of slots
1
1
2
2
2
No of bridges
0
0
1
1
1
Bridge width
0
0
15 mm
15 mm
15 mm
15 mm
Vent length
235 mm
310 mm
455 mm
480 mm
590 mm
Slot width
200 mm
267 mm
200 mm
217 mm
267 mm
No of slots
1
1
2
2
2
No of bridges
0
0
1
1
1
Bridge width
0
0
15 mm
15 mm
15 mm
16 mm
 Vent length
230 mm
290 mm
415 mm
455 mm
555 mm
Slot width
188 mm
250 mm
375 mm
205 mm
250 mm
No of slots
1
1
1
2
2
No of bridges
0
0
0
1
1
Bridge width
0
0
0
15 mm
15 mm

Trickle Vent - Controllable

Controllable

 

Trickle Vent - Permanent (Gas)

Permanent
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