May 2013

Special Report: Maintenance/Reliability

Improve design for pump suction nozzles

Several analysis methods exist to determine the effectiveness of the pump suction piping system’s first adjustable support and how that impacts nozzle loading. Parameters for consideration includ..

Several analysis methods exist to determine the effectiveness of the pump suction piping system’s first adjustable support and how that impacts nozzle loading. Parameters for consideration include how to model the trunnion dummy leg, determining the thermal load for the dummy leg and accurately predicting the first adjustable support base plate’s stiffness. DIAGNOSING THE PROBLEM The pump piping system is a common component of most hydrocarbon processing complexes. It is essential that this system is analyzed correctly, so that future problems can be minimized. Within this system, the first support adjacent to the nozzle plays a vital role during analysis. This support is often a

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