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Torrent Permeability Test
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Torrent Permeability Test


The following standards can be applied to the
permeability tester:


  • SN 505 252/1, Annex E


The permeability of concrete at the surface is a major factor in determining
the durability of concrete structures. A reliable permeability test of the concrete
cover is therefore crucial – not only in the laboratory but also at the building site.
One factor determining the durability of concrete is the ease with which air can
penetrate into concrete.

The permeability test with the Torrent permits a rapid analysis of the air
permeability of the cover concrete by a non destructive method. The essential
features of the permeability test method of the Torrent are a two-chamber
vacuum cell and a pressure regulator which ensures an air flow at right angles
to the surface into the inner chamber. The permeability test with the Torrent
takes only 2 – 12 minutes.

•The data is automatically collected by the Torrente permeability tester
•The quality class of the concrete cover of dry concrete can be read
  from a table using the kT value
•In the case of moist concrete, kT is combined with electrical concrete
  resistance ρ (rho) and the quality class is determined from a nomogram
•Optional resistance Wenner-probe to correct the influence of concrete
  moisture is available with the permeability tester.


Display unit
Memory non-volatile memory for 200 measured objects
Display 128 x 128 graphic LCD
Interface RS 232 or optional adapter to USB
Power supply six 1.5 V, LR 6 (AA) batteries for 60 h operation or optional commercial power unit 9 VDC/0.2A
Temperature range -10 °C to +60 °C
Carrying case 325 x 295 x 105 mm (12.8 x 11.6 x 4.1 in)
Total weight 2.1 kg (4 lb, 10 oz)
Control unit with membrane pressure regulator and pressure sensor
Vacuum connection small flange 16 KF
Carrying case 520 x 370 x 125 mm (205 x 146 x 49 in)
Total weight 6.3 kg (13 lb, 14 oz)
Vacuum Pump
The pump is required for operation. 
Please order pump separately as it is not supplied with the unit of the permeability tester. 
Suction capacity 1.5 m3/h
Final total pressure Approx. 10 mbar


  • Standard 2-year limited warranty on electronic parts of the permeability tester
  • Optional extended warranty periods up to 3 additional years

คู่มือการใช้งาน แคตตาล๊อกสินค้า
Quotation Model. Description
Torrent Permeability Tester complete without vacuum pump

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71/7-8 Kaset - Nawamin Rd. Jarakae Bua, Ladprao Bangkok 10230
Tel : 0-2907-4820 Fax :
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