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Dewatering and groundwater control | Stuart Well Services Ltd

Piezometers

Air Sparging

A piezometer tip containing a porous element is connected via rigid tubing to ground level.
Piezometric pressure at the tip is indicated by the head of water which develops inside the standpipe tubing.

Piezometers

A piezometer tip containing a porous element is connected via rigid tubing to ground level. Piezometric pressure at the tip is indicated by the head of water which develops inside the standpipe tubing. This water level is normally determined by lowering a dipmeter probe from ground level, but remote reading systems can also be supplied.

Tubes & Fittings

Lengths of standpipe tubing are supplied, complete with all necessary connectors. For borehole installations it is normal to use rigid PVC. Piezometer pipe with an internal diameter of 19mm is available in lengths of one and three metre. Each end is threaded .75" MBSP and supplied with one threaded socket for connection. Standpipe 3m GP393P Standpipe 1m GP191P

Piezometer Tips

Porous HDPE or ceramic piezometer elements are available with an average pore diameter of approximately 60 microns and a permeability of approximately 3 x10-4m/sec. The tips are supplied with a .75" BSP threaded connector.

Part Numbers

GP19.3PT - Casagrande Porous Plastic Tips. Porous HDPE element protected by perforated rigid PVC Sleeve. Length 380mm OD 30mm.

GP191FBTP - Casagrande Porous Plastic Tips. Porous HDPE element protected by perforated rigid PVC Sleeve. Length 1000mm OD 30mm.

GP220CT - Casagrande Ceramic Tips. Ceramic element protected by PVC end caps. Length 330mm OD 56mm.

uPVC Piezometers

uPVC Piezometers Length Slot P/N
19mm ID male/female threaded 26.6mm x 3.2mm wt.32mm over socket 3 mtr GP193P
19mm ID male/female threaded 3mtr 1mm GP193S
19mm ID male/female threaded 1 mtr GP191P
19mm ID male/female threaded 1 mtr 1mm GP191S
Plastic piezotip c/w porous element 1 mtr 1mm GP191FBTP
Ceramic Tip 220mm GP220CT
Plastic piezotip c/w porous element 380mm Drilled GP19.3PT
Rubber Methane Head 19mm GP19RBMH
Screw Methane Head - Metal GSMHM
Screw Methane Head - plastic GSMHP
Piezo Push Bottom Male GP19PPF
Piezo Screw In Plug GP195TP
Piezo Screw on Cap GP195BC

Galvanised Piezometers

Galvanised Piezometers Length P/N
3/4" male/male threaded 0.5 mtr GP19.5GS
3/4" male/male threaded 1 mtr GP191GS
Drilled with 8mm holes, 3/4" ID male/male threaded 0.5 mtr GP19.5GS8
Drilled with 8mm holes, 3/4" ID male/male threaded 1 mtr GP191GS8
Drilled with 8mm holes, porous plastic element, 3/4" ID male/male threaded 1 mtr GP191G8P
Drilled with 8mm holes, 3/4" ID male/male threaded 300mm GP19.3GS8
Drilled with 8mm holes, porous plastic element, 3/4" ID male/male threaded 300mm GP19.3G8P
3/4" FBSP galvanised caps 3/4" FBSP galvanised caps GP19GC
Mild steel 3/4" FBSO drive point GP195PDP
Mild steel 3/4" FBSP drive anvil GP195PDA
3/4" FBSP Socket GP19FBS

Accreditations and Associations

ISO-9001 ISO-14001
ISO-22301 ISO-45001
ISO-45001
ISO-45001
ISO-45001
The Temporary Works Forum (TWf)