Water-Oil Separator Double Filter (Orange Cylinder)

[PelletJunkie]

I have been reading through the forum threads referencing how to remove (separate) water and oil from the system when filling airguns and tanks. The generic dual orange cylinder filter comes up in several threads as a recommended option.

Some of the older forum threads included URL(s) to Ebay and AliExpress that are no longer active links. I was able to find a similar filter, but wasn't sure if anyone had a recommended source to purchase this from?

-PJ

 

[WorriedMan]

PJ,
Recently learned the double-tube set-up is geared more towards breathing air usage over the single-tube system. Actually, the single-tube system ($125) is one half of the double-tube system ($300), the second tube containing activated charcoal to remove odors and taste, making breathable air more palatable. Your PCP doesn't care about tastes and odors, save your money, get the single tube. WM

 

[WorriedMan]

PJ,
Purchased my single-tube water/oil separator on eBay, from seller, Industry Factory, on August 1, 2021, for $125.99, free shipping. WM

 

[Geezerhood]

For a PCP setup, my understanding is that you fill the 2nd tube with just moisture absorbing material in the plastic tube to get the air as dry as possible. No need for the charcoal unless you wanted to have an emergency SCBA mask setup in your home in case of a fire. If you use the type of moisture absorbent that changes color when moisture has been absorbed then you will know if and how much moisture is getting past the first stage water separator. If it never changes, then you are getting all of the moisture with the first stage.

I ordered this one on Aliexpress for $162.15 shipped with all the discounts offered that I could find. I plan to hook up to my Yong Heng. It arrived today, taking exactly 11 days from when I ordered it. I haven't installed it yet, but it looks well made. They also have a smaller version for lower volume flow compressors that should work well on the YH I would think in lower humidity areas.

https://www.aliexpress.us/item/2251832846255194.html?spm=a2g0o.order_detail.0.0.3318f19c2ZaNVT&gatewayAdapt=glo2usa&_randl_shipto=US

 

[WorriedMan]

PJ,
Started out with the $60 long, gold filter, which came with two (3-media) plastic inserts. Found out my Florida garage was too humid, and the small, black (cotton-filled) Yong Heng filter was getting soaked. Added the $125 water/oil separator, now all is clean and dry. The blue (cotton-filled) filter was left over from hand pumping, figured it might help. WM

 

[Geezerhood]

PJ,
Started out with the $60 long, gold filter, which came with two (3-media) plastic inserts. Found out my Florida garage was too humid, and the small, black (cotton-filled) Yong Heng filter was getting soaked. Added the $125 water/oil separator, now all is clean and dry. The blue (cotton-filled) filter was left over from hand pumping, figured it might help. WM

For the Yong Heng I think that orange one is probably better than the one I got for trapping water in high humidity locations because the one I have doesn't have a drain hose attachment on it, just the bleed screw, so any water just sprays out around it and you have to open it up to dry / replace the cotton filter.

My recollection is that you don't do any filter changes or maintenance other than draining the water out on the orange one, is that correct? The Tuxing I just got is a pain to change the filters. You have to completely remove the steel line between the two cylinders to unscrew the caps. Both caps were leaking on mine when fully tightened. I think the O-Rings are too small as I couldn't tell when threading the caps on when O-Ring contact was made. I had to put teflon tape on the threads to stop the leaking. I will be trying a larger O-Ring to see if that works.

Had I bought it from Amazon, it would be going back today, but it does work - no signs of water on the output side, and I don't want to deal with shipping it to China. I am used to a small blue water / oil filter after the included black, taking just a few minutes to fill my guns. With this gigantic thing in line it now takes 3 to 4 times longer to fill the same gun. The internal capacity is more then double that of some of my guns and probably 10x that of my Prod. I do think it will be good for filling an SCBA tank (soon to be purchased) with the cleanest air possible for the price. I will eventually fill the 2nd filter with colored indicator beads rather than the mixture of 3 different materials.

