Source Factory | Professional Custom Air Filters, Air Dampers, Air Diffusers, and Operating Room Accessories

Technical parameters of square variable air volume valve:
Inner diameter width B | Inner diameter height A | Flange width G |
120 | 120 | 40 |
160 | 120 | 40 |
200 | 120 | 40 |
200 | 160 | 40 |
200 | 200 | 40 |
250 | 120 | 40 |
250 | 160 | 40 |
250 | 200 | 40 |
320 | 120 | 40 |
320 | 160 | 40 |
320 | 200 | 40 |
320 | 250 | 40 |
400 | 200 | 40 |
400 | 250 | 40 |
Technical parameters of circular variable air volume valve:
Pipe diameter | Valve body length | Air volume (m³/h) |
φ100mm | 400mm | 28-283 |
φ125mm | 44-442 | |
φ150mm | 64-636 | |
φ160mm | 72-724 | |
φ200mm | 113-1131 | |
φ250mm | 177-1767 | |
φ300mm | 254-2545 | |
φ315mm | 281-2850 | |
φ350mm | 346-3464 | |
φ400mm | 452-4524 | |
φ450mm | 573-5725 | |
φ500mm | 707-7068 |
In modern ventilation and air conditioning systems, the demand for supply air volume, exhaust air volume and fresh air volume in different areas will change with the number of personnel, usage status, temperature and humidity, air quality or process requirements. If the system maintains a fixed air volume operation for a long time, it will easily cause waste of energy consumption, local air volume imbalance, or reduced indoor comfort.
The variable air volume valve can flexibly adjust the air volume according to actual needs, helping the system achieve on-demand air supply, on-demand air exhaust and precise control. It not only helps to improve the operating efficiency of ventilation systems, but also improves indoor air quality, reduces energy consumption, and meets the different air control requirements of laboratories, hospitals, clean rooms and commercial buildings.
By adjusting the opening of the valve, the air flow in the pipe can be controlled, and it is suitable for air volume adjustment and system balancing of supply, return, exhaust and fresh air systems.
Electric actuators, control modules or air volume sensors can be configured according to project requirements to achieve automatic adjustment, remote control and intelligent system linkage.
Suitable for VAV systems, laboratory exhaust control systems, clean room air supply and exhaust control systems and hospital ventilation systems to meet the dynamic air volume needs of different areas.
You can choose manual control, electric switch control, electric proportional adjustment, 0-10V control, 4-20mA control or other control methods to facilitate access to the building automation system.
By adjusting the air volume of each branch, the problem of uneven air volume distribution can be reduced and the overall operation stability of the ventilation and air conditioning system can be improved.
The valve body has a solid structure and the valve plate opens and closes smoothly. It can adapt to long-term high-frequency operation requirements and is suitable for use in commercial buildings, hospitals, laboratories and industrial places.
It can be made of galvanized steel plate, stainless steel, aluminum alloy, PP or other materials according to the use environment to meet the needs of general ventilation, clean environment or corrosive exhaust system.
The structure is reasonably designed and can be installed in round or square air duct systems, making it easy to install, debug and later maintain on site.
Variable air volume valves are widely used in the following scenarios:
Office building ventilation and air conditioning systems
Commercial building air conditioning systems
Hotels and shopping malls
Hospital ventilation systems
Operating rooms and clean areas
Laboratory exhaust systems
Fume hood exhaust system
Clean room air supply and exhaust system
Pharmaceutical workshop
Electronic factory
Industrial workshop ventilation system
HVAC new construction, renovation and maintenance projects
Mainly used for:
Air conditioning supply air volume adjustment
Fresh air volume adjustment
Exhaust air volume control
Return air volume control
Laboratory safety exhaust management
Fume hood air volume control
Clean room pressure difference and air volume Control
Ventilation control in different areas of the hospital
Building energy-saving ventilation system
Multi-branch ventilation system air volume balance
We support non-standard customization according to customer project needs to meet the actual use requirements of different countries, different engineering systems and different installation environments.
Customizable content includes:
Valve size customization
Round or square structure customization
Set air volume range customization
Customized air volume control accuracy requirements
Select galvanized steel plate, stainless steel, aluminum alloy, PP or other materials
Manual, electric switch or electric adjustment control method
Electric actuator brand and specification selection
0-10V, 4-20mA or other control signal interface
Opening feedback, air volume feedback or status feedback function
Air volume sensor and control module configuration
Flange connection, plug connection or other connection methods
Sealing structure, anti-corrosion structure or insulation structure customization
OEM / ODM production
Processing according to drawings or samples
Whether it is commercial building HVAC systems, hospital clean projects, laboratory exhaust projects, or industrial ventilation systems, we can provide flexible product solutions according to customer needs.
We are familiar with the requirements for air volume adjustment, system balance and automatic control of HVAC systems, laboratory exhaust systems, hospital clean engineering and industrial ventilation systems, and can provide customers with practical and reliable variable air volume valve products.
Can be customized according to customer drawings, air duct size, air volume parameters, control methods, system pressure and installation location, suitable for new projects, renovation projects and equipment procurement.
The product can meet the needs of manual adjustment, electric adjustment, proportional control and building automatic control linkage, and is suitable for ventilation and air conditioning systems of different complexity.
Appropriate materials can be selected according to general ventilation, clean environment, hospital engineering or corrosive exhaust systems to meet the requirements of different projects.
The product can be adjusted in packaging, size, material, connection method, actuator configuration and control signal according to the needs of foreign customers, and supports batch orders and OEM cooperation.
Quality control is carried out from material selection, valve body processing, valve plate assembly, actuator installation, action testing, signal inspection to factory inspection to ensure stable product structure, smooth adjustment and reliable control.
We can quickly provide product solutions and quotations based on the dimensions, pictures, drawings, air volume parameters, control methods or project requirements provided by customers.
If you are looking for a variable air volume valve or HVAC air volume control valve, please contact us to get a quote.
In order to provide you with an accurate solution faster, please provide the following information:
Required valve size
Pipe shape, such as round or square
Set air volume range
System engineering Operating pressure range
Usage scenarios, such as air conditioning supply, laboratory exhaust, clean room supply and exhaust or hospital ventilation
Material requirements, such as galvanized steel plate, stainless steel, aluminum alloy or PP
Control method, such as manual, electric switch type or electric adjustment type
Whether actuator, air volume sensor, signal feedback or remote control is required
Connection method, such as flange connection or plug connection
Purchase quantity
Whether customized drawings or OEM services are required
Destination port or delivery location
We will provide professional suggestions, product solutions and quotations based on your needs.
Looking for a reliable manufacturer of air filtration, air distribution, and cleanroom equipment? We provide high-quality products, competitive factory pricing, and flexible OEM/ODM customization services for global customers, meeting the diverse needs of industrial, medical, cleanroom, and HVAC projects.
Address: No. 458 Jiangping Road, Jingjiang City, Jiangsu Province, China
Payment Terms: L/C, T/T, D/P
International Trade Terms: FOB, CFR, CIF, DAP, EXW
Average Lead Time: Peak season: one month; off season: within 15 working days
Nearest Port: Shanghai
Looking for a reliable supplier of air filtration, air distribution, or cleanroom system products? We provide factory-direct pricing, customized OEM/ODM services, and complete engineering project solution support.
Submit your requirements, and our engineering team will provide a dedicated solution and quotation within 12 hours, including detailed product specifications and delivery lead time.