Session: CT-01-01 Design and Analysis of Bolted Flange Joints-1

Paper Number: 120836

120836 - A Comparative Study Between Asme b16.5 and En1092-1 Standard Flanges 

Nowadays, the most extensively used flange standards in the pressure vessels and pipping industry worldwide are ASME B16.5 and EN 1092-1. There has been a lot of hesitation in allowing easy functionality and interchangeability between the two standards because there is little or no information that compare them. The first standard has been in use since its first approval and publication in 1927. While the European standard was approved by CEN in 2001, it is based on DIN flange standard that was adopted in 1928. It is worth conducting a comparative study to help the design engineer comprehend the difference between the two standards in order to make an informed decision regarding the use of these standards in  pressure vessel and piping projects around the world.   

This paper compares the integrity and leak tightness of these two standard flanges and covers the sizes from 15 mm to 600 mm (NPS 0.5 to 24) and all nominal pressures from PN10 to PN400 and classes 150 to 2500. The study compares parameters such as flange rotation, the maximum stresses in the flanges, the gaskets contact stresses, the bolts loads and the level of tightness. The analyses are conducted using the analytical model describe in paper PVP2023-10936 using SA105 and flange materials at room temperature for the bolt-up and pressure conditions.

Presenting Author: Hakim Bouzid Ecole Supérieure de Technologie

Presenting Author Biography: Hakim Bouzid is a full professor at Ecole de Technologie Supérieure of Montreal Canada. He graduated from mechanical engineering Department of Nottingham University, UK, 1981. He holds a master Degree in Tribology from Leeds University, UK in 1982. He has a Ph.D in bolted joints received from École Polytechnique, Montreal, Canada, 1995. He worked in the nuclear industries for 8 years specializing in pressure vessels and piping before joining the Tightness Testing Research Laboratory at Ecole Polytechnique in 1990 as a research scientist. In 2000, he became a professor at Ecole de Technologie Superieure in Montreal. He is currently the director the Static and Dynamic Sealing Laboratory of ÉTS. Prof. Bouzid has authored or co-authored over 200 technical papers on different subjects including stress analysis, bolted joints, valves, polymers and biomechanics.
Dr. Bouzid is a fellow of ASME. He is a member of the Pressure Vessel ad Piping Division Executive committee and a member of the Fellow Review Committee. He served as a member of the Pressure Vessel Research Council, ASME subworking Group on Bolted Flange Connections and PCC-1 and ASTM F03 committee on gaskets.

Authors:

Hakim Bouzid Ecole Supérieure de Technologie
Sofiane Bouzid WSP Global Inc., Montreal, Quebec, Canada