Double Stage Exterior Vent Aluminum External Louver

Basic Info

Model NO.	Togen
Specification	louver height: 1055mm
Trademark	Togen
Origin	China
HS Code	73089000
Production Capacity	4500 Meter/Meters Per Day

Product Description

Product Description

Vertical Double Bank Louver VDL150-3

Blade Pack Depth	145mm
Frame Depth	150mm
Pitch	75mm
Visual Impact	Hidden
Free Area	/

Rainwater Penetration

VENTILATION RATE		WATER FLOW RATES		Effectiveness	Class
Volume m³/s	Velocity m/s	Supply l/h	Penetrated l/h
0.00	0.00	97.2	0	100%	A
0.46	0.50	97.2	0	100%	A
0.93	1.00	97.2	0	100%	A
1.39	1.50	97.2	0	100%	A
1.86	2.00	97.2	0	100%	A
2.32	2.50	97.2	0	100%	A
2.79	3.00	97.2	0	100%	A
3.26	3.50	97.2	0	100%	A

Coefficient of Entry

	loure face velocity	air flow rate
louver pd Pascals	m/s	test m³/s	theoretical m³/s	coefficient Ce
10.3	1.10	1.026	3.836	0.268
24.2	1.72	1.596	5.881	0.271
37.5	2.17	2.022	7.320	0.276
52.7	2.57	2.395	8.678	0.276
66.2	2.90	2.693	9.726	0.277
79.9	3.20	2.973	10.685	0.278
95.4	3.47	3.232	11.676	0.277
112.0	3.72	3.459	12.651	0.273
130.0	4.01	3.735	13.630	0.274
143.0	4.27	3.969	14.295	0.278
			mean Ce	0.275
			Class	3

Tested by BSRIA-EN-13030:2001

Design

DesignOur performance louver systems are designed using airflow simulation by CFD(computational fluid dynamics)software to get the best balance between airflow and rain defense performance

Testing

Testing

Weather Louvre: UK BSRIA/US AMCA Testing

The industry standard for weather testing of Louver in the UK was developed by BSRIA(Building Services Research & Information Association) and HEVAC adopted in 2001 as a British & European Standard: BS EN 13030:2001. The principles of EN 13030 are replicated in the USA under the AMCA Standard 500-L, "Laboratory Methods of Testing Louvers for Rating"All of our louver systems have been tested either by BSRIA or by AMCATwo key performance areas:1. Rain Defence ClassificationThe ability to prevent rainwater from penetrating the louver

Class	Effectiveness	Max. allowed rain penetration l/h/m²
1	1 to 0.99	0.75
2	0.989 to 0.95	3.75
3	0.949 to 0.80	15.00
4	Below 0.80	Greater than 15.00

NOTE: Water Penetration Effectiveness is measured for each of eight face velocities between 0m/s and 3.5m/s under fan-driven wind at a speed of 13m/s and water sprayed as rainfall at a rate of 75 l/h conditions.2. Discharge Loss Coefficient ClassificationA high coefficient means low resistance and high airflow performance

Class	Airflow Effectiveness	Performance Rating
1	0.4 to 1	Excellent
2	0.3 to 0.399	Very Good
3	0.2 to 0.299	Good
4	0.199 & below	Fair

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Bird Mesh ScreenNotes:
W--Width of the mesh
D--Diameter of the wire

Regular Size of Insect/Bird Mesh Screen(mm)
Mesh	Width of the mesh	Diameter of the wire
Insect Mesh Screen	1.5*1.5	0.25
	2*2	0.5
	2.5*2.5	0.5
Bird Mesh Screen	5*5	0.8
	10*10	1,1.6
	11.2*11.2	1.6
	12.5*12.5	1.6

Notes:
S--SWD
L--LWD
T--Strand thickness

Bird Mesh Screen(Diamond)
Mesh	Width of the mesh	Stand thickness
Bird Mesh Screen(Diameter)	10*20	1,1.5
	20*40	1,1.5

Packaging & ShippingPackaging & Shipping

Project ReferenceProject Reference

If you are interested in our products or have any questions. Please feel free to contact us!