Helium leak testing and other Non Destructive Evaluation.

The company is holder of quality system certificate SK13/2028 in accordance with STN EN ISO 9001:2015.

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OUR COMPANY

The company He - TEST s.r.o. was established in 1996.

We are one from a few companies in Slovakia, which can find out the minimal untightness till 1,0 x 10E-13 Pa.m3/s by helium methods and have experiences with tightness check in atomic power plants.

The people working in this company have long- term experience in NDT methods. They gained this experience mainly through the work in Nuclear Power Plants in Jaslovské Bohunice and through inspection works in the other factories in Slovakia as well as abroad.

We are specialised mainly in helium leakage tests- vacuum and overpressure tests that could be implemented in integral and local ways.

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EXPERTISE

All the instruments we own are of PFEIFFER VACUUM. The helium leak detector HLT 560 is the most sophisticated. Using this detector controlled by PC, we are able to detect the leaks up to the level of 1,0 x 10E - 13 Pa.m 3/s.

This instrument works in the range from 1,0 x 10E -1 Pa.m 3/s to 1.0 x 10E -13 Pa.m 3/s.

Hetest Factory Work

EXPERIENCE

Our employees have excellent practical experience with the leak tests of reactors, heat exchangers, storage tanks, condensers, pipelines etc, especially in nuclear industry.

We are also able to perform the helium leak tests of steam turbines(vacuum part) while in operation. We comply with STN,EN and ASME CODE.

WHAT WE DO

The He - TEST's proposal for Non Destructive Evaluation.

  • helium leak tests vacuum and overpressure
  • leak tests - under vacuum, under overpressure, and using vacuum chambers
  • ultrasonic measurement of thickness of steel materials
  • dye penetrant examination of welded joints
  • capillary inspection of welds
  • visual inspection of welded joints
  • elaboration of working procedures for the tests
  • consultary

Our employees regularly take part in conferences, get top NDT certificates, undergo various training sessions and trainings.
The employees of our company have the following valid certificates:


LT/ BC, level 3

LT/ BC, level 2

LT/ B, level 1

VT2; UTT; PT2; RT2; UT2 a MT2

REFERENCIES

With more than 20 years of activity He - TEST enjoy a high technical reputation.

Nuclear Power Plant Jaslovské Bohunice

Helium leaktightness test of hermetic cases for spent fuel. All helium leaktightness tests during outages of individual reactor units. Helium leaktightness test of shipping casks for spent fuel and sprinkler system cooler, etc.

Nuclear Power Plant Mochovce

Helium leaktightness test of refueling pools. Helium leaktightness and other tests during the outage.

Hydroplant Gabčíkovo

Helium leaktightness tests on various plant equipment.

Inmart Martin

Helium leaktightness and other tests on new equipment for the A-1 nuclear power plant decommissioning.

Technos Hronec

Helium leaktightness and other tests on various equipment for the A-1 NPP.

Mostáreň Brezno –MG Stroing

Helium leaktightness test of 131 cases and two new store constructions for spent fuel of the A-1 NPP.

Slovenský plynárenský priemysel, Senica

Helium leaktightness test of shipping cask for a rotor.

Biopo Leopoldov

Helium leaktightness test of storage vessels.

ZTS – VVÚ Košice

Helium leaktightness test of drainage equipment for spent fuel of the A-1 NPP.

SES Tlmače

Helium leaktightness test of the sprinkler system cooler for V1 NPP.

SES-TVP Želiezovce

Vacuum leaktightness test of high-pressure heaters for a French customer.

Rohé Slovensko, Bratislava

Helium leaktightness test of a storage vessel.

Chemolak Smolenice

Leaktightness test of a large storage vessel.

Slovenský hodváb Senica

Helium leaktightness test of reactors No. 1 and 2.

AllDeco Jaslovské Bohunice

Helium leaktightness test of A1 decontamination line.

Duslo Šaľa

Helium leaktightness test of transport piping for acid, etc.

BEST Šaľa

Helium leaktightness test of gas heater, acid cooler E114, etc.

VAPIMK Bratislava

Overpressure leaktightness test of a piping for boat loading in Bratislava port.

S a M a.s. prev. Metalchem, Bratislava

Helium leaktightness test of double shell vessels for a German customer.

SLOVNAFT Bratislava

Helium vacuum leaktightness test of a cold box.

FERMAS, Slovenská Ľupča

Helium leaktightness test of heating snakes for fermentation tanks.

PAROPLYNOVÝ CYKLUS a.s. Bratislava, (work for gas-steam turbine operated by SIEMENS s.r.o., Bratislava).

Helium leaktightness test of steam turbine, valves and flanged connections of the condensate systems.

NAFTA – Gbely a.s., Gbely

Helium leaktightness test of welds on large storage tanks using vaccum chambers.

Nuclear Power Plants Jaslovské Bohunice

Helium leaktightness test of 220 MW steam turbines at V-1 – 4 off with condensers, connection flanges and valves – under operation.

SLOVNAFT a.s., Bratislava

Helium leaktightness test of steam turbine, connection flanges and valves on the vacuum system EA 129 – Ethylen Management.

ČEZ – EME Power Plant Mělník – Czech Republic

Helium leaktightness test of steam 500 MW, 110 MW and 16 MW turbines – condensers, connection flanges and valves.

POTRAVINÁRSKE STROJÁRNE a.s., Svidník (food machinery) Helium leaktightness test of new technological equipment for export.

LARF NOVA s.r.o. Nováky

Helium leaktightness test of double shell vessels for a German customer.

Nuclear Power Plant Paks - Hungary

Helium leaktightness test of condenser tubes.

SE – ENO Power Plant Nováky

Helium leaktightness test of the steam turbine 110 MW – under operation.

DUSLO a.s. Šaľa

Helium leaktightness test of the steam turbine 25 MW – under operation.

IN VEST s.r.o. Šaľa

Helium leaktightness test of double shell vessels for a German customer.

Stroje a mechanizmy, a.s. prev. Metalchem , Bratislava

Helium leaktightness test of double shell vessels for a German customer.

BASF , Ludwigshafen, Germany

Helium leaktightness test of condenser tubes.

EXCON STEEL, Hradec Králové, CZ

Helium leaktightness test of condenser tubes.

ZVU POTEZ, Hradec Králové, CZ

Helium leaktightness test of condenser tubes.

JAVYS a.s. Jaslovské Bohunice

Helium leaktightness test of condenser tubes.

SE – Atómové elektrárne a.s. Mochovce

Helium leaktightness test of condenser tubes.

SES Tlmače a.s. Tlmače

Leaktightness test of condenser tubes.

NSG Technology a.s. Gbely

Leaktightness test of condenser tubes.