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Supply air intake wall vent square diffuser with damper

Supply air intake wall vent square diffuser with damper

Supply air intake wall vent square diffuser with damper

HVAC Systems,Ventilation
1 - 100(Pieces):25(days),>100(Pieces):Negotiable(days)
Sea freight
Graphic customization (Min. Order: 5000 Pieces),Customized packaging (Min. Order: 5000 Pieces),Customized logo (Min. Order: 5000 Pieces)
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Quick Details
Warranty:1 Year
After-sale Service:Free spare parts
Project Solution Capability:total solution for projects
Design Style:Modern
Place of Origin:Guangdong, China
Brand Name:VENTECH
Model Number:SCD-VA
Color:White or anodized
Size:5 standard size other size available
Accessories:Damper ,ClipDamper ,Clip
Payment terms:TT,LC
Video Description

Supply air intake wall vent square diffuser with damper 

Product Description


*Ceiling diffusers direct the air from air conditioning systems into the room. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.


* Square ceiling diffuser is an integrated design ,where the diffuser frame is punched and stamped in one piece with the diffuser core. The diffuser is designed to deliver air equally in all 4 directions .


* 4 way diffuser is usually with damper for supply air .Damper is optional ,it fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.


* SCD-VA,SCD-VB SCD-VC are the three kinds of square air diffusers which the airflow flatly, they are straight-edge diffuser, chamfer-frame diffuser, and new type of emovable diffuser.


* They are mainly used for studios, hospitals, theaters, classrooms, concert halls, libraries, recreation hall, theater lounge, general offices, shops, hotels, restaurants and gymnasium, and so on.

* In order to avoid the noise interference in a variety of environment, except determine the wind speed by the neck according to performance table, it should consider the installing height and surroundings.


Material :Aluminium
Function: Supply and Return Air
Shape:Square Type
Size: 150x150, 225x225,300x300,375x375, 450x450, 525x525. Other sizes available
Colour : RAL9010,RAL9016,RAL9003,Anodized
Installation: Ceiling
Features: Decorate, Adjustable ,Durable
Accessories; OBD,Clip,Fasten Rope
Package : Inner PVC wrap with protection, outer with strong carton box
Delivery time :30 days









* Square diffuser frames are make of high quality extruded profile, 1.0mm thickness.

Removable core for better installation and maintenance.

* Blades are make of aluminium sheet by one piece stamping or by welding.

* Core is removable to allow for better installation and maintenance.

The standard nominal sizes are 150x150, 225x225, 300x300, 375x375, 450x450.

* For supply and extract air.

* For all types of ceiling systems.

* For a rapid reduction of the temperature difference and airflow velocity.

* Opppsed Blade damper optional,Plenum box optional.



Colour :


* White: RAL 9010, RAL9016,RAL9003

* Anodized

* Black

* Other size is available





1 way ,2 way 3 way and 4 way air flow



Standard size HXL (mm) Air Volume (m3/h) Throw Max (m)
150x150 120 0.90
225x225 240 1.40
300x300 400 1.70
375x375 600 2.00
450x450 840 2.40
525x525 1120 2.55
600x600 1460 2.70
Datas are chosen when the air velocity is 2.4m/s and the velocity at throw distance is 0.5m/s


Technical data :


Company Information


Our Services



* VENTECH is the leading supplier of air diffusion products in the international market.We dedicated in manufacture and design of air diffusion and ventilation for air conditioning system.


* VENTECH was found in 2006.We have 30000 square meter production area .With about 250 experienced workers.And soon we became a leading air diffuser and grilless manufacturer.


* We concerntration on high quality and competitive price.We have strict qualtiy control process,and every product is hand inspected to ensure it will be in good quality condition.


* VENTECH will work to develop new design and technologies to achieve better product performance,easier to install and higher quanlty year on year .


* VENTECH personnel will always cooperate with the customer to make doing business together and efficient ,fast and pleasant experience .


* VENTECH is you best choice ,we are ready to cooperate with you to provide a comfortable way of handling air.


 Hot selling :





Packaging & Shipping


Packing Details:

*Neutral packing: export standard carton.
*Unit packing: heat-shrink film packing for each product, plastic protect corner is optional.
*All of the productions are inspected carefully by QC before delivery.


Delivery Time:
*Normally 30 days production time after receiving the deposit.
*Urgent orders could be on priority.
Min. Order
*If order based on EXW terms, no MOQ is required.
*If order based on FOB or CNF or CIF terms, there’s MOQ for your options.
*Container orders will have more favorable price.



Q: Are you a manufacturer?
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?
A: The MOQ is 5000usd per order. Mixed supply ceiling diffuser is allowed.

Q: Can you provide free sample?
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?
A: the delivery time is about 30days.

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

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

Q: What is the quality?
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?
A: Yes, you can. Pls contact us for more details.



This product will not pose a threat to human health with quality ensured performance. It will not produce any radiation pollution. Its wipe-clean design makes it suitable for internal use. This product is favored by many of our customers. It is able to keep people comfortable, not stuffy and uncomfortable. Its wipe-clean design makes it suitable for internal use.
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