Standpipe Piezometer


Australia Tel: +61 (0)3 8720 6700
Indonesia Tel: +62 21 2278 3377
New Zealand Tel: +64 (0)7 850 2610
South Africa Tel: +27 (0)10 900 2055

Description

Standpipe Piezometer

The Standpipe Piezometer has a perforated PVC body containing a 75-micron filter element. It allows levelling and sampling of groundwater and in-situ permeability testing. Upgrading with a diaphragm type piezometer (Model 1100 or Model 1200) is possible at a different stage.

A large number of uniform pores permit high permeability in a short length. To get the same open area as a 300mm length of plastic filter material. One would need 7m of a standard 25mm slotted pipe.

Drive-in models available (Model 1050).

Application

  • Monitoring of pore pressures in dams and embankments
  • Slope stability analysis
  • Leachate extraction
  • Groundwater sampling and monitoring
  • Dewatering and drainage operations

Features

  • Protected filter element
  • Uniform filter porosity
  • Smooth filter element resists clogging
  • May be cleaned by backflushing
  • Excellent chemical resistance
  • Drive-In models available (galvanised steel)

Specifications

  • Permeability: 3 x 10-4 m/s (low air entry)
  • Pore diameter: 70 micron
  • Filter area: 245 cm2
  • Dimension (PVC): 33.4 mm x 354 mm long
  • Dimension (galvanised steel): 33.8 mm x 370 mm long
  • Weight (PVC): 0.14 kg
  • Weight (galvanised steel): 1 kg

 

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