A smart reference for European buyers selecting the right PN rating for EN 1092-1 flanges.
📘 What you’ll learn:
- How PN relates to bar/MPa pressure in Europe
- Where PN10, PN16, PN25, PN40, PN63, PN100 are typically used
- Quick selection mistakes to avoid (over/under specification)
- Checklist to request faster compliant quotes
In Europe, PN rating is the universal way to define pressure capacity of EN 1092-1 flanges. PN means Pressure Nominal. Choosing the correct PN class ensures compliance, safety, and cost efficiency.
💡 Did you know?
A PN16 flange is designed for 16 bar (1.6 MPa) at reference temperature.
PN Ratings in EN 1092-1 Flanges
These are the most common PN ratings supplied across Europe:
| PN Rating | Max Pressure | Typical Applications |
|---|---|---|
| PN10 | 10 bar | Water supply, HVAC, low-pressure utilities |
| PN16 | 16 bar | Food, pharma, general industry lines |
| PN25 | 25 bar | Chemical plants, compressed air |
| PN40 | 40 bar | Steam, oil & gas process lines |
| PN63 | 63 bar | Refineries, high-pressure equipment |
| PN100 | 100 bar | Critical duty, offshore platforms |
Quick Selection Tips
- ✅ Match PN to system pressure + temperature, not just pipe size
- 🔍 Check gasket + drilling patterns before upgrading PN
- ⚠ Over-specifying (e.g., PN40 instead of PN16) raises cost 20–40%
- ✍ Always mention PN in your RFQ along with size & material
Looking for certified EN 1092-1 flanges with the right PN?
Get a 24h Quote →Why PN Ratings Matter in EU Audits
Auditors check whether the PN on flanges matches system design. Submitting EN 10204 3.1/3.2 certificates with clear PN marking reduces risk of rejection or rework.
✅ Pro Tip: Add PN, material grade, and certificate type directly in your PO.
This avoids delays and helps you receive correct EN 1092-1 flanges the first time.
Conclusion
Choosing the correct PN ensures safety, compliance, and cost efficiency.
- ✔ PN = Pressure Nominal, Europe’s standard
- ✔ Common PN: 10, 16, 25, 40, 63, 100
- ✔ Request EN 10204 3.1/3.2 for traceability
Ready to order? Visit our EN 1092-1 Europe page or submit a quote request today.
