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Double bank vent exterior aluminium adjustable louver window
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
Product Specifications
--Product Description
Vertical Double Bank Louvre Aluminum Storm Resistant Louvre
Introduction
Vertical Double Bank Louvre 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 I/h | Penetrated I/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
louvre face velocity | air flow rate | ||||
louvre 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
Our performance louver systems are designed using air flow simulation by CFD(computatainal fluid dynamics)software to get best balance between air flow and rain defence performance
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 AMCA
Two key performance areas:
1. Rain Defence Classification
The ability to prevent rain water from penetrating the Louvre
1. Rain Defence Classification
The ability to prevent rain water from penetrating the Louvre
Class | Effectiveness | Max. allowed rain penetration l/h/㎡ |
A | 1 to 0.99 | 0.75 |
B | 0.989 to 0.95 | 3.75 |
C | 0.949 to 0.80 | 15.00 |
D | 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 condition.
2. Discharge Loss Coefficient Classification
A high coefficient means low resistance and high airflow performance
A 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 |
Bird Mesh Screen
Notes:
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
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