Shelby Tube Permeameters

Shelby Tube Permeameter is used to perform constant or falling head hydraulic conductivity tests on undisturbed soil samples in sections of 2, 2.5, or 3in (50.8, 63.5, or 76.2mm) diameter Shelby sampling tubes.

The corrosion-resistant aluminum top and base secure the Shelby tube section vertically using the three threaded tie rods with clamping nuts. Shelby tube sample heights between 2in (51mm) and 6in (152mm) can be performed using the 2, 2.5, and 3in diameter permeameters. The top cap is concave and includes a bleed-off valve to allow for the deairing of the sample.

Each Shelby Tube Permeameter includes an anodized aluminum top and base, inlet and outlet valves, bleed-off valve, two porous stones, O-Rings, three threaded tie rods with clamping nuts, and 10ft (3.0m) of 1/4in ID tubing.

HM-81 is used for testing the permeability of undisturbed soil samples in 3in (76mm) diameter Shelby tubes.

HM-95 is used for testing the permeability of undisturbed soil samples in 2.5in (63.5mm) diameter Shelby tubes

HM-92 is used for testing the permeability of undisturbed soil samples in 2.0in (50.8mm) diameter Shelby tubes

Features:

• Corrosion-resistant, anodized aluminum components
• The concave top plate allows for de-airing
• Designed to maintain the structure and integrity of the sample

Included Items:

• Shelby Tube Permeameter
• (2) Porous Stones
• (2) O-Rings
• 10ft 1/4in ID clear tubing

Accessories:

• HMA-840 Single-Tube Manometer with Constant-Head Reservoir measures head pressures during permeability testing and is required for use. The Manometer features a 1,000mm graduated scale and necessary valves.
• Filter Paper prevents fines from blinding porous stones while testing
• Porous Stones are available for replacement in sizes compatible with each Shelby Tube.

Related blogs:

• Permeability of Soil Test: All You Need To Know