Product, subassembly and coupling tightness tests

Subassembly and coupling tightness tests

Objects tested

we conduct tightness tests of elements and couplings (for example: clamp – brake hose) at both low and high pressure.

Pressure range

tests at low pressure are conducted from 0 to 5 bar (other pressure values on request).
tests in high pressure are conducted up to about 200 bar (other pressure values on request).

We can conduct tightness tests with any holding time and at a constant pressure value or with a variable pressure trace.

Temperature range

tests can be conducted at temperatures from -40°C to +180°C.

Available working fluids

brake fluid
hydraulic oil
water
glycol
other media on request.

Product tightness tests

Objects tightness tests after aging tests or from production process concern inflicting the required pressure (or underpressure) on the object, under specified environmental conditions. The object’s medium can be gas (for example air, helium, nitrogen, cooling fluids, etc.) or liquid (water, ethyl glycol, etc.). Entire components, such as, for example heat exchangers, tanks, hoses, specific closed systems, etc. can be subjected to tightness tests.

Equipment

PHOENIX L500i helium leak detector (range: from <5E^-12 to 1000 mbar•l/s)
Agilent 7820A gas chromatograph
ALICAT electric flowmeter (object gas leakage measurement: from 0 to 50 cm³/min)
ball rotameter (object gas leakage measurement: from 0 to 150 cm³/min)
Wika pressure converter (range: from 0 to 400 bar abs.)

Testing norms

PN-EN 60068-2-17

Customer norms

Ford, CEVT, Volvo, VW, Renault, GMW, PSA, Audi, BMW, Daimler, Chrysler, Toyota, Nissan, Honda, Kia, Fiat, Jaguar Land Rover and others.