Couple of questions re Bauer mini verticus (MV120-5.5-2)

[stiebs]

There is a Bauer MV120 that I'm interested in. Not much info on it, and from the pics looks somewhat weathered and will need a little TLC. Not sure if that was while in service, or if its been neglected after being taken out of service. Hour meter says 5095 hours.

It doesn't come with any whips, and both outlets are labelled 225 bar:

Looking at the inside photos, the separator looks different to what I've seen before. The easily identifiable Bauer pressure relief is not sitting atop the cylinder, but there appears to be an electronic pressure switch which I assume either cuts the compressor or releases a valve somwhere else? What would be involved in increasing to 300bar? Changing out the pressure sensor?

Also not sure the condition of the filter tower, especially considering the corrosion around the u-bolts holding it in place. Obviously would be an expensive outlay to replace the housing..

Also

 

[Mudbags]

That cylinder isn't the final separator. It's simply a 'blowdown vessel' for the automatic drains. The drains dump into the vessel to reduce noise and mess. The top of it is just a carbon filter to let the air out so the unit isn't pressurised when the drains open.

The electronic unit in the photo is the solenoid valve and coil that controls the auto drains. A timer in the control box will de-energise the coil every 15 minutes(ish) and cause the drains to operate. Same thing will also happen when the unit is shut down.

The water separator will be behind the front panel. The separator and safety valve will look exactly like what you're familiar with.

Upgrading it to 300 bar isn't hard. Just need to adjust the setting of the safety valve (get someone trained or familiar to help) and adjust the setting of the pressure switch. The pressure switch is likely a blue Telemecanique (now Schneider) unit that sits behind the front panel, not far from where the separator and relief valve are.

There's a couple of variations of the switch depending on how this compressor was set up (auto stop only, or auto start/stop). There's probably also another pressure switch that's very similar - it will be the safety cutoff for low oil pressure.

Get the side doors off and you'll see what's going on.

 

[happy-diver]

Well get yourself over to bunnings for this 25mm stuff you won't find better, value included

Then slap it all around to reconstitute the almost whisper quietness these are renowned for

Hey check the sexy red wheels and look at this

Clarify yourself with manuals, to diferentiate your bolts from your screws, to screw it up less

Having tackled this, and the other million things, reenergize to prepare for all that pumping

MMMMMagnificent!

 

[stiebs]

That cylinder isn't the final separator. It's simply a 'blowdown vessel' for the automatic drains. The drains dump into the vessel to reduce noise and mess. The top of it is just a carbon filter to let the air out so the unit isn't pressurised when the drains open.

The electronic unit in the photo is the solenoid valve and coil that controls the auto drains. A timer in the control box will de-energise the coil every 15 minutes(ish) and cause the drains to operate. Same thing will also happen when the unit is shut down.

Thanks @Mudbags .. I had checked in the manual and the diagrams at the front showed the version without the auto drain. It wasn't until after I posted that I went through more exhaustively and saw the auto-drain componentry which mine has.

I'm looking forward to playing with my new toy. Looks like there weren't too many interested parties in the auction, and I managed to win the auction for less than it cost me to transport it 120km from the auction yard.

First stop is an experience Bauer compressor tech to give it a knowledgeable once over, and hopefully a service and not an overhaul then onto me to clean it up and put it to use.

 

[stiebs]

Well get yourself over to bunnings for this 25mm stuff you won't find better, value included

...

Then slap it all around to reconstitute the almost whisper quietness these are renowned for

View attachment 897191

Yep, the ol' sound proofing looks like its seen better days! Should have it looking like your before too long! Then down the road of designing and building an excessively over engineering fill panel

Clarify yourself with manuals, to diferentiate your bolts from your screws, to screw it up less

Touche sir.

 

[Mudbags]

View attachment 897194

Having tackled this, and the other million things, reenergize to prepare for all that pumping

MMMMMagnificent!

Mate I'm reading way too much into this photo. You have more glasses than you have eyeballs and you re-energise by eating an entire lettuce. I used to like reading your posts, please don't tell us you're one of them vegans.

But yes your old MV unit does look bloody neat and tidy, nice cleanup job.

 

[happy-diver]

Dudes!!!!

Why bother with a fill panel, fairdinkum, I've got a couple that I haven't even had the time to hook up

Maaaaate, here's the only vegans I allow in the place, the salad is filler so I only eat 4 pies instead of 8

The glasses some folks are bi-lingual yeah that's me and I'm also multifocal to keep my eyes on you all

and all the better to pick up on any reassembling challenges and keep another eye on various other vistas

Where did all the cows go geez you give a creature legs

 

[stiebs]

Dudes!!!!

Why bother with a fill panel, fairdinkum, I've got a couple that I haven't even had the time to hook up

Two reasons.
1. Because I can
2. The challenge. Same reason I made my over-engineered o2 analyser
3. Convenience

Oops. That was 3. The third one is just an added bonus.