Page 476 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer

Lube, Seal and Control Oil System Best Practices Best Practice 7 .34

Fig 7.34.5 ISO carbon seal (Courtesy of Elliott
Co.)

of each seal must be properly designed such that the differential provides a minimum of leakage 20 to 40 liters (5 to 10 gallons)
pressure present provides sufficient flow through the seal to per day per seal and provides reliable operation (continuous
remove the heat of friction at the maximum operating speed. operation for three or more years). As will be discussed below,
The type of gas side seal used in Figure 7.34.5 is a contact seal the specific types of seals used in the double seal (liquid) con-
similar to that used in most pump applications. This seal figuration can vary.

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