china suppliers aluminum waterproof air vent louver

10-99 Pieces
100-999 Pieces
1000-4999 Pieces
>=5000 Pieces
Min. Order
10 Pieces
Company Information

Yingde Ventech Air Conditioning Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
4 Years Paid Supplier Gold Supplier Onsite Check
Learn More

Quick Details

Payment Terms: L/C,T/T,china suppliers aluminum waterproof air vent louver
Supply Ability: 300000 Piece/Pieces per Month china suppliers aluminum waterproof air vent louver
Place of Origin: Guangdong China
Model Number: air vent louver
Type: HVAC Systems
Product name: china suppliers aluminum waterproof air vent louver
Material: aluminum profile
Finish: white powder coating
Color: RAL9003/9010/9016 or anodized
Function: exhaust air
Application: air conditioning ventilation system
Size: 150mm~350mm
Shape: square
Feature: for outdoor air ventilation
Accessories: Air Damper Optional
Delivery Detail: 25~30days
Packaging Detail: 1) 10pcs per carton box. 2) Pallet packing and wooden packing is optional. 3) Carton box could print logo for client.

china suppliers aluminum waterproof air vent louver

Product Description



Product Name:square weather louverModel:WL-VA
Material:aluminum SheetFinish:white powder coating
Color:RAL color and anodized Size:customised sizes
Function:supply and return airApplication:ventilation for air conditioning system
Place of Origin:Guangdong,ChinaFactroy Name:VENTECH,CHINA







Louvres are an essential part of ventilation systems, and are almost always visible from the outside, so why not make them compliment the building?

VENTECH's wheather louvres comprising 38, 50, 75 and 100mm pitches is designed to blend excellent aesthetic qualities with high performance airflow and rain protection capabilities.

Being the smallest format weather louvre available from WL-VA louvres are normally used when hole size is less than 600mm square. This combines with the lightweight, small profile blade to make a louvre which is easy to install and does not place large stresses on its supporting structures.

Suitable for both supply and return applications, WL38 louvres offer good levels of rain protection in almost all weather conditions.



WL-VA Louvres are designed for use in all situations where an external ventilation terminal is required. With a high 50% free area, the same as that shown across the whole range of HVC standard weather louvres, and a unique blade profile designed specifically to prevent the ingress of rain, performance and aesthetics are assured.

We pride ourselves on our ability to manufacture to our customer's specification, whatever that may be. Whether we are asked for a standard square WL38 weather louvre, or a triangular unit painted to a specific RAL colors, we will always deliver.

With WL-VA, options really are optional. You will never be changed for a feature you do not want. That is not to say we do not offer a wide range of options however: Bird and insect mesh is an easily installed option, but can make a huge amount of difference once installed. Also, more complex set ups comprising a WL38 and volume control damper are regularly manufactured. With WL-VA you can be assured of finding exactly what you need.


Correct adjustment requires a length of straight duct, 4 times the duct diameter in front of the plenum box. Between the plenum box and the circular ceiling diffuser there need to be a length of straight duct, 1 times the duct diameter.


Unit Size is determined by duct dimensions. Diffuser necks are undersized to suit ductwork.
Selection Table:


Standard Size (mm)Air Volume (m3/h)Throw Max. (m)



Datas are chosen when the air velocity is 2.4m/s and the velocity at throw distance is 0.5m/s.




Packaging & Shipping


1) 10pcs per carton box.

2) Pallet packing and wooden packing is optional.

3) Carton box could print logo for client.


air diffuser-008.jpg




1) Delivery port: Shenzhen,China

2) Shipped by sea or by air is optional.


Company Information

 Since the day of establishment, VENTECH has built a reputation for going above and beyond to give you the best air you deserve. To us, it's not just about heating and cooling, but providing products you can reply on and service you can trust.


air diffuser-005.jpg


air diffuser-007.jpg


air diffuser-004.jpg




 Q: Are you a manufacturer for ?
A: Yes, we are a professional manufacturer, and we have more than 15 years manufacturing and overseas sales experiences. Now we've sold our HVAC system air supply return ceiling diffuser to more than 26 countries!!!

Q: What's the MOQ of ?
A: The MOQ is 5000usd per order. Mixed supply ceiling diffuser is allowed.

Q: Can you provide free sample of ?
A: Yes, we could provide free sample of supply ceiling diffuser. But we don't pay for the delivery cost.

Q: What's the delivery time of ?
A: the delivery time is about 30days.

Q: what's the payment term of ?
A: T/T, L/C

Q: Can we buy under our own logo for ?
A: No problem.

Q: What is the quality of your ?
A: we offer high quality products. VENTECH is famous for it's high quality and most competitive price!

Q: Can I be a VENTECH brand distributor for ?
A: Yes, you can. Pls contact us for more details.


air diffuser-003.jpg