January 2013

Fluid Flow

Evaluate pressure relief system forces in existing installations

The purpose of this study is to limit the number of relief valves that require rigorous engineering calculations to determine the adequacy of the installation.

Smith, D., White, J., Smith & Burgess LLC; Frenk, B., Frenk Water Technologies LLC

Pressure relief devices control the amount and disposition of material during a process upset while simultaneously protecting process equipment from damage due to overpressure caused by the upset. The devices most commonly used for these purposes are pressure relief valves (PRVs) and pressure safety valves (PSVs). Quite a bit of engineering research, testing and analysis has been performed to improve assessment of relief valve suitability and the ability of associated installations to protect equipment from overpressure. One area that has less prescriptive requirements is analysis of the structural integrity of the relief device installation during the emergency event. These installations

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