Highest quality
series CN
The CN series clean-break couplings (dry couplings) have been developed for the safe transfer of large volumes of liquids and gases. As robust disconnect, connect and sealing points, they are used in particular in the chemical industry, with liquid foodstuffs and with a wide range of Group 1 media, such as hydrogen. A secure, splash-free connection is crucial here.
Depending on the technical conditions, the CN series clean-break couplings reliably prevent any media leakage without exception. They also enable controlled coupling even with lines filled and under a residual pressure of up to 8 bar. Taken together, this results in safe, splash-free and trouble-free coupling and uncoupling, even with hose lines filled in this way, thereby enhancing process reliability and ergonomics, for example when loading large volumes.
| Series: | CN |
|---|---|
| Coupling Category: | Single coupling as a screw-type coupling with bayonet lock |
| Valve Technology: | Splash- and drip-free, self-closing check valves in clean-break technology prevening effectfully all fluid leakage during disconnection and any ingress of ambient air during connection |
| Types: | The available types are CN-025, CN-040, CN-050, CN-080 and CN-100 - other types available on request |
| Nominal Sizes: | Available in the nominal diameters NB 25 (1"), NB 40, NB 50 (2"), NB 80, NB 100 (4") - other nominal diameters available on request |
| Pressure Range: | Permissible operating pressures up to 25 bar (when connected and disconnected) - Coupling against residual pressure is possible, depending on the nominal diameter |
| Temperature Range: | -20 °C up to 100 °C / -40 °C up to 200 °C on request |
| Media: | Suitable for a multitude of substances, e.g.
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| Materials: | Pressure-bearing components made from high-quality stainless steel 1.4404 or 1.4571, or equivalent – other materials, such as aluminium, titanium or Hastelloy, are available on request. |
| Design Variants: |
and many other additional features |
| Compliance with standards / Certificates / Attestations: | Manufactured in accordance with the Pressure Equipment Directive 2024/68/EU (PED)
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| Examples of sectors and applications: | Main applications:
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approvals
ADR / RID (Dangerous goods by road and rail)
Air Qualitiy Protection / Clean Air
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our expertise for you
We are happy to offer additional advice tailored to your specific requirements, e.g. in relation to
- Requirements for complete hose & coupling systems
- Accessories such as dust caps or parking stations
- Condition monitoring and status display
- Special certifications such as USP Class VI
- Pulsating pressures
- Increased requirements regarding purity or flow capacity of our quick coupling systems
- Use with non-lubricating or high-viscosity media
- Temperature-sensitive processes
Do you have any questions?
We are happy to help.
Our trained staff will provide you with the best advice. Call us or use our contact form.
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| Mon. – Thu. | from 7:30 h to 16:45 h |
| Fri. | from 7:30 h to 13:45 h |
Our offices are closed on:
- Thu. 24.12.2026 to Sun. 03.01.2027