The pressure plate apparatus is used to determine soil water retention and suctions greater than 0.4 bar. The apparatus consists of strongly built metal chambers containing one or more ceramic plates onto which uniform soil samples are placed. Having attained maximum moisture retention (field capacity) the samples within the cells are then subjected to controlled positive air pressures and water is gradually removed. By careful control of pressure, the various equilibrium conditions of pressure and soil water tension or suction, are obtained. The air pressure is provided either from a compressor, compressed air bottle, or nitrogen bottle; but must always be routed through a manifold having pressure regulators and gauges. This versatile apparatus can be used for a variety of determinations; available water capacity, water retentivity, hydraulic conductivity, and field capacity. Results have a variety of practical applications; soil classification and soil survey, the optimisation of irrigation and drainage in improving crop yields, and the calibration of soil water measuring apparatus for field use.
Required to regulate gas pressure source in pressure plate extraction systems.
3 types available to cover all requirements.
Enables precise control of pressure.
The 532-110 Pressure Control Manifold is designed for regulating and monitoring the pressure supplied to pressure extractors. It is comprised of an air filter, pressure regulators, control valves, and test gauges. Mounted by standoffs to a 19 mm 3/4 thick baseboard suitable for mounting on a laboratory wall. (The Connecting Hose, from the manifold to the compressor is ordered separately).
Precise low-pressure control manifold designed for use with the 532-100 5 Bar Pressure Plate Extractor. Output pressure can be regulated from 3 to 60 psi (0.2 to 4 bars). Double regulation is provided. Readout pressure test gauge is graduated from 0 to 60 psi (0 to 4 bars) in 0.2 psi and 0.02 bar intervals.
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Required to regulate gas pressure source in pressure plate extraction systems.
3 types available to cover all requirements.
Enables precise control of pressure.
Pressure manifolds are an essential component in pressure plate extraction systems. They are required to control the air pressure, from a compressor or compressed air vessel, into the extractor. ELE can supply three different types to cover all requirements;
Low pressure manifold: for 0.5 bar systems.
Low to high pressure manifold: for 1-15 bar systems.
Combination manifold: for both 0-5 & 1-15 bar systems running in parallel.
The combination manifold combines both the low pressure and low to high pressure manifolds.
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This is required to regulate gas pressure source in pressure plate extraction systems.
There are 3 types available to cover all requirements and they enable precise control of pressure.
Pressure manifolds are an essential component in pressure plate extraction systems. They are required to control the air pressure, from a compressor or compressed air vessel, into the extractor. ELE can supply three different types to cover all requirements.
Low pressure manifold: for 0-5 bar systems.
Low to high pressure manifold: for 1-15 bar systems.
Combination manifold: for both 0-5 and 1-15 bar systems running in parallel.
The combination manifold combines both the low pressure and low to high pressure manifolds.
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Used to determine - available water capacity, water retentivity, hydraulic conductivity and field capacity.
Applications include - soil classification and survey, optimisation of irrigation and drainage, calibration of soil water and measuring apparatus for field use.
The pressure plate is used to determine soil water retention and suctions greater than 0.4 bar. The apparatus consists of strongly built metal chambers containing one or more ceramic plates, on to which uniform soil samples are placed. Having attained maximum moisture retention (field capacity) the samples within the cells are then subjected to controlled positive air pressures and water is gradually removed. By careful control of pressure, the various equilibrium conditions of pressure and soil water tension or suction are obtained.
The air pressure is provided either from a compressor, compressed air bottle or nitrogen bottle. The air pressure source must always be routed via a pressure regulation manifold.
ELE can supply three types of pressure plate extraction systems, which cover the pressure range 0-15 bar.
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Developed from a complex mixture of ball clays into a fired ceramic body. Good porosity and good hydrologic flow capability. The material is very hard and brownish-white in colour, is not recommended for fluid sampling. Recommended for specialised applications where the pressure differentials are under 5 Bar (72.5 psi). Typical bubbling pressure: 80 psi. Effective pore size: 0.5 micron. Hydraulic conductivity: .000000121 cm/sec. Approximate porosity: 31% by vol. Flow through.
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Used to determine - available water capacity, water retentivity, hydraulic conductivity and field capacity.
Applications include - soil classification and survey, optimisation of irrigation and drainage, calibration of soil water and measuring apparatus for field use.
The pressure plate is used to determine soil water retention and suctions greater than 0.4 bar. The apparatus consists of strongly built metal chambers containing one or more ceramic plates, on to which uniform soil samples are placed. Having attained maximum moisture retention (field capacity) the samples within the cells are then subjected to controlled positive air pressures and water is gradually removed. By careful control of pressure, the various equilibrium conditions of pressure and soil water tension or suction are obtained.
The air pressure is provided either from a compressor, compressed air bottle or nitrogen bottle. The air pressure source must always be routed via a pressure regulation manifold.
ELE can supply three types of pressure plate extraction systems, which cover the pressure range 0-15 bar.
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Developed from a proprietary mixture of ball clays fired to a ceramic body. Pinkish-tan in colour, moderately hard and will withstand pressure differentials of 15 Bar (217.5 psi). Typical bubbling pressure: 220 psi. Effective pore size: 0.16 micron. Hydraulic conductivity: .00000000259 cm/sec. Approximate porosity: 32% by vol. Flow through.
Diameter: 25.88 cm
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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.
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Ideal for pressure plate extraction systems.
Electrically powered and fully CE accredited
Conforms to EC directive 98/37/CE
This unit provides compressed air for all ELE's pressure plate apparatus. The compressor is designed for sustained, continuous operation and provides up to 20 bar operating pressure.
These compressors are compact and can be transported easily by one person. The compressor consists of motor and block, which is cast in one piece. This improves heat dissipation considerably. Pistons, piston rings, con-rod, bearings and crank flange have been designed with efficiency and durability in mind. Valves in the compressor block are machined in non-corrosive stainless steel and the valve reeds are fitted with heat dissipating lift limiters. This ensures air-tight valves and longer life.
The robust electric motor features strengthened bearings and a generously-sized winding. This lengthens motor life considerably. The motors start without problem even if the supply voltage is low.
Every compressor is filled with special, temperature resistant top performance lubricating fluid. The result is almost no oil carbon deposits on the valves.
This compressor must be used in conjunction with a manifold assembly if intended for use in pressure plate extraction systems.
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Used to calibrate all types of electrical moisture measuring blocks. The Cup Extractors are (83 mm) 3-1/4 inch overall height by (64 mm) 2-1/2 inch outside diameter and will fit into the 532-120 and 532-100 extractors. Inside cup dimensions are (45 mm) 1-3/4 inch diameter by (51 mm) 2 inch deep.
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This stainless steel 1/4 NPT fitting leads through 10 electrical wires (26 AWG), connected to the fitting with epoxy seal. Handles up to 300 PSI.
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