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View Full Version : ISO particles counts and contaminant throughput: Some Incredible Numbers!



george morrison
09-04-2003, 10:23
In an effort to provide relevance for our work here with ISO cleanliness and results, the following are some rather eye-opening numbers with respect to the amount of dirt/contaminants that can pass through a system for a given ISO code. The calculations are based on a 75 GPM flow rate at 90% duty cycle. (7852 hours/year operation) These flows are much higher than our Duramax would experience in a year, however, still very relevant. They are computed for an industrial hydraulic system working 24 hours day..

ISO 18/15/13 = 66,339 pounds/year (!)
ISO 17/14/12 = 26,536 pounds/year (!)
ISO 16/13/11 = 22,113 pounds/year
ISO 15/12/10 = 13,268 pounds/year
ISO 14/11/9 = 8,845 pounds/year
ISO 13/10/9 = 4,422 pounds/year
ISO 12/9/8 = 2,211 pounds/year
ISO 11/8/7 = 1,106 pounds/year

Lowering ISO even by one ISO code canhave a significant impact on contaminant throughput and resulting system wear.
George

[ 09-04-2003, 06:24 PM: Message edited by: george morrison ]

mdrag
09-04-2003, 17:19
George,

What else can you say but WOW! With all the attention given to the particle count 'numbers', I never thought to think of it in this fashion.

Just imagine if we could lower the particle count of beer by (3) ISO codes - and lose weight but drink more beer :D ;)

SoCalDMAX
09-04-2003, 19:27
What brand is this beer filter?

How often would one have to change it?

What size hose should I use? Any particular type of fittings?

Would it be better to have a suction side filter, or do we need a CO2 system to keep the beer from cavitating under WOT drinking conditions?

Ohh, I'm starting to get a hangover already... ;)

Regards, Steve (Definitely ready for a beer!)

Kennedy
09-04-2003, 20:21
Originally posted by SoCalDMAX:
What brand is this beer filter?

How often would one have to change it?

What size hose should I use? Any particular type of fittings?

Would it be better to have a suction side filter, or do we need a CO2 system to keep the beer from cavitating under WOT drinking conditions?

Ohh, I'm starting to get a hangover already... ;)

Regards, Steve (Definitely ready for a beer!) I'm afeered it would cause too much outgassing of the beer leaving it flat. What would the world be like without bratwurst, cheese curds, and beer farts? :D

mdrag
09-04-2003, 21:21
This is the second time I tried to post a proposed name, but I just can't bring myself to do it...

ndamico
09-04-2003, 21:26
You never know. Maybe one will show up at the next Ocktoberfest.. you know those Germans love their brew...

Lone Eagle
09-04-2003, 21:52
John, that is the best definition of outgasing I have herd. Later! Frank ;)

chuntag95
09-05-2003, 08:36
George,

What's the calculation for reducing your towing capacity due to particle gathering in the filters? tongue.gif At 15/12/10, by the end of the year, you can't tow nothing. :eek: