MP Filtri PML2, Руководство пользователя

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Appendix H
Clean working practises 55
Clean working practises
The majority of hydraulic systems require cleanliness which controls below around a
40 micron threshold (beyond the limit of human eyesight). When analysing particles
down to levels of 4um, 6um & 14um you are talking about objects of a cellular/bacterial
size. This creates various challenges, and is starting to drive better and cleaner working
practices in industry. Our products are at the forefront of this challenge, and will help
you to manage the quality and productivity of your systems.
Do’s
•
Do use filter breathers on tank tops.
•
Do use tank designs, which are self draining (sloped or conical).
•
Do use tanks which can be sealed off from the surrounding environment.
•
Do exercise care and use funnels when filling tanks with fluid.
•
Do utilize stainless steel and methods such as electro-polishing in the design of
system components upstream of your first filter set.
•
Do perform off-line analysis in a controlled environment such as a laboratory
which should contain fewer airborne contaminants that where the sample was taken
from.
•
Do use suitable, glass bottles (ideally certified clean) to take samples, along with
a hand pump to reduce contamination ingress.
•
Do filter your system thoroughly before using it in your production process.
•
Do perform a statistically large enough sample of particle analysis results ( 25) to
arrive at a base cleanliness level for your system.
•
Do make sure that filters are correctly sized for your applications and cleanliness
you are trying to achieve.
Don’ts