Standards 27: Flanges – Ratings in Classes and Pressure Numbers (PN)
Flanges – Ratings in Classes and Pressure Numbers (PN)
Pressure numbers (PN) compared to flange class designations
Related reading
Series: Piping Standards Series | Previous: Standards 26: Flanges – API vs. ASME/ANSI | Next: Standards 28: ISO – Pipe, Tube and Fittings Standards and Specifications
