.It took about 5 hours to connect everything up as well as 2 hours at the supplier to order all parts in as they didn't stock much high pressure stainless fittings.
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OK so 5 Hours of work and all those used parts against a simple new Bauer shell replacement and what 20 minutes of your time. So be it a Frankenstein build it is.
First off, before we take bets looking at that photo I guess welding is not on your CV list of things you do. So I give it no more than 20 hours running before that baseplate welded to the blue paint breaks off.
Second I wonder just how your going to drain the filter when you choose to replace the cartridge
Cant use the drain valve on the separator as the check valve on the discharge left side will stop it. And I cant see a drain valve in the filter shell inlet or outlet.
Third. Those two 1/4 OD tube to female NPT connections one on the inlet male/female line valve and the other on the left side of the discharge gauge They look like flared fittings. If so in addition to a welder this simple job now needs to stretch to having a 1/4 OD flaring tool and tube clamp to make the JIC 37 degree flares on the stainless 1/4 OD HP tube ends.
Forth: They also look like cheap plated steel fittings not a big deal on the large tower as I can see they fit into a couple of stainless adaptors into the aluminium filter but into that small separator wont be long before internal rust starts to swell the thread and damages the soft aluminium separator shell threads or galls them in solid.
Fifth: That LF black filter tower looks odd, I'm taking a guess that you bought it second hand. If you take a look at the hard anodised black filter shell and then the clear aluminium base its not a genuine part. So the black shell is genuine LF part but the clear silver base is a counterfeit. You look close at the machine turning or grooves on the black tower then compare them to the clear aluminium base, Again more bets on that they don't match and the base was some home made lash up on a pressure vessel.
Either way you look at it its now the real deal Frankenstein build which is a shame as its now cost you more to do it and got you less in the long term. And all for what?
1. 5 hours of work
2. Needing a small welding rig
3. Also a small 37 degree flaring tool and clamp
4. Butchering a perfectly good Bauer blue frame
5. A bucket load of parts some of which are second hand
6. And a filter shell base that's a counterfeit pressure part
7. Plated steel tapered fittings into soft tapered anodized aluminium parts separator and BPR
8. Plated steel tapered fitting rusting away on the wet side of the build.
For a job that will fall apart with a cant weld don't weld welder and a filter system you can't drain.
For a compressor your going to find hard to sell now as a genuine Bauer Mariner. (or service professionally) Hope dies last.