Inline hydraulic filter

[J_J]

I saw this and thought some of you might be interested in this kind of high pressure filter to put on the output of the hydraulic motor, or anything returning to tank.

http://www.hydraulicstore.com/filtersinline.html

Item Code: 2530213

Hydraulic filter assembly pressure, inline, 1/2" female NPTF inlet X 1/2" female NPTF outlet, 4 15/16" overall length, 1 1/2" diameter, 3000 psi maximum pressure. Standard element is 25 micron. Arrow #9054 Replacement element and seal kit #EK9054 10, 40 and 90 micron elements & seal kits available, call Hydraulicstore.


Unit of Measure: EACH
Unit Price: $27.67 US


Weight: 0.46 pounds
Stock Availability: In stock

Order quantity:

 

[BobRip]

J.J., do you feel this would increase the life of the machine? Would your suggestion be to connect it to the PTO and leave the PTO on most of the time? Also would you use it with an attachment on the PTO? Would it handle the PTO flow?

 

[J_J]

J.J., do you feel this would increase the life of the machine? Would your suggestion be to connect it to the PTO and leave the PTO on most of the time? Also would you use it with an attachment on the PTO? Would it handle the PTO flow?

Bob,

I would at least put one on the output of the hydraulic motor. and you could also connect it between the PTO hose and run it that way. However, I would get the filter that you can take apart and change the internal filter. You might also tee in a gage to monitor the pressure. When new, note the pressure , and keep an eye on it, or listen for the relief valve on the PTO valve. I am thinking about getting a couple of these. The price seems right.

 

[Bob999]

I wouldn't think that the filter would do much good. The standard filter on the PT is 10 microns. The finest filter listed is 25 microns with alternatives that would provide even less filtration.

I think that if you are going to the trouble to add a filter that it should be 10 microns or LESS. This is the filter Burden Sales Surplus Center Item Detail I added to the return line from my mower. It comes with a 10 micron cartridge but finer cartridges are available.

 

[ponytug]

I would have to agree; however, it depends upon what one wants to achieve. If you are trying to keep out gross debris the one JJ posted would do it. The one that you posted has the capacity to filter and hold a significant amount, which would be especially important if one were using a finer filter.

Either way, it would be prudent, as JJ mentions, to have either a pressure gauge on each side, or like this one a differential pressure indicator, or both.

All the best,

Peter

I wouldn't think that the filter would do much good. The standard filter on the PT is 10 microns. The finest filter listed is 25 microns with alternatives that would provide even less filtration.

I think that if you are going to the trouble to add a filter that it should be 10 microns or LESS. This is the filter Burden Sales Surplus Center Item Detail I added to the return line from my mower. It comes with a 10 micron cartridge but finer cartridges are available.

 

[J_J]

I wouldn't think that the filter would do much good. The standard filter on the PT is 10 microns. The finest filter listed is 25 microns with alternatives that would provide even less filtration.

I think that if you are going to the trouble to add a filter that it should be 10 microns or LESS. This is the filter Burden Sales Surplus Center Item Detail I added to the return line from my mower. It comes with a 10 micron cartridge but finer cartridges are available.

Bob, 25 micron is the standard, there are other selections, as in below.

Hydraulic In-Line Filter 3000 PSI Maximum 25 Micron Standard (10, 40 & 90 Micron Available, Call) Anodized Aluminum Housing Sintered Bronze Element Can Be Removed to be Cleaned or Replaced 40ｺF to 200ｺF Operating Temperature Tee type features the added convenience of an element that can be removed without breaking line connections

 

[Bob999]

Bob, 25 micron is the standard, there are other selections, as in below.

I miissed the 10 micron option in your original post.

I think sintered filter elements have very little material holding capacity and will quickly block if there is much to be filtered. If you put one of those filters on the PTO circuit which pumps a lot of fluid I would be concerned that it would quickly begin to block with a 10 micron or less element and with a 25 micron or higher number I wouldn't think it would do much good.

On the other hand the filter housing/element is relatively inexpensive and aside from potentially reducing flow won't do harm and might do some good. However by the time you buy the additional fittings and pressure monitoring equipment you will increase the cost and still have a filter with very little capacity to hold contaminants.

 

[SnowRidge]

I wouldn't think that the filter would do much good. The standard filter on the PT is 10 microns. The finest filter listed is 25 microns with alternatives that would provide even less filtration.

I think that if you are going to the trouble to add a filter that it should be 10 microns or LESS. This is the filter Burden Sales Surplus Center Item Detail I added to the return line from my mower. It comes with a 10 micron cartridge but finer cartridges are available.

