ZONSKY Ventilation and Rain Resistance Testing Machine for Building Louvers evaluates the water penetration resistance of louvers according to AS4740 standards. This system simulates wind-driven rain conditions and measures how effectively louvers restrict water ingress while maintaining optimal ventilation rates.Talk To Our Team
Equipped with precision airflow sensors, calibrated rain spray mechanisms, and high-resolution data logging, the machine ensures accurate performance metrics. It helps confirm that louvers meet regulatory requirements for both ventilation efficiency and rain defense under various environmental conditions.
This machine is suitable for laboratory testing of ventilation and rainproof performance in building ventilation shutters. Test parameters include:
Ventilation performance
Static rainproof performance
Dynamic rainproof performance
The test focuses solely on the building ventilation shutter specimen and does not assess the connection between the shutter and the enclosure structure.
Compliance
AS4740 Natural Ventilators – Classification and Performance
Louver Rain Resistance Test Apparatus Main Performance Parameters
Category
Details
Equipment Composition
Consists of a wind simulation system, an environmental chamber, a rainwater collection box, and an air flow measurement system.
Wind Simulation System
Air Flow Measurement Box
Installation diameter: 2100 mm; Height: 1100 mm.
Flow Stabilization Device
Three layers of flow stabilization nets with ventilation areas of 60%, 50%, and 45%, respectively. Spacing between each layer: 50 mm. The single-point flow velocity of plane Y is less than 1.25 times the average flow velocity of the plane.
Pressure Difference Measurement
Measurement Instrument
Differential pressure gauge.
Measuring Range
0~500 Pa.
Measuring Accuracy
±1%.
Wind Speed Measurement
Measurement Instrument
Anemometer.
Measuring Error
±2% of the indicated value.
Air Flow Measurement
Measurement Instrument
Mass flow meter.
Measuring Range
0.001~1 m³/s.
Measuring Accuracy
±2.5%.
Temperature Measurement
Measurement Instrument
K-type thermocouple.
Measuring Accuracy
±0.5°C.
Timer
Accuracy: 0.1 s.
Environmental Chamber
Size: 3000 mm × 3000 mm × 2000 mm. The opening side faces the wind simulation system and water spraying device.
Rainwater Collection Box
Size: 1250 mm × 1250 mm × 2000 mm; Equipped with a water baffle.
Spray Spraying Device
Nozzle Type
4 matrix-distributed solid cone nozzles.
Nozzle Spraying Angle
93°~115°.
Water Spraying Pressure
0.03 MPa.
Spraying Volume
≥3.7 L/min.
Spraying System
Computer-controlled; 4 nozzles spray sequentially. Spraying interval can be set arbitrarily from 0 to 99 seconds.
Rain Gauge
Type
Tipping bucket stainless steel rain gauge.
Cylinder Diameter
200 mm.
Resolution
0.2 mm.
Rain Intensity Range
0 mm to 4 mm/min.
Measurement Accuracy
±2% of the indicated value.
System Control Allowable Error
Water Spray Volume
±2%.
Water Collection Volume
±10%.
Ventilation Volume
±5%.
Wind Speed
±10%.
Control System
Composed of a computer, PLC, and module.
ZONSKYmanufactures Louver Rain Resistance Test Apparatus and other fire testing equipment and owns all copyrights of the products.
Louver Rain Resistance Test Apparatus Structural Diagram
