Why choose an air bag type two-position fixed air volume valve

In ventilation systems of laboratories, hospitals, clean rooms and commercial buildings, the demand for air volume in different areas will change under different usage conditions. For example, laboratories may require different exhaust air volumes under manned operation and unmanned conditions, and clean rooms may also require different air volume modes under normal operation and special working conditions.

The airbag-type double-position fixed air volume valve can not only maintain stable air volume when pressure changes, but also realize switching between two set air volumes, helping the system to meet safety ventilation requirements while reducing unnecessary energy consumption. Compared with ordinary regulating valves, it is more suitable for projects that require stable air volume, automatic balancing and high and low air volume switching.

Main Features

Airbag type automatic adjustment structure

The ventilation section is automatically adjusted through the expansion or contraction of the airbag, which can maintain the stable set air volume within a certain range of pressure changes and reduce the impact of pipeline pressure fluctuations on the air volume.

Double-position air volume switching

Two different air volume states can be set to meet the switching needs between high air volume and low air volume, working state and standby state, normal operation and energy-saving operation.

Good air volume stability

The valve can automatically adjust according to system pressure changes, which helps to maintain stable branch air volume and improve the overall balance effect of the ventilation and air conditioning system.

Conducive to energy-saving operation

It can switch to low air volume operation under low demand conditions, reducing the ineffective ventilation volume of the system and helping to reduce fan energy consumption and operating costs.

Suitable for automatic control systems

The actuator, control interface or signal feedback can be configured according to project requirements to achieve remote control, linkage control or building automation system access.

Suitable for air supply and exhaust systems

It can be used in air-conditioning air supply, fresh air systems, laboratory exhaust, clean room air supply and exhaust, hospital ventilation and industrial ventilation systems, with a wide range of applications.

Compact structure and easy installation

The valve body has a reasonable structure and can be installed in round or square air ducts, making it easy to install, debug and maintain on site.

Flexible material selection

Galvanized steel plate, stainless steel, PP or other materials can be selected according to the use environment to meet the needs of general ventilation, clean environment or corrosive exhaust system.

Typical applications

The airbag type double-position fixed air volume valve is widely used in the following scenarios:

• Laboratory ventilation system

• Chemistry laboratory exhaust system

• Fume hood exhaust system

• Hospital ventilation and air conditioning system

• Operating rooms and clean areas

• Clean room ventilation system

• Pharmaceutical workshop

• Biology laboratory

• Inspection and testing center

• Electronic factory

• Commercial building air conditioning system

• HVAC new construction, renovation and maintenance projects

Mainly used for:

• High and low air volume switching control

• Laboratory manned and unmanned mode exhaust control

• Fume hood branch air volume control

• Clean room air supply and exhaust control

• Ventilation balance in different areas of the hospital

• Fresh air system air volume control

• Air volume control Adjust system branch air volume balance

• Industrial exhaust system air volume control

• Energy-saving ventilation system matching

• Ventilation fields that require stable air volume and two-level control King

Customization capabilities

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

• Two-level air volume range customization

• Customized working pressure range

• Galvanized steel plate, stainless steel, PP or other material selection

• Air supply or exhaust type structure

• Flange connection, plug connection or other connection methods

• Air bag material and structural configuration

• Double-position switching control method customization

• Actuator Structure, control interface or signal feedback configuration

• Inspection opening, sealing strip or matching accessory configuration

• Surface spraying, wire drawing or anti-corrosion treatment

• OEM / ODM production

• Processing according to drawings or samples

Whether it is a laboratory ventilation project, a hospital clean project, or a commercial building HVAC system, we can provide flexible product solutions according to customer needs.

Our advantages

Focus on the manufacturing of ventilation and air conditioning control products

We are familiar with the requirements for air volume stability, system balance, energy-saving control and operational reliability of ventilation systems in laboratories, hospitals, clean rooms and commercial buildings, and can provide customers with practical and reliable double-position fixed air volume valve products.

Support engineering project customization

Can be customized according to customer drawings, air duct size, two-speed air volume parameters, pressure range, control method and installation location, suitable for new projects, renovation projects and equipment procurement.

Stable air volume control

The air bag adjustment structure can automatically adjust when the pressure changes, helping to maintain stable branch air volume and improve system operation effects.

Two-position control is more flexible

The two-speed air volume design can meet the ventilation needs under different operating conditions, and is suitable for systems that require energy-saving operation and working condition switching.

Flexible material selection and wide application range

Appropriate materials can be selected according to general ventilation, clean environment or corrosive exhaust system to meet the needs of different projects.

Suitable for foreign trade export

Products can be adjusted in packaging, size, material, connection method, control method and parameter configuration according to the needs of foreign customers, and support batch orders and OEM cooperation.

Strict quality control

Quality control is carried out from material selection, valve body processing, airbag assembly, sealing inspection, action test to factory inspection to ensure stable product structure, reliable switching, and accurate air volume control.

Respond quickly to customer needs

We can quickly provide product solutions and quotations based on the dimensions, pictures, drawings, two-speed air volume parameters, system pressure or project requirements provided by customers.

Get a quote

If you are looking for a bladder-type two-position fixed air volume valve or an HVAC two-position fixed 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

• Two-level air volume setting range

• System working pressure range

• Usage scenarios, such as laboratory exhaust, clean room air supply, hospital ventilation or commercial air conditioning systems

• Material requirements, such as galvanized steel plate, stainless steel or PP

• Whether an actuator, control interface or signal feedback is required

• Whether there are anti-corrosion, sealing or cleanliness requirements

• 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.