Bob, why did you select an expensive high pressure filter for the mower return line? What would be wrong using this one, for example.

Did you have a concern that something could plug downstream causing the filter to rupture?

 

[ponytug]

The concern that I would have is that at high flow rates, you could potentially get excessive pressure onto that filter, causing a leak or rupture. I would stick with a filter rated for the full pressure, just in case the filter gets a bunch of debris and develops some back pressure.

With a high pressure filter, you would have the option of hooking up a short hydraulic line and running the PTO circuit as a filter, without the attachment in place.

All the best,

Peter

Bob, why did you select an expensive high pressure filter for the mower return line? What would be wrong using this one, for example.

Did you have a concern that something could plug downstream causing the filter to rupture?

 

[woodlandfarms]

On thing that confuses me about the Burden filter is that the bypass is set at 50 PSI? Or am I mis-reading the info.

 

[ponytug]

Carl,

That is a delta of 50psi, i.e. 3000psi in, 2950psi out. It is designed to prevent a plugging filter from rupturing anything catastrophically.

In general, a filter with a bypass is preferable to one without because of the safety issues.

All the best,

Peter

On thing that confuses me about the Burden filter is that the bypass is set at 50 PSI? Or am I mis-reading the info.

 

[J_J]

To all. I think some of you think you are drawing clean fluid from your reservoir, it should be, but guess what. The steering ,lift, and PTO circuits draw directly from the tank, and dump their expended fluid back to tank including everything that has come loose or broken, etc. I have said this before, the variable speed pump and wheel motors should have the most clean fluid, because the charge pump maybe filters 3 to 5 GPM only and it has to supply makeup make up fluid or flush the tram pump, and it is a 10 micron filter, or whatever you put in as a replacement. If your machine has wheel motors with case drains, the drain lines are connected to the tram pump case, and the tram case fluid with the wheel motor fluid is sent back to the cooler and back to tank. So in essence, overall, all the fluid is being filtered filtered over time. So putting an in-line filter, be it 25 or 10 micron, it will give you something better than what you had. You could even go so far as to put a 10 micron and a 25 micron in parallel. The pressure line goes to a tee and then to each filter, which has a tee on the output and back to tank. The theory is that if you keep the tank fluid clean and free of water, that is about the best you can do. Put one of those filter on the output of the steering valve return line. There again, you are improving the filtration of the complete system.

If you want to protect the PTO motor, put the filter before the motor. If you want to keep the steering and lift circuits clean, put one before the steering valve.

I am not not slamming Bobs filter, because it is a good idea. These little in-line filters are less expensive, and you can break them down and check whether they are contaminated.

The filter cart assembly is also a good idea. Some of you use your PT quite a bit, and others only use their PT once a week or month.

Years ago, I had a 22 HP Kohler with a regular filter and a 1 micron bypass filter. They were in parallel, so the regular filtered it's usual capacity, and the 1 micron would filter would also be filtering. When a Kohler dealer finally had to break the engine down, there was no sludge, and he said the inside looked like new. Now the 1 micron filter cost about $40,00, but it paid off in extended engine life.

 

[Bob999]

Bob, why did you select an expensive high pressure filter for the mower return line? What would be wrong using this one, for example.

Did you have a concern that something could plug downstream causing the filter to rupture?

I mounted the filter on the mower so there is a quick connect between the filter and the tank. Quick connects are a significnt restriction and I was concerned that the filter would see some significant pressure during normal operation. I was also concerned about the (remote) possibility that the return quick connect could be blocked/disconnected and the filter would see full pressure.

I mounted the filter on the mower because I couldn't find a place to mount it on the tractor. I wasn't comfortable using a low pressure filter unless I could mount the filter so there would be a direct connection to the tank without restriction or quick disconnect fittings.

 

[J_J]

I mounted the filter on the mower so there is a quick connect between the filter and the tank. Quick connects are a significnt restriction and I was concerned that the filter would see some significant pressure during normal operation. I was also concerned about the (remote) possibility that the return quick connect could be blocked/disconnected and the filter would see full pressure.

I mounted the filter on the mower because I couldn't find a place to mount it on the tractor. I wasn't comfortable using a low pressure filter unless I could mount the filter so there would be a direct connection to the tank without restriction or quick disconnect fittings.

On the subject of QD's. If you use a 1/2 QD on a 1/2 in hose, yes , you will have some restriction. The way around this is to install the next larger size, and that would be 3/4 in ,in this situation. Even if there is some blockage, or the QD doesn't connect, the pressure relief will activate. I believe the filter can take about 3000 psi. Other filters can take more.