Hydraulic Filtration Technical Reference - Donaldson Company, Inc.

More documents

Recommendations

Info

HYDRAULIC FILTRATION TECHNICAL REFERENCE Technical Reference Wire-Mesh Media Wire-mesh media consists of stainless steel, epoxy-coated wire mesh available in 3 mesh sizes: • 100 mesh yields 150 µm filtration • 200 mesh yields 74 µm filtration • 325 mesh yields 44 µm filtration Typically wire-mesh filters will be applied to catch very large, harsh particulate that would rip up a normal filter. You may also find this media useful as a coarse filter in viscous fluid applications. SEM 60x SEM 100x MEDiA iMAgE Water Absorbing Media Water absorption media quickly and effectively removes free water from hydraulic systems. Using super-absorbent polymer technology with a high affinity for water absorption, this media alleviates many of the problems associated with water contamination found in petroleum-based fluids. SEM 100x SEM 600x MEDiA iMAgE 338 • Hydraulic Filtration HOW iT WORkS HOW iT WORkS www.buydonaldson.com
www.buydonaldson.com Technical Reference Donaldson Filter Media Efficiency Ratings per ISO 16889 Test Standards ISO 16889 is the international standard for Multi-Pass Testing to determine the efficiency (beta rating or beta ratio) and the dirt-holding capacity of the filter. It replaced the ISO 4572 test standard. Donaldson filter media has been re-tested per the new standard and the current beta ratios are shown at right. New beta ratios are shown at 200 and 1000, with a (c) to indicate test adherence to the ISO 16889 standard and traceability to NIST test dust. Fluid to be Recommended Filtered Media Petroleum-based ................................Synteq or Cellulose Phosphate Ester ..............................................DT Synteq Diester ...................................................................Synteq Water Glycol ....................................................DT Synteq Water-Oil Emulsion ................................................Synteq Biodegradable Fluid ...............................................Synteq HWCF (high water content fluids) ........................Synteq Coarse Filtration ..............................................Wire Mesh Donaldson Filter Media Efficiency Ratings Per ISO 16889 Test Standards FORMER Media Rating NEW Rating NEW Rating Number Beta X=75 Beta X(C)=200 Beta X(C)=1000 per ISO 4572 per ISO 16889 per ISO 16889 Donaldson Synteq Synthetic Media No. ½ 2 µm 50 µm (c) Donaldson DT Synteq Synthetic Media DT 2µm DT 5µm DT 8µm DT 14µm N/A N/A N/A N/A 40 µm (c) No. 25 N/A 32 µm (c) >40 µm (c) Donaldson Wire Mesh Media No. 44 45 µm nominal 325 mesh N/A No. 74 75 µm nominal 200 mesh N/A No. 149 150 µm nominal 100 mesh N/A Donaldson Water Absorbing Media WA N/A >30 µm(c) >30 µm(c) Hydraulic Filtration • 339 HYDRAULIC FILTRATION - TECHNICAL REFERENCE
Page 1 and 2: Symbols Used ß Beta Ratio cSt Cent
Page 3 and 4: Where Contamination Comes From Ther
Page 5 and 6: Proper Filter Application When sele
Page 7 and 8: How Filter Media Functions In a Fil
Page 9: DT Synteq Media (High-Performance)
Page 13 and 14: 3. Flow Higher flows create higher
Page 15 and 16: Combining the ISO Rating and Filter
Page 17 and 18: Number of Particles per Milliliter
Page 19 and 20: The old particle counter calibratio
Page 21 and 22: Cleanliness Level Correlation Table
Page 23 and 24: A Note on Seals www.buydonaldson.co
Page 25 and 26: Suction Filter Benefit: Medium Norm
Page 27 and 28: www.buydonaldson.com hydraulic filt

Hydraulic Filtration Technical Reference - Donaldson Company, Inc.

Create successful ePaper yourself

Delete template?

Save as template?