PN25

PN25

A PN25 flange has a fixed nominal pressure rating of 25 bar (approximately 362 psi).

Unlike the ASME/ASA system, the PN system uses a single pressure class designation that assumes the maximum pressure is at ambient temperature (around 20°C).
The maximum working pressure for a PN25 flange generally decreases if the temperature rises significantly.
 
Maximum Working Pressure for PN25 Flanges
 
Temperature RangePN25 Max Pressure (bar)
Up to 20°C (Ambient) 25 bar
Above 20°C (e.g., 100°C) Pressure derates based on material

For common materials:
  • Steel (Carbon or Stainless): The 25 bar rating is typically maintained across a wide temperature range if the material allows for it.

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Code Description Price Quantity
FL050RFSC-PN40 50MM NB MS RF SCRWD BSPP EN1092-1 PN25-40 FLG
Out of Stock
£79.60 (exc VAT) per EACH
£95.52 (inc VAT)
-
+
FL065RFSC-PN40 65MM NB PN25-40 RF BSPT SCRWD EN1092-1 FLANGE
Out of Stock
£89.80 (exc VAT) per EACH
£107.76 (inc VAT)
-
+
FL080RFSC-PN40 80MM NB MS RF SCRWD BSPP EN1092-1 PN25-40 FLG
Out of Stock
£83.60 (exc VAT) per EACH
£100.32 (inc VAT)
-
+
FL080RFSC-PN40G 80MM NB RF GALV SCD BSPP FN1092-1 PN25-40 FLANGE
Out of Stock
£211.50 (exc VAT) per EACH
£253.80 (inc VAT)
-
+