Patent ID: 9062771
Filing Date: 2015-06-23
Classification: F16J,F16K,G01M,G01N,G05B

Abstract:
1. A method of estimating useful life of a seal in a process control device, comprising: determining, via a processor, a plurality of operational cycles of a stem or shaft of the process control device; determining, via the processor, a value corresponding to a stress experienced between the seal and a plug for each of the operational cycles; estimating, via the processor, a total amount of useful life of the seal consumed based on each of the values; and estimating a remaining useful life of the seal based on the estimated total amount of useful life of the seal consumed, wherein estimating the remaining useful life of the seal comprises determining a frequency of the operational cycles and calculating the remaining useful life of the seal based on the total amount of the useful life of the seal consumed and the frequency of the operational cycles.