 

[WorriedMan]

Geezerhood,
You're correct, the orange coalescing tube is not recommended to be opened, in fact, there's no media inside, just a series of baffles and chambers that direct the heavier water/oil molecules towards the bottom while allowing clean air to exit the top. A quick opening of the tap, during compressor operation, vents water/oil to sink. After reaching proper air pressure in gun, prior to shutting off compressor, I open all three vent screws (two on Yong Heng, one on coalescing filter), a few seconds later shut off compressor. All three vents stay open till after compressor start at next fill session. The color indicator beads are OK, just that Biohazardman said you should upgrade your moisture removal system, before the beads, rather than allowing for soaking on a regular basis. WM

 

[Geezerhood]

Geezerhood,
You're correct, the orange coalescing tube is not recommended to be opened, in fact, there's no media inside, just a series of baffles and chambers that direct the heavier water/oil molecules towards the bottom while allowing clean air to exit the top. A quick opening of the tap, during compressor operation, vents water/oil to sink. After reaching proper air pressure in gun, prior to shutting off compressor, I open all three vent screws (two on Yong Heng, one on coalescing filter), a few seconds later shut off compressor. All three vents stay open till after compressor start at next fill session. The color indicator beads are OK, just that Biohazardman said you should upgrade your moisture removal system, before the beads, rather than allowing for soaking on a regular basis. WM

Thanks for the feedback. I finally found the seller you got yours from. here is a . between the two words - Industry.Factory. I might get one of these for my GX CS3 for humid days if I start seeing a lot of moisture in my 2nd water trap on the GX. It would take too long to fill that double cylinder one I have on the Yong Heng. With the normal RH we have here, I am not seeing any hint of moisture in my small blue 2nd stage water trap.

Ebay Seller Industry.Factory

 

[PelletJunkie]

Thank you for the feedback and input. I ended up going with the single orange cylinder coalescing water separator that I got from here (cheapest that I could find):

30MPA Oil Water Separator Air Compressor Filter PCP Compressor Pump 300BAR 2inch | eBay

30MPA Oil Water Separator Air Compressor Filter for PCP Compressor Pump Φ：2IN Don't take apart the High Pressure Air Filter, because disassembling it will make the Water-Oil Separator non-working. · The filter is made of aviation grade aluminum alloy shell, resistance to high pressure. It works...

www.ebay.com

It arrived in a few days and looks like it should work well. I'll report back if I have any issues.

-PJ

 

[DuncanHynes]

I am getting, I think, a GX4 model off Amazon. I too live in a humid zone; a water filter of some type is a must I presume. In the photo of the orange filter I was wondering why the intake is on the top. I thought by having it on the side allowing time for water to fall the top would thereby "suck up" only air??
But I don't play with high pressure---

Oh, I see the other internal cutout, there is a tube from the top, thought was open.

 

[DuncanHynes]

The opperation of this tube, open the bottom after each 30 min or what? And the filter media/guts, leave alone for all time?

 

[Geezerhood]

The opperation of this tube, open the bottom after each 30 min or what? And the filter media/guts, leave alone for all time?

I don't own one, but that is my understanding on how it works. My reading indicated that they recommend that you do not dissassemble it.

I would probably do a quick open / close every few minutes rather than waiting for 30 minutes, to check and see how much water is being caught. With my Tuxing double tube model, the middle sized one, I can do a super quick bleed to see if any water comes out without adding more than a few seconds to the fill time. I do the same thing with the final water trap on my Yong Heng.

 

[DuncanHynes]

So you open it quick as pump is running?

 

[Geezerhood]

So you open it quick as pump is running?

Yes. It works well for me, but I get very little water in the traps since I am in the high desert. I open it as fast as I can and leave it open for no more than 1 second and visually observe if any water or water mist comes out. If I see quite a bit of moisture exiting, I will open it again for a bit over 1 second, then close it again. That usually gets rid of all the water. The Yong Heng is right back up to the previous pressure again in 10 to 30 seconds.

