Pressure plate extractors
A complex mixture of ball clays into a moderately fired ceramic body. Good porosity and good hydrologic flow capability. The material is moderately hard and tannish-white in colour, not recommended for fluid sampling. Recommended for specialised applications where the pressure differentials are under 3 Bars (43.5 psi). Typical bubbling pressure: 46 - 70 psi. Effective pore size: 0.7 microns. Hydraulic conductivity: 0.00000025 cm/sec. Approximate porosity: 34% vol. Flow through.