| Product Description
Aperture Air Valve is an innovative airflow regulation device designed using bionic principles. Its working mechanism is similar to a camera aperture—it forms an adjustable orifice by coordinating multiple evenly spaced circumferential blades, enabling fine-tuned airflow control. Compared to traditional butterfly valves or opposed-blade dampers, Aperture Air Valve offers significant advantages such as high adjustment precision, low air resistance, and a linear relationship between opening degree and flow rate. Manufactured from high-quality engineering plastics, it is widely used in fresh air systems, ventilation for equipment rooms and server rooms, purification, and laboratory systems, providing users with precise, stable, and reliable airflow control solutions.
| Product Features
● Precision Adjustment, Linear Output: Employs a multi-blade linkage mechanism driven by an adjustment ring, achieving stepless adjustment of the orifice from fully open to fully closed. The opening degree maintains an excellent linear relationship with flow rate, solving the pain points of traditional dampers, such as "inaccurate adjustment and limited settings."
● Minimal Air Resistance, Energy Efficient: In the fully open state, the blades retract completely, creating an almost unobstructed orifice. Airflow resistance is significantly lower than traditional butterfly valves or opposed-blade dampers. Test data shows a system pressure drop reduction of over 30% at the same airflow rate, effectively improving the effective air delivery rate of fresh air systems.
● Compact Structure, Flexible Installation: Compared to traditional regulating valves, Aperture Air Valve has a shorter axial length and lighter weight, facilitating installation in tight spaces. Available in various interface forms (round, square) to adapt to PE pipes, distributors, and other accessories.
● Visual Indicator, Easy Adjustment: The valve body features a side-mounted dial for clear opening degree indication. Optional manual dial adjustment (no tools required) is available to meet different scenario needs.
I Technical Specifications
Parameter Item | Specification |
Product Material | Virgin ABS |
Production Process | Ultrasonic Welding, No Adhesive |
Applicable Pipe Diameter | DN75, DN90, DN110 |
Connection Method | Socket-type, with Gasket |
Adjustment Method | Manual Dial, 10-position Adjustment |
Opening Degree Indicator | Dial clearly indicates current position; larger number = larger opening |
Opening Range | 33%~100% (Minimum opening corresponds to 33%) |
Operating Temperature | -20°C ~ 80°C |
Application Scenario | Branch Regulation for Fresh Air Systems, Adapts to Whole-House Fresh Air Systems |
| Product Specification
Type | Size | ||
Aperture Air Valve – Sheet Metal Distributor Use | DN75 | DN80 | DN110 |
Aperture Air Valve – ABS Distributor Use | DN75 | DN80 | |
| Application
● Precise Branch Regulation in Fresh Air Systems: Installed on the supply branch ducts for each room, achieving balanced airflow throughout the house via precise adjustment of each branch, ensuring each room meets the designed fresh air volume.
● Equipment Heat Dissipation, Micro Ventilation: For cabinets, electrical cabinets, and small equipment rooms requiring continuous micro-convective heat dissipation ventilation without frequent on/off cycling.
● Purification and Laboratory System Regulation: Auxiliary air outlets in cleanrooms, static pressure regulation in clean corridors; bypass/make-up air for small laboratory fume hoods.
I Comparison with Traditional Dampers
Comparison Aspect | Iris Damper | Traditional Butterfly Valve | Opposed-Blade Damper |
Adjustment Precision | High, good linearity, stepless adjustment | Medium, difficult to adjust at small openings | Medium, blade linkage has play |
Fully Open Resistance | Extremely low, blades fully retracted | Relatively high, valve disc remains in flow path | Medium, blade thickness creates resistance |
Installation Length | Short, compact structure | Medium | Long, requires more installation space |
Long-term Stability | High, stable blade linkage structure | Medium, valve shaft prone to loosening | Medium, linkage mechanism prone to wear |
I FAQ
1. How does Aperture Air Valve work?
Aperture Air Valve's working principle is inspired by a camera's iris diaphragm. Inside the valve body, there is a rotatable adjustment ring and multiple circumferentially evenly spaced blades. The middle of each blade is hinged to an arc-shaped guide slot on the adjustment ring, and the outer end is hinged to the valve body. When the adjustment ring is turned, the arc-shaped guide slots drive all blades to move synchronously. Their inner ends collectively form a circular orifice of variable size, changing the airflow passage area to regulate air volume.
2. What are the advantages of Aperture Air Valve compared to traditional butterfly valves?
The core advantages of Aperture Air Valve are high adjustment precision, low resistance, and good linearity. Traditional butterfly valves are difficult to adjust at small openings, and even when fully open, the valve disc still occupies space in the flow path, creating significant resistance. Aperture Air Valve's blades retract completely when fully open, leaving the flow path unobstructed. During adjustment, the opening degree maintains an excellent linear relationship with flow rate, enabling precise control.
3. How to choose the appropriate Aperture Air Valve specification?
The selection of an Iris Damper is mainly based on pipe diameter size and design airflow. Standard specifications match common fresh air pipe diameters (e.g., DN75, DN90, DN110). The recommended airflow range can be referenced in the technical parameter table. Avoid long-term operation at high air velocities (suggested velocity ≤5 m/s) to prevent excessive noise and resistance.
