Ventilation Air Vent Exhaust Valve Adjustable Air Nozzle Diffuser Jet Nozzle Diffuser

Product Description

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Air Grilles

Designed to protect duct openings and guide airflow direction. Air grilles serve both supply and return air purposes,providing a finished look while allowing air passage.They are often equipped with adjustable blades,dampers,or eggcrate cores.Airandus offers grilles in multiple formats for walls,ceilings,doors,and ducts.

JNS -Jet Nozzle

Definition: The nozzle and the decorative ring are manufactured in aluminium. Powder-coated surface finish, standard colour RAL9010, 9016. The connection part is made of galvanized steel sheet. Long distance air supply with low noise level. Used in superior places: concert hall, airport, theatre, museum etc. Available in extensive range of size.

Specification

Application Scenarios:

Primarily used for long-distance air supply in large and high areas such as concert halls, ballrooms, shopping malls, airports, theatres, museums, gymnasiums, and other spacious venues. Effectively delivers conditioned air to designated areas, meeting the HVAC requirements of large spaces.

 
Core Materials and Manufacturing
* Nozzle & Decorative Ring: Manufactured in aluminium – lightweight, high strength, and corrosion-resistant.
* Connection Part: Made of galvanized steel sheet, offering good rust resistance and structural strength.
* Surface Finishing: Powder-coated surface finish. Standard colours: RAL 9010 or RAL 9016 (white). The coating provides strong adhesion and a durable, attractive appearance. Custom colours are available upon request.
 
Surface Treatment:
* Spherical Structure: The nozzle is designed as a sphere, allowing the air outlet opening angle to be manually adjusted within a 30-degree range for flexible airflow direction control.
* Removable Lid: The front and back are thoughtfully designed – the lid is easy to disassemble, facilitating convenient cleaning and maintenance.
* Low Noise Design: Optimised airflow path meets higher mute requirements, ensuring quiet operation.
* Decorative Ring: Provides a smooth, aesthetically pleasing transition between the nozzle and the ceiling or duct connection.
* Connection Design: The galvanized steel connection part ensures a secure and firm attachment to round ducts.

Manufacturing Advantages:

* Long-Distance Air Supply: Delivers conditioned air over long distances, ideal for concert halls, ballrooms, shopping malls, and other large, high-ceiling spaces.
* 30° Adjustable Angle: The nozzle can be flexibly adjusted within a 30-degree range to meet different zone air supply requirements.
* Ultra-Low Noise: Optimised design meets higher mute requirements, making it suitable for noise-sensitive environments.
* Easy Maintenance: The lid can be easily removed for convenient internal cleaning of the nozzle.
* Elegant Appearance: Aluminium nozzle with powder-coated finish offers a clean, sophisticated look suitable for premium venues.
* Wide Size Range: Available in sizes from 100mm to 630mm to cover various airflow requirements.

Technical Specifications

(Custom configurations available upon request.)

Specs	D1	D3	D2	D4	L	E	F	G
100	92	148	60	70	85	8	8	6
125	123	170	64	90	80	8	7	8
160	158	210	85	130	98	9	14	8
200	198	255	108	160	112	8	11	12
250	248	301	136	208	143	10	15	13
315	310	380	186	270	160	9	13	29
400	396	467	230	350	182	11	11	55
500	492	598	290	445	230	8	15	65
630	625	700	295	585	295	25	50

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

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FAQ

Q1:  What are the main application scenarios for the Supply Air Nozzle?
A1: This product is specifically designed for large and high-ceiling spaces requiring long-distance air supply, such as concert halls, ballrooms, shopping malls, airports, theatres, museums, and gymnasiums. It effectively delivers conditioned air to designated areas, meeting the HVAC requirements of large spaces.

Q2: Can the air supply direction of the nozzle be adjusted? What is the adjustment range?
A2: Yes. The nozzle features a spherical structure that allows manual adjustment of the air outlet angle within a 30-degree range after installation, enabling flexible control of the airflow direction to meet the air supply requirements of different zones.

Q3: How do I clean and maintain the spherical nozzle?
A3: The product features a removable lid, making maintenance very convenient. For daily cleaning, use a soft cloth or vacuum cleaner on the surface. For deep cleaning, you can easily remove the lid to thoroughly clean the nozzle interior. Cleaning every 3-6 months is recommended.

Q4: What material is the nozzle made of? Can the exterior colour be customised?
A4: The nozzle and decorative ring are made of aluminium, which is lightweight and corrosion-resistant; the connection part is made of galvanized steel sheet. The surface finish is powder-coated, with standard colours RAL 9010 or RAL 9016 (white). Custom colours are available upon request.

Q5: What is the maximum throw distance of this nozzle?
A5: Depending on the model and outlet velocity, the maximum throw distance ranges from 10 to 60 metres. For example, the D1=200mm model has a maximum throw of 12-20 metres, while the large D1=630mm model can reach 40-60 metres, making it ideal for extra-large spaces.

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