From the graph shown in the illustration, if the separating temperature required is to be 167°F, and the specific gravity of the oil is .98 kg/dm3 at 59°F, what size regulating ring is required? Illustration MO-0113

Correct Answer: Option C — 92 mm

Determining the correct gravity disc or regulating ring requires correcting the oil specific gravity to the operating temperature using chart MO-0113. Following the intersection of 167°F and the corrected density yields the proper 92 mm ring size.