 

[DuncanHynes]

Yes. It works well for me, but I get very little water in the traps since I am in the high desert. I open it as fast as I can and leave it open for no more than 1 second and visually observe if any water or water mist comes out. If I see quite a bit of moisture exiting, I will open it again for a bit over 1 second, then close it again. That usually gets rid of all the water. The Yong Heng is right back up to the previous pressure again in 10 to 30 seconds.

Okay, thank you. New to compressors as all I have now is a Hill pump

 

[Revin]

Thank you for the feedback and input. I ended up going with the single orange cylinder coalescing water separator that I got from here (cheapest that I could find):

30MPA Oil Water Separator Air Compressor Filter PCP Compressor Pump 300BAR 2inch | eBay

30MPA Oil Water Separator Air Compressor Filter for PCP Compressor Pump Φ：2IN Don't take apart the High Pressure Air Filter, because disassembling it will make the Water-Oil Separator non-working. · The filter is made of aviation grade aluminum alloy shell, resistance to high pressure. It works...

www.ebay.com

It arrived in a few days and looks like it should work well. I'll report back if I have any issues.

-PJ

I see you've had your filter for a while now. Are you still happy with it?

 

[PelletJunkie]

I see you've had your filter for a while now. Are you still happy with it?

Revin

Thanks for the reminder. It works well and it seems to be stopping all moisture from getting into my SCBA tanks. I'm probably going a little overboard as I am running three filters.

I put a Gold Tuxing Water Oil Separator Molecular Sieve filter in between the JB Alpha Filter and the copper Coalescing Water Separator. When I purge the water every 7 minutes I am only getting water coming out of the Copper Colored Coalescing (none coming out when I bleed the JB Alpha filter). So far everything is working as I expected and I haven't seen any rust as I saw mention that someone experienced with their Coalescing filter.

The main reason I run the extra Gold Tuxing filter is in case there was any rusty water somehow getting by I didn't want it getting into the JB Alpha filter.

Here is how I have it connected together:

-PJ

 

[Revin]

Revin

Thanks for the reminder. It works well and it seems to be stopping all moisture from getting into my SCBA tanks. I'm probably going a little overboard as I am running three filters.

I put a Gold Tuxing Water Oil Separator Molecular Sieve filter in between the JB Alpha Filter and the copper Coalescing Water Separator. When I purge the water every 7 minutes I am only getting water coming out of the Copper Colored Coalescing (none coming out when I bleed the JB Alpha filter). So far everything is working as I expected and I haven't seen any rust as I saw mention that someone experienced with their Coalescing filter.

The main reason I run the extra Gold Tuxing filter is in case there was any rusty water somehow getting by I didn't want it getting into the JB Alpha filter.

Here is how I have it connected together:

View attachment 345588

-PJ

Thanks for the update, I'll be ordering one tomorrow

 

[Scotty1]

Revin

Thanks for the reminder. It works well and it seems to be stopping all moisture from getting into my SCBA tanks. I'm probably going a little overboard as I am running three filters.

I put a Gold Tuxing Water Oil Separator Molecular Sieve filter in between the JB Alpha Filter and the copper Coalescing Water Separator. When I purge the water every 7 minutes I am only getting water coming out of the Copper Colored Coalescing (none coming out when I bleed the JB Alpha filter). So far everything is working as I expected and I haven't seen any rust as I saw mention that someone experienced with their Coalescing filter.

The main reason I run the extra Gold Tuxing filter is in case there was any rusty water somehow getting by I didn't want it getting into the JB Alpha filter.

Here is how I have it connected together:

View attachment 345588

-PJ

You win the “most filtering” prize for any YongHeng I’ve ever seen!!

 

[WorriedMan]

PJ,
One heck of a set-up, anyone buying a gun fed from that should have no worries. My only suggestion comes from a Biohazardman recommendation to keep all items to be filled higher than the system. Since moisture prefers low-lying areas and making it struggle uphill to get to your stuff is a good thing, he always stressed high placement. WM