Page 128 - Shroeder - Filter Systems
P. 128

Appendix           Contamination Types




              Contamination      Particle Type:
                       Types       Gel-type residue from filter element

                     All photos   Effect:
              x 48 magnification
                                   ■ Blocking of filter
                  1 scale mark =      ■ Silting-up
                        45 µm












                                 Particle Type:
                                   Silicates due to lack of, or inadequate,
                                   air breather filter
                                 Effect:
                                   ■ Heavy wear on components
                                   ■ Breakdowns in pumps, valves
                                   ■ Wearing of seals










                                 Particle Type:
                                   Colored particles (red/brown)
                                   Synthetic particles (blue)
                                 Effect:
                                   ■ Breakdowns in pumps, valves
                                   ■ Wearing of seals












                                 Particle Type:
                                   Fibers due to initial contamination,
                                   open tank, cleaning cloths, etc.
                                 Effect:
                                   ■ Blocking of nozzles
                                   ■ Leaking from seat valves










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