Galvanized Steel Air Volume Regulating Valve with 280°C Fire Protection and 30mm Flange for HVAC Ducting Systems
Galvanized steel air volume regulating valve designed for central air conditioning, ventilation, and air purification systems in civil buildings and industrial plants. This fire-rated valve regulates air flow in ducting systems and can be used for mixing fresh air and return air in air conditioning applications.
| Parameter | Specification |
|---|---|
| Flange Width | 30mm (all valve sizes) |
| Material | High-quality galvanized steel, riveted by non-rivet method |
| Blade Shaft | Round steel |
| Shaft Sleeve | Brass |
| Surface Treatment | Pickling, phosphating then spraying |
| Temperature Fuse Protector | 280°C activation |
| Control Mechanisms | Manual on/off, temperature control, air regulation, output signal |
| Micro Switch | Contact capacity 380V 3A |
| Connection Port | Contact rating 500V 3A |
| Action Method | Automatic closure at 280°C, manual blade adjustment 0-90° |
| Reset Method | Manual reset |
| Air Leakage | Less than national standards at 300 Pa differential pressure |
- Galvanized steel construction for excellent insulation, fire resistance, and corrosion resistance
- Durable design with long service life
- Easy installation and maintenance
- Flange directly bent from frame for structural integrity
- Customizable valve sizes and colors available
- DC24V power operation for valve closure
Four standardized blade widths with diamond-shaped double blade design. Soft laps between blades ensure excellent hermetic sealing performance.
Valve body frame made from 2mm cold-rolled galvanized sheet with CO₂ gas welding or Q235 plate welding. Blades constructed from 1mm cold-rolled galvanized sheet in corrugated shape.
Manual and electric operation types available in four material options: iron plate, galvanized plate, aluminum alloy plate, and stainless steel plate. All variants share identical body structure and dimensions.
Ideal for ventilation and air-conditioning systems requiring smoke-proofing and fire-proofing capabilities. Particularly suitable for important buildings where manual reset is not feasible.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.