Discipline Archive

Reliability & Diagnostics

Field diagnostics for pump cavitation, transient deaerator pressure decay after turbine trips, minimum continuous stable flow (MCSF), and anti-flashing suction piping.

17 min read•2026-03-25

Pump Cavitation Diagnostics: NPSHa vs NPSHr & Transient Flashing Prevention

Comprehensive engineering guide to diagnosing, preventing, and eliminating cavitation in boiler feed pumps. Discover the physics of vapor bubble micro-jet collapse, how to interpret high-frequency acoustic FFT spectrums, and how to size suction piping with zero vapor pockets.

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MCSF vs MCTF operating zones, Automatic Recirculation Control (ARC) valve mechanism, and deaerator bypass piping

16 min read•2026-04-05

Minimum Continuous Stable Flow (MCSF) & Automatic Recirculation Valve Sizing

Engineering guide to sizing boiler feed pump minimum flow bypass systems. Understand the thermodynamic difference between MCTF and MCSF, size Automatic Recirculation Control (ARC) valves, and design multi-hole restriction orifices that return safely to the deaerator vapor space.

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