The instrument is equipped with three workstations. The test performed with this instrument it is performed by placing the sample into the compartment (250 mm x 250 mm x 220 mm) and then fixed between the upper flange and the lower gasket that delimits the test area. Subsequently, pressurized water is injected on the area test of ​​diameter 100 for a given time. A high-precision valve controls the pressure displayed by the pressure gauge. The structure has 3 samples to be tested simultaneously. All parts in contact with water are in stainless steel. On the front of the machine there are the taps (input-output) and the top panel 3 graduated burettes for measuring the volume of water. The test is positive when the water is not absorbed by the product in question; in this case the volume of water contained in the burette will remain constant. Otherwise, you will notice a decrease in volume in the burette. This means that the sample has absorbed water.

The main building features are:

  • Compact design;
  • Threaded rods to fix the specimens. These elements ensure a perfect fixing to the test bench;
  • Rust-resistant material on the parts in contact with water;
  • Bindrails stainless steel;
  • Mounting plate in stainless steel;
  • Stainless steel water collector;
  • A simple check for each test unit;
  • Check valve with 2 positions to streamline the operation;
  • Separate circuits for every three specimen positions, adjustable with a precision valve and pressure gauge suitable for calibration;
  • Seal to ensure the test positions are airtight.

Size: 1500 x 1600 x 530 mm;

Weight: about 150 Kg, more accessories for cylindrical specimens measuring from 0 to 150, 100 and 75 mm.


Instrument used to assess the impermeability degree of the tested material.Instrument used to assess the impermeability degree of the tested material.