Used to determine the permeability of granular, gravel and sandy soils.
The specimen is formed in an acrylic permeability cell and water is passed through it from a constant level tank.
The permeability cell has pressure points at different levels which are connected to the manometer tubes fixed on a stand with graduated scale.
Two Constant Head Permeability Cells are available; ∅ 75 mm and ∅ 114 mm.
Constant head permeability cell ∅ 75 mm, with three pressure take-off points. Formed by an acrylic Plexiglas body held between two aluminum anodized end plates. Supplied with 2 pieces Perforated plates and 2 pieces No.100 screen.
Constant head permeability cell ∅ 114 mm, with six pressure take-off points and an additional six blanked-off pressure points. Formed by an acrylic Plexiglas body held between two aluminum anodized end plates. Supplied with 2 pieces Perforated plates and 2 pieces No.100 screen.
The Stand, comprising 3 pieces ∅ 6 mm x 1 m long Manometer Tubes of constant bore, graduated scale, Rubber Tube and Connectors.
Constant Level Tank, made from acrylic Plexiglas, wall mounting, is used to provide constant water level in the manometer tubes. The inlet, outlet and overflow pipes can be adjusted for height within the tank.
HR-S5800 Model, Supplied complete with Ø 75 mm Constant Head Permeability Cell, Stand with 3 pieces Manometer Tubes, Constant Level Tank, Rubber Tube and 1 m Steel Ruler.
HR-S5810 Model, Supplied complete with ∅ 114 mm Constant Head Permeability Cell, Stand with 3 pieces Manometer Tubes, Constant Level Tank, Rubber Tube and 1 m Steel Ruler.
