Learn more about PASS/START-PROF Pipe Stress Analysis Software
PASS/START-PROF provides multiple methods for pump nozzle load verification:
API 610 / ISO 13709 / GOST 32601-2013
Kellogg (L.C. Peng) method
This alternative method provides practical guidelines for coordinating allowable nozzle loads with pump manufacturers.
The analysis follows the methodology presented in [1]. Allowable load values are based on normal operating conditions and reflect extensive experience from U.S. refining and petrochemical industries, with applicability to other industrial sectors.
Per L.C. Peng's recommendations, the allowable load for each nozzle connection is calculated as:
For the complete pump assembly:
1. L.-C. Peng and A.O. Medellin, Rethinking the Allowable Pipe on Rotating Equipment Nozzles, the M.W. Kellogg Company, Houston, Texas, 2000