Fridge/freezer compressor?

[Monkey Mark]

A long shot here but, I don't suppose any of you work in the refrigeration trade or know where to get hold of some fridge/freezer compressors cheap?

 

[ChrisR]

I don’t know what you are going to use them for, but if you intend using them as air compressors they are not suitable.

They flog the oil out of the compressor discharge. In a closed refrigeration system this does not matter, as the oil is returned via the suction port.

Even if you continually kept the oil topped up, using as an air compressor, the air would be heavy with oil contamination.




Chris R

 

[Monkey Mark]

I don’t know what you are going to use them for, but if you intend using them as air compressors they are not suitable.

They flog the oil out of the compressor discharge. In a closed refrigeration system this does not matter, as the oil is returned via the suction port.

Even if you continually kept the oil topped up, using as an air compressor, the air would be heavy with oil contamination.




Chris R

Hi Chris,
Yes, that is exactly what it will be for. I had on loan a bambi silent compressor which I have had to give back just yesterday. Having it so quiet was great.

I understand about the oil. I have done quite a bit of reading and have some ideas regarding this. Including a filter pre accumulator and another post accumulator. I'll be using ATF oil so no issues with nasty chemicals and I'll not be doing any spraying.

Simply put, there's no way I can afford a bambi, Clarke, Jun_air etc compressor. So I'll build one myself. I will have to top up the oil and filter it out, but I think, for my situation at least, that the pros outweigh the cons.

Im due to pick up a tank only soon. I'll try using it as an extra with my noisy compressor (so I can fill during the day and use later) but think I'll end up going the fridge/freezer way. As long as I can get my hands on suitable compressors of course.

 

[Lons]

Last time I was there, the local recyling centre had a container full of fridge freezers

 

[mind_the_goat]

Suggest you ask the local recycling centre who decommissions their freezers, the whole point of recycling these is to extract the gas before ripping them apart. Of course one that is already compromised could be dismantled but you may struggle to convince the yard to let you have one.

 

[Wildman]

no chance at a recycling centre unless you have a waste carrier licence, stupid I know but there it is Big brother messes it up again.

 

[Lons]

no chance at a recycling centre unless you have a waste carrier licence, stupid I know but there it is Big brother messes it up again.

My is understanding is that the waste carrier licence is only required if you are a business, I had to have one but not now I'm retired and as long it's my own use only. May have changed of course as the bu**ers now charge you for taking domestic waste, annoying as all that will cause is more fly tipping.

Getting the parts from the operatives is of course another matter but often a few quid does the trick

Bob

 

[mind_the_goat]

no chance at a recycling centre unless you have a waste carrier licence, stupid I know but there it is Big brother messes it up again.

If that was the case then they would not be able to have the 'for sale' area that many of them do, no reason why you can;t ask them to sell you something from another area. However they are unlikely to sell Fridges and possibly other electrical stuff.

The decision to let the public roam around private recycling centres is a down to each site, in discussion with their insurers. A scrappy near me used to be happy to let Joe Public wander around their site on a Saturday, amongst the big cranes and cutting torches, however they suddenly stopped it, quoting H&S, I strongly suspect it was either just a business decision or the insurers deciding it was too risky.

 

[Schoka-Cola]

Join your local Freecycle/Freegle; there's always someone wanting to get rid of a fridge or a freezer, and mostly they're still working fine.