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Enterprise Level Pressure Volume Controller

Product Code : ELDPC

The Enterprise Level Pressure Volume Controller (ELDPC) has been discontinued. Our range is updated from time to time to reflect advances in testing technology and the needs of our customers.

If you're looking for geotechnical testing equipment, our full product range covers triaxial, consolidation, dynamic testing, and more. We'd also be happy to discuss your specific requirements directly.


Discover more pressure and volume controllers equipment for soil testing.

Enterprise Level Pressure Volume Controller
specification datasheet (PDF)
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Tests supported by the Enterprise Level Pressure Volume Controller, pressure and volume controllers equipment for soil testing :-

Constant Head Permeability

The constant head test simply maintains a constant differential in pressure between the top and the base of the specimen (top pressure is always set higher than the base pressure). The flow is then measured on the top controller and the base controller.  Please note: Some apparatus may require additional components or software modules to perform certain tests.

Constant Head Permeability soil test equipment
Constant Pressure Source

All GDS controllers are designed for use as constant pressure sources.  The stepper motor constantly adjusts itself to ensure the desired pressure is maintained, with the additional advantage that volume change is measured to 1 cubic mm* (*except the pneumatic controller which only regulates pressure and has no capability for measuring volume change or flow).

Constant Pressure Source soil test equipment
Constant Rate of Flow Permeability

The constant rate of flow test simply maintains a constant base pressure whilst applying a constant flow through the top of the specimen. A maximum hydraulic gradient can be set which will pause the rate of flow if the pressure differential between the top and the base of the sample gets too large.  Please note: Some apparatus may require additional components or software modules to perform certain tests.

Constant Rate of Flow Permeability soil test equipment
Pore Water Volume Change

Soil testing involves the application of pressure (stress) and the resulting measurement of strain either by measuring displacements or volume change. GDS pressure/volume controllers can apply pressure and measure volume change, or alternatively can apply volume change and measure the resulting pressure. Essential for soil testing.  Please note: Some apparatus may require additional components or software modules to perform certain tests.

Pore Water Volume Change soil test equipment

Standards for the Enterprise Level Pressure Volume Controller, pressure and volume controllers equipment for soil testing :-