【Scope of application】

The vertical permeability tester for geotextiles is a horizontal constant head tester designed and manufactured in accordance with the requirements of the national standard GB/T15789-2005 and the new release department of the Ministry of Communications of the "Highway Engineering Geosynthetics Test Regulation JTG E50-2006". It is suitable for Various geotextiles and composite fabrics with water permeability are tested for vertical permeability under constant water head.

【Related standards】

GB/T15789-2005 Method A JTG E50-2006 T114-2006 Vertical performance test (constant head method)

【Principle Overview】

The velocity of water flowing perpendicular to the plane of the geotextile under the unit hydraulic gradient (mm/s)

【technical parameter】

1. The maximum head difference: 250mm

2. The inner diameter of the holder: 50.5mm

3. The thickness of the testable sample: 0.1～20mm

4. Thermometer range: 0-100℃±0.1℃

5. Time controller: 0-999.9 seconds can be set arbitrarily, with a control accuracy of 0.1S

6. Water head measurement accuracy: 0.2 mm

7. Dimensions: 750×700×1900mm

8. Weight: 80kg