Simply the finest filters....

NAS Grade

The cleanliness of your Hydraulic Fluid is very crucial to the trouble free and cost effective operation of your hydraulic system. Hydraulic components are very expensive and need special consideration when selecting and filtering this fluid. ISO 4406 code is a standard that is recognized in the industry. Certain recommended fluid cleanliness quantities are necessary to realize the best performance and cost saving operation of your hydraulic system. Determine the required standard of filtration you require from the chart below.

NAS GRADE (Nos. in 100ml)
  1 2 3 4 5 6 7 8 9 10 11 12
5-15 500 1000 2000 4000 8000 16000 32000 64000 128000 256000 512000 1024000
15-25 89 178 356 712 1425 2850 5700 11400 22800 45600 91000 182000
25-50 16 32 63 126 253 506 1012 2025 4050 8100 16200 32400
50-100 3 6 11 22 45 90 180 360 720 1440 2880 5760
>100 1 1 2 4 8 16 32 64 128 256 512 1024
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