Meaning of PN and DN in Valves

Meaning Of Pn And Dn In Valve

While working in Mechanical Industry You may have seen in DN and PN number on Glob Valve and Gate Valve In this slide we will learn what this PN and DN represent in Valve.

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Meaning Of Pn In ValveIt Can Handle Pressure up to 16 Bar. If we use low Pressure rating Valve at High Pressure then Valve will Fail.
Meaning Of Dn In Valve

DN represent the nominal diameter. For 1 Inch Valve it is DN 25 for 2 Inch Valve It represent DN 50 and for 3 Inch Valve it represent DN 80.



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Amar Patel
About Amar Patel 138 Articles
Hi, I am Amar Patel from India. Founder, Author and Administrator of I am a Simple Average Man who Loves life and Love living life. Professionally I am a Mechanical Engineer with Solid command over CAD software like FreeCAD, SolidWorks, Autodesk Inventor and AutoCAD Mechanical. I’m here to share my knowledge to help you accomplish your design and engineering tasks quicker and easier. I am Passionate about learning new things especially about Open-Source Software. I love teaching therefore I started my YouTube Channel on FreeCAD and I believe FreeCAD have lots of potential than traditional 3D software. contact me - [email protected]