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When every microme­tre counts: precision tubes as the back­bone of mod­ern sen­sor and mon­i­tor­ing systems

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1. June 2026

In mod­ern sen­sor and mon­i­tor­ing sys­tems, it is not only the quality of indi­vid­ual com­po­nents that deter­mines performance, but above all how they work togeth­er. This is pre­cise­ly where we at ETHEN Rohre come in. Our precision tubes in sen­sor tech­nol­o­gy ensure that pres­sure con­di­tions are trans­mit­ted sta­bly and measurement sig­nals are relayed with­out dis­tor­tion. This cre­ates a con­tin­u­ous measurement chain that our cus­tomers in the mechan­i­cal engi­neer­ing sec­tor can rely on at all times.

Capillary tubes for the finest tun­ing with­in the system

When it comes to high­ly sensitive appli­ca­tions, capillary tubes come into play in sen­sor sys­tems. With their very small diameters, they enable the pre­cise rout­ing of gas­es and liq­uids with min­i­mal dead vol­ume. This improves response speed and sig­nif­i­cant­ly increas­es measurement accu­ra­cy. Whether in pres­sure measurement lines, sen­sor con­nec­tions or test bench­es, our capillary tubes con­nect com­po­nents in such a way that sys­tems oper­ate sta­bly and reproducibly. 

The added val­ue of this precision is par­tic­u­lar­ly evi­dent in demand­ing sec­tors such as the auto­mo­tive indus­try or in safe­ty-crit­i­cal mon­i­tor­ing sys­tems. Here, tub­ing solu­tions must not only be man­u­fac­tured with precision, but also func­tion reliably under extreme conditions.

Tight tolerances for max­i­mum process reliability

The demands placed on tubes used in measurement and con­trol tech­nol­o­gy are high. Even the slight­est devi­a­tions in the inter­nal or exter­nal diam­e­ter can alter flow char­ac­ter­is­tics and thus affect measurement results. That is why we man­u­fac­ture our precision tubes to the tight­est tolerances and with con­sis­tent­ly repro­ducible quality. Typ­i­cal diameters range from a few mil­lime­tres down to the capillary range. What mat­ters here is not only dimensional accu­ra­cy, but also the sur­face quality on the inside of the tubes. This ensures that flu­ids flow even­ly and that mea­sured val­ues remain sta­ble, even dur­ing dynam­ic processes.

Materials for long-term durability

In addi­tion to geom­e­try, the mate­r­i­al plays a cen­tral role. At ETHEN Rohre, we rely on high-quality stainless steels and spe­cialised alloys that are both cor­ro­sion-resis­tant and mechan­i­cal­ly robust. Our precision tubes for sen­sor tech­nol­o­gy are used, amongst oth­er things, in injec­tion sys­tems, pres­sure measurement appli­ca­tions and in com­po­nents for exhaust and emis­sion con­trol. In mon­i­tor­ing and test­ing sys­tems too, for exam­ple in indus­tri­al or safe­ty-crit­i­cal appli­ca­tions, tubes must with­stand extreme con­di­tions. Tem­per­a­ture fluc­tu­a­tions, pres­sure spikes and vibra­tions are a dai­ly occur­rence here. Our solu­tions are designed to cope with these stress­es reliably and durably.

Expe­ri­ence that makes all the difference

At ETHEN Rohre, precision tubes are more than just a prod­uct. They are a key component of func­tion­ing sys­tems. With our under­stand­ing of appli­ca­tions, our manufacturing exper­tise and our com­mit­ment to quality, we help our cus­tomers design their sen­sor and mon­i­tor­ing sys­tems to be both safe and efficient.

Because, ulti­mate­ly, every detail counts. And that is pre­cise­ly where our strength lies.