Long Term Flow Test Apparatus
Product Code : JA-GT-9867
The Long Term Flow Test Apparatus (SKU JA-GT-9867) determines the long-term flow capability of a soil and geotextile combination by a soil-fabric permeability test. Where clogging is likely, the filter fabric must be checked under steady and reversing flow, because clogging lowers the flow rate and raises the head loss across the geotextile. Permittivity and transmissivity tests compare fabrics but say little about the soil-fabric system, which this test addresses. It is supplied by JaincoLab for geosynthetics laboratories.
Specifications
The apparatus runs soil-fabric permeability tests over long periods under steady and reversing flow; permeameter size, head range and duration are not listed in the product data and are confirmed on the quotation.
| Product | Long Term Flow Test Apparatus |
| SKU | JA-GT-9867 |
| Test | Long-term soil-fabric permeability |
| Flow conditions | Steady state and reversing flow |
| Indicators | Decrease in flow rate and increase in head loss through the geotextile |
Experiments with the long term flow apparatus
Students run water through a soil layer over a geotextile for an extended period, recording flow and head loss to see whether the filter clogs.
- Long-term clogging resistance of filter fabrics
- Soil-fabric system permeability
- Filter design for drains and embankments
- Comparing geotextiles with a site soil
- Geosynthetics research and teaching
Scope of supply and ordering
This listing covers the long term flow test apparatus as described. Accessories, spares and quantities are confirmed on the quotation. Water supply and head measurement are confirmed on the quotation.
Lead time, MOQ and packing are set on each quotation for the ordered quantity and delivery destination. The Long Term Flow Test Apparatus can be ordered for a single laboratory or as part of a complete laboratory package for a college or training programme.
Frequently asked questions
What does the test show?
The long-term flow capability of a particular soil and geotextile combination.
How is clogging detected?
By a fall in flow rate and a rise in head loss through the geotextile.
Why not use permittivity tests only?
They compare fabrics but do not show how the soil-fabric system behaves.
Related products
- Gradient Ratio Test Apparatus
- Geotextile Permeameter
- Cross Permeability Test Apparatus
- In Plane Permeability Test Apparatus
For a complete geosynthetics laboratory, see the geotextile testing equipment range.
Request a quote
To get a quotation for the Long Term Flow Test Apparatus, send SKU JA-GT-9867, the quantity and the delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.
