... 4.Dia 20~125mm Silicon Carbide Stationary Seat Design 1.Sic mechanical seal2. Sealing ring-O/V ring Material 1.Mating rings: ... ~180 °c Rotating Speed ≤ 3000r/minMedia : Chemical Fluid,such as oil,liquidized hydrocarbon,acid,alkali,pulp water,etc. Characteristics 1 ... by DNV in Nov,1999. APPLICATION Mmechanical seals are used in pumps, blowers, agitators, compressors, and other rotary shaft equipment.