November 2011

Special Report: Plant Safety and Environment

Pilot-operated safety relief valves: A simple, effective plant upgrade

Replacing spring-loaded valves can help increase efficiency and output

A never-ending quest for plant operators is how to wring more output from the existing infrastructure and budget without compromising safety or product quality. The challenge is daunting, but a relatively simple upgrade can help plant operators take a big step toward meeting it. The replacement of direct spring-operated pressure relief valves (PRVs) with pilot-operated safety relief valves (POSRVs) can help plant operators streamline maintenance processes, reduce maintenance costs, address common valve performance issues, maintain safety and potentially increase output. This article explains how valve replacement can be beneficial. It also clarifies some common misconceptions about POSRV

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