Session
Weekday Poster Session 4
Location
Utah State University, Logan, UT
Abstract
This study explores the hydrostatic behavior and burst pressure behavior of k-port seals (MC252 style, AS5202 fitting), aiming to enhance the understanding of its structural integrity under various conditions. We investigate how factors such as seal size and installation torque influence the seals’ performance. The research involves hydrostatic pressure behavior and burst tests on solution and aged A-286 stainless steel PTFE-coated k-port seals. Additionally, finite element analysis (FEA) was employed to simulate and predict the seals’ performance under different installation forces/torques. All sizes reached an initial burst pressure well above documented guidance for use. It was also observed that the high torque condition -04 seals and all -16 seals exhibited secondary sealing. No liquid leakage was observed at 8,500 or 22,700 psi hold pressures for either size or installation torque. FEA simulations suggested there was a minimum torque needed for high performance sealing and maximum burst pressure, matching physical testing relationships. The predicted burst pressures were often not indicative of those found during physical testing. The predicted pressures were found to mostly be higher than physical testing, most likely due to coefficient of friction estimates. These estimates were found to be within 10-20% of physical testing.
High Pressure Failure of AS5202 Port K-Port Seals
Utah State University, Logan, UT
This study explores the hydrostatic behavior and burst pressure behavior of k-port seals (MC252 style, AS5202 fitting), aiming to enhance the understanding of its structural integrity under various conditions. We investigate how factors such as seal size and installation torque influence the seals’ performance. The research involves hydrostatic pressure behavior and burst tests on solution and aged A-286 stainless steel PTFE-coated k-port seals. Additionally, finite element analysis (FEA) was employed to simulate and predict the seals’ performance under different installation forces/torques. All sizes reached an initial burst pressure well above documented guidance for use. It was also observed that the high torque condition -04 seals and all -16 seals exhibited secondary sealing. No liquid leakage was observed at 8,500 or 22,700 psi hold pressures for either size or installation torque. FEA simulations suggested there was a minimum torque needed for high performance sealing and maximum burst pressure, matching physical testing relationships. The predicted burst pressures were often not indicative of those found during physical testing. The predicted pressures were found to mostly be higher than physical testing, most likely due to coefficient of friction estimates. These estimates were found to be within 10-20% of physical testing.
