Hydraulic filter paper or glass media?

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snoboy

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Jul 1, 2004
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Maple Valley wa.
My Branson tractor is coming due for another hydraulic fluid change. The Wix 51202 is the basic cross reference. Any body have another preference? I was looking at the Wix 51116 glass media but it doesn't flow the GPM that the 51202 does. Tractor guys whats your thoughts? Thanks

snoboy
 
As you can see the paper filter has a better nominal micron rating

Part Number: 51116
UPC Number: 765809511163
Principal Application: Dresser Graders, John Deere Tractors
All Applications
Style: Spin-On Hydraulic Filter
Service: Hydraulic
Type: Full Flow
Media: Glass
Height: 7.793
Outer Diameter Top: 3.698
Outer Diameter Bottom: Closed
Thread Size: 1 1/2-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/20=7/20
Burst Pressure-PSI: 500
Max Flow Rate: 18-20 GPM
Nominal Micro Rating: 11

Gasket Diameters
Number O.D. I.D. Thk.
Attached 3.431 2.963 0.218

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Part Number: 51202
UPC Number: 765809512023
Principal Application: Case, Cat/Towmotor, IHC, Galion, Gehl, Koehring, P&H, Other
All Applications
Style: Spin-On Transmission Filter
Service: Hyd/Transmission
Type: Full Flow
Media: Paper
Height: 7.803
Outer Diameter Top: 3.698
Outer Diameter Bottom: Closed
Thread Size: 1 1/2-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/20=2/11
Burst Pressure-PSI: 600
Max Flow Rate: 28-30 GPM
Nominal Micro Rating: 5

Gasket Diameters
Number O.D. I.D. Thk.
Attached 3.431 2.963 0.218
 
I have a Century. Same tractor, different loader. If your's is like mine, you need all the flow you can get. I would say the 1 1/2" thread size indicates that. I would go with the paper and not loose a moment's sleep.

BTW: Thanks for the Wix number, I am at the end of the free filters I got from my dealer
 
Russ, I just got off the phone from my dealer who I trust very much. He said that He has received some complaints from people who used the Wix/NAPA hydraulic filters regarding "bumping" of the 3 point. Filter flow related. So he only sells the Branson aka Baldwin. He has no problem on the air,oil, or fuel from other sources he just recommended that I use Baldwin or Branson for the hydraulic filter. Baldwin pn# BT372-10 can be had here: http://www.adiesel.com/searchitems.php I'm just gonna buy filters from my dealer cuz he's a real nice guy.
snoboy
 
Pete C.

Maybe you might want to explain how Wix can show these two "ratings":
Beta Ratio: 2/20=7/20
Nominal Micro Rating: 11

How is it that Wix says the filter has a nominal rating of 11 microns, when a Beta 2 rating means 50% efficiency, so the filter also has a 7 micron "nominal" rating per a beta test.

Why wouldn't Wix claim the filter is 7 micron nominal?
 
Because there is a difference between "nominal" ratings and beta ratios.

From Websters...
"b: of, being, or relating to a designated or theoritical size that may vary from the actual: APPROXIMATE"
 
Well I thought your second line definition post above of "b" was what you were referring to.
B= beta ratio..

However, if not..then why bring up "approximate"?

Are you saying that nominal is approximate? Or beta is approximate..

How would you expect someone to interpret why you posted that line?

Most of the regulars in this forum know that a nominal rating means 50% efficiency.

Even the Filter Council will tell you that.

As the ISO/SAE run Beta test also gives one a Beta x=2 50% efficiency rating, I was asking why there are , in essence, two "nominal" ratings and why Wix would list two different micron numbers.

I also realize 90% of comsumers won't know the difference.

But with the internet and more knowledge on the part of comsumers...Wix may want to ponder that they just might get a question as i've posted it in here when someone does some research and finds out that nominal = 50% efficiency, Beta x =2 means 50% efficiency and there are two different numbers listed.

I've been asked that question before in training seminars I have done. I was hoping, as an emgineer, you would explain. If not i'll give it a shot..
 
I've had the same question for some time and was going to pull the numbers off the website for examples, but never took the time. According to all the websites that I have read.....the NOMINAL RATING FOR AN OIL FILTER IS DEFINED AS THE 50% EFFECIENCY NUMBER. Hence, the beta 2 number MUST match the "NOMINAL EFFECIENCY" number posted by WIX.

WHY? Because "NOMINAL EFFECIENCY" has been set at 50% effeciency by DEFENITION. I have found this confusing as ****. On the other hand, they will list some that match perfectly to the proper definition. What gives?
 
Great info Pete! After reading the clickys you provided it is clearer. Of the two filters I presented its clear that the paper has a better nominal ability and a better beta ratio.
Now with that being said I have done some reading outside of here and called my dealer and its apparently become an issue using the Wix/NAPA for hydraulics on this tractor. Most are now sticking with the Branson OEM or using the Baldwin which I believe is the OEM manufacturer.
Thanks for the info.
 
Pete C.

I must thank you for the links above. Also, commend your company for even posting the beta numbers.

If the "nominal rating" per the three definitions can be manufacturer specific and arbitrary...why even have it?

Here is a link to the Filter Manufacturers Council website that lists "nominal micron rating" at 50% and "absolute micron rating at 98.7%. This would corespond to Beta 2 and Beta 75 per the same article. It is TSB 89-5R3.

Filter Manufacturers Council TSB link

Just scroll down to the title "MICRON RATING FOR MEDIA IN FLUID FILTERS."

I assume that WIX is part of the filter council, so why would you not follow their standards?

So, your links just muddied the water in my opinion. They made nothing clearer other than what I had already surmised...filter micron ratings are bogus. Also, even beta numbers may be bogus as there is no stadardization between filter manufacturers.

Particle counts baby...thats they way I'm going.
grin.gif
Should have the results from the first one next week.

Later.
 
I think we're getting lost in this. What I take away from this is it doesn't matter how Wix is testing as long as their doing the same tests for all their filter. If they are testing consistently then the 51202 would be my choice, based on better numbers.
Thanks again
 
Pete C.

The three article links you posted still doesn't clarify why there are two different "nominal" ratings.
"Filter rating indicating the approximate size particle, the majority of which will not pass through the filter. It is generally interpreted as meaning 85 percent of the particles of the size equal to the nominal filter rating will be retained by the filter."

I've never heard 85% means nominal before..where did they get that?


It might help if you explain which test Wix uses to establich the "nominal" rating posted or available via hotline.


However, there still is the beta ratio version of nominal or 50% efficiency.


Whether nominal is an average or not..it's still widely used as a reference of filtration levels of the filter.

So does Wix use glass beads to rate a media at nominal or contaminant such as AC Fine?

Is the nominal rating determined via a section of media pre assembly or a complete element?

If nominal rating is one micron number with one test, why is it different with a different test?
 
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