A boiler feedwater pump can be damaged long before a control room alarm indicates a problem. During startup, low-load operation, recirculation, or a downstream isolation event, the pump may operate below its allowable minimum continuous [...]

Pulled After a Decade and a Half. Rebuilt for One Sixth the Cost of New. HBE Automatic Recirculation Valves | Cooling Tower Makeup Water Service | Coal Fired Baseload Unit, Midwest The Application When one [...]

A high-pressure pressure reduction valve is rarely a simple throttling component. In boiler feedwater, refinery, chemical, and utility service, it must dissipate significant energy without creating destructive noise, vibration, flashing, cavitation, or downstream instability. When [...]

A centrifugal pump can sustain serious internal damage while its driver remains loaded, its discharge pressure appears normal, and the control room sees no immediate alarm. The risk begins when process demand falls below the [...]

A large pressure drop across one restriction can turn a controlled bypass into a destructive operating condition. Flashing, cavitation, high velocity, vibration, and unacceptable noise often begin at the point where pressure energy is released [...]

A pressure-reducing valve can appear to be operating normally while the downstream piping absorbs the real damage. When liquid pressure falls below vapor pressure, flashing begins. The resulting two-phase flow can erode valve trim, elbows, [...]