Paper Title
Methodology for Evaluating the Factors Affecting Sealing Pressure of Tube Fittings and Means to Quantify Them

Abstract
Leakage in fittings is a common mode of failure. Robust design of fittings that accommodates all the factors causing leakage in fitting is necessary. Primarily, leakage in fitting will occur at the sealing location between nut and union. All the factors affecting sealing pressure of fitting are listed and methodology is devised to quantify them and compare it with minimum sealing pressure that avoids leakage. This helps fitting design to make it robust and avoid leakage during its operating life. This paper suggests a methodology and means to quantify these factors and compare it with minimum sealing pressure to avoid leakage. Keywords - Straight fittings, Vibration, Testing, Qualification, Sealing Pressure