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ASTM D4491 Geotextile Water Permeability Tester DW1320

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Geotextile Water Permeability Tester, also named Vertical Permeability Test Apparatus For Geotextile or Water Permeability Test For Geotextile Which is used to measure the water permeability coefficient/hydraulic conductivity of a single layer of geotextile or related product.

astm d 4491Geotextile Water Permeability Tester DW1320 

DW1320 Vertical Permeability Tester for Geotextile is used to determine the water permeability coefficient/hydraulic conductivity of a single layer of geotextile or related product normal to the plane, without load, by the constant head method.

Geotextile Water Permeability Tester complies with ISO 11058-1999, ASTM D4491-Constant head method, GB/T 15789-2005 etc international and retailer standards.

Follows are features of  Geotextile Water Permeability Tester :

  • Transparent construction, convenient to observe whole processes of test;
  • Adjustable water head height;
  • Equipped with water cycling system;
  • Water flow controlled by water pump control system instead of water tap;
  • Timer to time the whole process of test.

Application

Application of Geotextile Water Permeability Tester

Geotextile Water Permeability Tester is used to determine the water permeability coefficient/hydraulic conductivity of a single layer of geotextile or related product normal to the plane, without load, by the constant head method.

Based on the national standard research and development design of the surface water flow of geosynthetic materials. It is suitable for measuring the vertical penetration of all kinds of geotechnical materials.

If you need more information about Water Permeability Testing for Geotextile Machine. Please contact with us

Standard

Standard of Geotextile Water Permeability Tester 

ISO11058:1999 ASTM D4991-Constant head method GB/T 15789-2005

 

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Key specification

Key specification of Geotextile Water Permeability Tester

Test method Constant head test
Inner diameter of clamps Ф52±0.1mm, Ф100±0.1mm
Specimen thickness 0.1~10mm
Range of head loss 0~300mm
Resolution of head loss 1mm
Water supply mode Water tank circulating system
Head stabilization mode Adjusted by variable pump
Power supply AC220V, 50Hz
Dimensions 1,630×580×1,600mm (including water storage tank)
Net weight 147kg

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