Eisele Inoxline: stainless steel couplings for corrosive and hygiene-sensitive applications
Inoxline is Eisele's stainless steel line: couplings machined from solid, corrosion- and acid-resistant stainless steel. Developed for environments where brass falls short: aggressive media, corrosive atmospheres, cleaning processes with caustic or acid, and applications where product residues must have no chance.
The difference from a chrome-plated or surface-treated coupling is fundamental. A coating can be damaged and corrode from the inside; solid stainless steel cannot. The line is based on the design of Eisele's standard pneumatic components, but made entirely of stainless steel.
Working with direct food contact? Then also look at Cleanline, which is specifically designed according to EHEDG guidelines for the food contact zone
Applications
- Chemical and process industry: corrosive media and atmospheres
- Food and pharma production: hygiene-sensitive environments outside the direct contact zone
- Paint lines and surface treatment: proven use in paint environments
- Packaging technology: machines treated with aggressive cleaning agents
- Humid and salty environments: outdoor installations, car washes, maritime
What you can build with this line
Stainless steel push-in fittings: the stainless steel counterpart of the standard pneumatic push-in fittings, in straight and elbow versions. Available with one or two seals, depending on the leak-tightness requirements.
Stainless steel screw fittings: fixed connections in stainless steel, for mechanically loaded connections and larger bores.
Versions with minimal dead zones: couplings whose design avoids seams and cavities as much as possible, so no product residues accumulate. Intended for liquid media and also easy to clean on the inside.
Stainless steel accessories: plugs, feedthroughs and mounting parts in the same material grade, so you do not introduce a weak link in the circuit.
Seal materials
Inoxline is available with a wide choice of seal materials, from Viton and FFKM to FDA-compliant versions. Which seal is suitable depends on your medium, temperature range and any cleaning procedure. State these details in your request and we will advise the right combination.
Technical framework
| Material | Corrosion- and acid-resistant stainless steel |
| Construction | Machined entirely from solid material |
| Media | Compressed air, vacuum, gases, liquids |
| Seals | Viton, FFKM, FDA-compliant versions |
| Connections | G thread, metric thread, NPT |
| Feature | Tight manufacturing tolerances, smooth surfaces |
Wanneer is RVS noodzakelijk?
Stainless steel is not always the better choice; it is the necessary choice under specific circumstances. Consider Inoxline when at least one of these situations applies:
- Het medium is agressief, zuur of basisch
- The installation is periodically cleaned with caustic, acid or steam
- De omgeving is vochtig, zilt of chemisch belast
- Material requirements apply from your customer or industry
- Failure or contamination brings unacceptable costs or risks
If none of these points apply, Basicline in brass is usually sufficient and keeps costs lower. For direct food contact, look at Cleanline.
Frequently asked questions
What is the difference between Inoxline and Cleanline?
Inoxline is the broad stainless steel line, focused on corrosion resistance and good cleanability. Cleanline is specifically designed according to EHEDG guidelines for the direct food contact zone, with polished surfaces and FDA-compliant seals. Werkt u in food of farma met direct productcontact, dan is Cleanline de aangewezen lijn.
Is Inoxline suitable for the food industry?
Inoxline is used in hygiene-sensitive environments and is available with FDA-compliant seals. For the direct food contact zone, we recommend Cleanline. Share your specific requirements with us and together we will determine which line fits.
What is the difference from a nickel-plated brass coupling?
A nickel-plated coupling has a surface layer over brass. If it is damaged, the underlying material will still corrode. Inoxline is solid stainless steel and does not have that risk.
Why are dead zones and seams a problem?
Product residues accumulate in dead zones and seams and are not removed by cleaning. That is why part of the range is designed with minimal dead zones, so the coupling is also easy to clean on the inside.
Can I replace existing brass couplings with Inoxline?
Often yes, provided the threaded connection matches. Inoxline is based on the design of the standard pneumatic components. Send us your current type or a photo of the connection and we will tell you which item fits.
