When using thermal imaging to diagnose hydraulic system malfunctions, what distinct temperature patterns might indicate a bypassing valve?

When using thermal imaging to diagnose hydraulic system malfunctions, a bypassing valve typically exhibits a distinct and localized hot spot pattern. A bypassing valve is a valve that is leaking internally, allowing hydraulic fluid to flow past the valve's sealing surfaces even when it should be completely closed. This internal leakage causes friction as the high-pressure fluid is forced through the small opening, generating heat. A thermal imaging camera, which detects....