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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.
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.
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
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.
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 | 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 | 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 |
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