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Water proof 35S

Determination of water limits of fabrics, technical textiles, outdoor, impermeable membrane, tents, elastane, bonded and coated fabrics, military fabrics, coatings, automotive, etc

UNI EN ISO 811:2018, UNI EN 13795-1, UNI 4818, ex-DIN 53886, ex-AFNOR G-07 057, BS 32823, BE EN 3321 3424, AATCC TM 127:08, AATCC TM208, UNI EN 1734:1998, EN13859-1:2005, EN 1928:2000



Chiusura pneumatica - Pneumatic closure
Taratura - Calibration
Manutenzione - Servicing
Riparazione - Repair
Formula vecchio/nuovo - Old/New
Scala 0..20 m.H2O - Range 0..20 m.H2O
Scala 0..50 m.H2O - Range 0..50 m.H2O
BWP4.0 - Application software

Water Proof Branca 35S is the hydrostatic head tester up to 50.000 mmH2O


The testing instrument performs hydrostatic pressure tests on water resistant fabrics up to 50 meters of water column in compliance with Standard ISO 811.

The maximum head pressure determines the waterproof limits of a water resistant material subjected to a constant rate of pressure increase expressed in cmH2O/min.

Test results are saved in cmH2O, mmH2O or mbar (on request) and are defined only after the first three water drops appear on the outer surface of sample under examination according to the Standard UNI, EN, ISO, ASTM, AATCC, etc.

The sample pneumatic clamping is designed to assure the perfect sealing to the specimen reducing to the minimum the presence of water leaks by the side.

Water Proof Branca 35S includes auxiliary test area reductions of 10, 26 and 28 cm2 for AFNOR Standard to be coupled on flanges of 100 cm2 test area.

This testing instrument allows to reach the water proof limits of hydrostatic pressure up to 50 meters of WaterColumn as higher measure range useful for various test methods and designed either for water resistant fabrics or technical textiles or waterproof membranes etc..

The Hydrostatic pressure test with Water proof 35S can be performed on:
  • Technical textiles
  • Sportswear
  • Gore-tex
  • Outdoor
  • Leather
  • Elastam
  • Tents
  • Bonded fabrics
  • Coated fabrics
  • Aerospace
  • Hi-tech membranes
  • Coatings
  • Automotive
  • Fabrics in general
  • Others


HMI touch screen 7" is a useful user interface for all end users who has to manage the apparel during test performances also through a remote control.

The easy user interface of Water Proof 35S includes quick settings menu, trend graphic design to test monitor in real time and other function commands usable during test performances.
Its storage memory allows the operator to collect result values up to a maximum of 20 savings listing an overall report of statistical evaluations as Min, Max, AV%, ST.Dev%, CV%, etc. and the generation of trend graphs.

Certificate The certificate of Water Proof Branca 35S is released on request and issued from Accreditated Enties as ACCREDIA, ENAC, UKAS, TUNAS accreditation bodies.

Water proof Branca 35S is the hydrostatic head tester able to offer a selection of test procedures:

Hydrostatic head testing - DINAMIC

increase of hydrostatic pressure untill reaching the waterproof limits material (3 water drops test);
Hydrostatic head testing - STATIC

24/48 hours keeping hydrostatic pressure stable at a setpoint;
Hydrostatic head testing - PROFILE

hydrostatic pressure test trend with multiple settings configurable by the operator;


ASCII printer BWP35S 1) Built-in ASCII Printer the print out of tests listing report is issued by the ASCII printer.
On test reports input data are reported as indicated below:
  • Company;
  • Address;
  • Country;
  • Operator;
  • Material;
  • Sample Nr.;
  • Supplier;
  • Comments;
  • Test results;
  • User signature;

water-proof-software 2) Application software BWP 4.0 with runtime key license
it allows to evaluate statistical calculations, statistical trend analyses, graphic real-time monitor, data logging settings to store recorded profiles; the app inlcudes the export of CSV files and communicate with the apparel through a USB or ETHERNET slot mounted onboard;

networking csv-export

3) WEBSERVER CSV files export by remote

Ideal for the networking functions between the apparel and server by remote.

networking csv-export

Technical data:


Measure range:0 1 m.H2O (0 100) cm.H2O;
0 10 m.H2O (0 1000) cm.H2O;
0 20 m.H2O (0 2000) cm.H2O;
0 50 m.H2O (0 5000) cm.H2O;
Hydrostatic pressure increase:0 500 cm.H2O/min 0 500 cm.H2O/min
Power supply: 230 VAC - 50/60 Hz
110 VAC - 60 Hz
Dimensions: 540 x 540 x 1700 mm
Net weight: 70 Kg

  • Determination of minimum pressure value that induces the passage of water in three points of sample surface as a result of water proof according to the reference norm;
  • Constant maintaining of a pressure value to the sample for a time up to 24 / 48 hours according to the reference norm;
  • fabrics-hydrostatic-pressure-test
  • HMI-monitor

Ricambi e accessori

Ricambio / accessorio Qta Prezzo
(IVA esclusa)
ALIMRS3524 - Alimentatore (EL) € 19,00 16,15
TRAPR2301 - Trasduttore di pressione 1mH2O - WATER PROOF (RIC) € 360,00 342,00
TRAPR2310 - Trasduttore di pressione 10mH2O - WATER PROOF (10 mH2O) € 430,00 408,50
TRAPR2320 - TRASDUTTORE DI PRESSIONE (20 mH2O) € 430,00 408,50
POMPLCC243S - PROPULSORE H2O (1/2) € 63,00 59,85
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