Features:
●Available in 8", 10", 12", and 14" diameters
●Optional Heresite@ coating
●Material:Aluminum ally with anti-corrosion coating, highly resistant to corrosion. Or SS316 stainless steel
●Reliable quality and easy installation
●Available in constant airflow (preset) and quick-adjust models
●Fully pressure-independent operation
●Factory airflow calibration
●Field-adjustable
●Low pressure drop
●Can be combined for applications requiring large airflow volumes
●No routine maintenance required
●Calibrated for either vertical or horizontal installation
●Low-noise design, meeting or exceeding ASHRAE (ANSI) noise criteria
Technical Specifications
●Aluminum Casing Thickness: 1.52 mm
●Stainless Steel Casing Thickness: 1.02 mm
●Accuracy: +5% or +17 CMH (whichever is greater)
●Self-operated ,no external power supply request
●Air volume range: 65-16,000 CMH
●No additional straight pipe sections are required before and after the valve
●Stable Airflow: Unaffected by duct pressure changes; equipped with 2.5s fast actuator.
●High Turndown Ratio: Up to 16:1; supports horizontal or vertical installation
●Internal Component Materials: Shaft and support frame made of stainless steel; bearings made of Teflon@
●Operating Temperature Range: 32°F to 125°F (0°C to 50°C)
●Operating Humidity Range: 10% to 90% RH, non-condensing
●Fire/Smoke Rating: 25/50
●Density: 2 lb/3 ft (32 kg/m2)
Product Specification
| Product Name | VAF Venturi Valve (Variable Air Flow Venturi Valve) |
| Model / Type | Standard Inline VAF / Custom Size Available |
| Material | Galvanized Steel / Optional Stainless Steel |
| Size / Nominal Diameter | 8" (200 mm), 10" (250 mm);12" (300 mm), 14" (350 mm), Custom Sizes Available |
| Airflow Range | Depends on valve size and system requirements |
| Installation Method |
-Inline installation in ductwork- Ensure airflow direction matches arow on valve body - Flanged or spigot connection, secured with bolts or clamps - Maintain 3-5xD straight duct length upstream and downstream for accurate measurement - Can be installed horizontally or vertically- Allow clearance for maintenance and adjustment |
| Function |
- Variable airflow control- Maintain constant flow despite pressure changes - Reduce pressure loss compared to standard dampers |
| Application | Cleanroom FFU systems, HVAC duct branches, VAV systems, precision airflow control |
| Features / Notes |
- Compact design, easy to maintain - Accurate flow regulation- Suitable for high-precision airflow systems - Optional coating or finish per project requirement |