Constant Head Permeameter

Constant Head Permeameter – For Granular Soil Permeability Testing

The Constant Head Permeameter is a precision testing apparatus used for determining the permeability of granular and coarse-grained soils such as sands and gravels. It operates on the constant head principle, ideal for soils with high permeability (hydraulic conductivity > 10⁻⁴ cm/s).

This lab-grade instrument provides accurate readings of hydraulic conductivity, enabling engineers and researchers to evaluate groundwater flow, seepage behavior, and soil properties relevant to geotechnical design and environmental studies.

Key Features of Constant Head Permeameter

Transparent Acrylic Cell: Allows clear visual inspection during testing.

Constant Head Reservoir with Single-Tube Manometer: Ensures steady water head for reliable results.

Two Porous Stones: Provided for 2.5″–4.5″ chambers to contain the sample and maintain even flow.

Perforated Plates: Included for larger chambers (6″–9″) to support the soil sample.

Multiple Pressure Take-off Points: Allows for accurate measurement of hydraulic gradient.

Complete with Tubing and Fittings: Ready-to-use system for lab or field testing.

Applications of Constant Head Permeameter

Permeability Testing: Ideal for cohesionless soils like sand and gravel.

Groundwater Flow Analysis: Helps determine flow rate through aquifers and porous media.

Seepage Studies in Dams: Used to assess seepage potential in embankments, earth dams, and similar structures.

Soil Research & Education: Common in geotechnical labs and academic institutions for soil behavior analysis.