GSR Ventiltechnik GmbH & Co. KG What exactly does nominal pressure mean?

The nominal pressure (PN) specifies
the maximum operating pressure a valve can withstand at a reference temperature.
Important to know:
•  The permissible pressure decreases at higher temperatures
•  PN ≠ constant operating pressure under all conditions
👉 Nominal pressure is a guide – not a blanket guarantee.

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