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Pressure Unit and Class Converter
Enter one pressure and read it in all three units. The two limits that get merged on most enquiries are kept in separate rows: the pressure up to which a coupling can be connected while the circuit is live, and the maximum working pressure the standard permits for couplings built to it.
Enter a value and the conversion appears here.
Reference Limits
| Limit | MPa | bar | psi (converted) |
|---|---|---|---|
| Connect-under-pressure limit, ISO 15171-2 | 40 | 400 | about 5,800 |
| Maximum working pressure permitted by ISO 15171-2 | up to 63 | up to 630 | about 9,140 |
The second figure depends on materials, design, working conditions and application. It is what the standard permits, not a rating carried by every part. Per-model ratings are confirmed on the drawing.
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