Circulating Wet Sump Sampling
Taking a representative oil sample from machine live zones can be challenging with a wet sump system, such as a diesel engine or circulating gearbox in which a return or drain line is not accessible or does not exist. In this type of system, there is a pressurized supply line or a kidney-loop filtration system. With a system containing a pressurized supply line, the most appropriate sampling location may be after the pump but before the filter. Because the sample is taken at a pressurized point, the best sampling valve option is a minimess valve, which ensures no disturbance to the machine’s operations.