Nominal pressure is a reference value for a piping system.
It is specified according to DIN, EN, ISO by the designation PN (pressure nominal) followed by a dimensionless integer indicating the design pressure in bar at room temperature (20 °C).
It is specified according to DIN, EN, ISO by the designation PN (pressure nominal) followed by a dimensionless integer indicating the design pressure in bar at room temperature (20 °C).