Mechanical seals are used as shaft seals in pumps, agitators, compressors and other rotary machines handling liquid and gaseous media. The process pressures which have to be contained by the seals range from vacuum to more than 400 bar. In some cases, the chemical and thermal stability required of the mechanical seal is very high. The design of the seal and the choice of material from which it is made play a crucial role in making sure that it operates reliably for a sustained length of time under the conditions for which it was designed and for which the material was chosen.
Since the introduction of EagleBurgmann DiamondFace in 2007, numerous applications in pumps, compressors and agitators in the chemical, oil & gas, refinery, slurry, pharmaceutical and water supply fields have demonstrated the clear advantages of such seals. Lower energy consumption, far longer service life and much improved MTBF and MTBR performance are convincing proof and directly reflected in cost savings. A diamond coating up to 8 µm thick makes the seal faces extremely hard and wear resistant. Other outstanding features include excellent heat conductivity, maximum chemical resistance and low friction.