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Cheap Fridge Compressors!

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Cheap Fridge Compressors!

Unread postAuthor: jmadden91 » Mon Jul 27, 2009 3:08 am

Just been browsing Ebay and came across this, Fridge compressors for $9.99 american. Maybe a good alternative if you cant find an old fridge laying around etc

http://cgi.ebay.com/EMBRACO-VEGY-6H-134A-REFRIGERATOR-COMPRESSOR-NEW_W0QQitemZ390071848847QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item5ad2180f8f&_trksid=p3286.c0.m14#ht_3407wt_1167


Cheers
jmadden91
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Unread postAuthor: Mitchza89 » Mon Jul 27, 2009 3:19 am

God that's cheap. Oh, if only....

Thanks for the heads up mate. Good luck in finding one!

You can usually find old compressors pretty easily. A lot of refuge tips and rubbish tips hold old fridges after they've been thrown out due to their gas running out.

We have a couple of old fridges but my parents won't let me muck around with anything that uses 240V. Fair enough reason I guess.

....But only if they knew I was messing around with 400-500psi with the pumps I make :D

Oh ignorance is bliss!
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Unread postAuthor: jmadden91 » Mon Jul 27, 2009 3:22 am

Hahah yeh. Im going to get my neighbor (electrician) to wire mine up when i find one. Just thought this might interest some of the americans haha
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Unread postAuthor: Technician1002 » Mon Jul 27, 2009 3:31 am

Warning.. Read the specs.. 3 phase power.. This is a commercial unit. It won't run on home single phase power.
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Unread postAuthor: Mitchza89 » Mon Jul 27, 2009 3:33 am

You live next door to a sparky? Fantastic!

I can go one better. My step dad is a lisenced gas fitter





..............:D
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Unread postAuthor: jmadden91 » Mon Jul 27, 2009 3:51 am

hahahah thats sick.

@technician: Whoops sorry dont know what that is. Well a mod should delete this then lol
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Unread postAuthor: Mitchza89 » Mon Jul 27, 2009 4:00 am

I can't win though. He was a fitter and turner in the army for 20 years and so he hates what I do purely because he knows the potential of the power and the damage it can do in the wrong hands.

I mainly love making spuddie's because I love the mechanical side of things. I love more or less turning a pile of scrap and corroded plumbing parts into a beautifully polished peice of working machinery.

Don't mind my rant, had a few brews...

:D...
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Unread postAuthor: jmadden91 » Mon Jul 27, 2009 4:02 am

Haha on a monday night, very well done hahah. Yeh my parents dont like it either, but im exactly the same, I just like building stuff haha
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Unread postAuthor: inonickname » Mon Jul 27, 2009 4:17 am

3 Phase means you will need 3 phase wiring, whereas most housing will have single phase. Beware of that before buying.
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Unread postAuthor: jmadden91 » Mon Jul 27, 2009 4:19 am

Im not buying it mate, I live in Aus like you. I thought it might be interesting for the americans but seems its useless haha
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Unread postAuthor: Technician1002 » Mon Jul 27, 2009 4:23 am

jmadden91 wrote:hahahah thats sick.

@technician: Whoops sorry dont know what that is. Well a mod should delete this then lol


For those who don't know. US home power is single phase. 120/240. It is one hot and 1 neutral. The second hot in 240 is 180 degrees out of phase. (opposite polarity of the same phase)

In commercial power using 3 phase, there are 3 hots to ground. Each at 120 volts. (sometimes 480 volt for big stuff). Each phase is 120 degrees from each other, not just a polarity reversal of 180 degrees. Instead of 240 between hots, it is 208 volt.

3 phase power is 3 hot legs, each 120 volts to neutral and 208 volts between each leg. For motors this eliminates all need for start and run caps as a rotating magnetic field is created with the 3 phases. Efficiency and reliability is higher with fewer failure prone parts.

Sometimes shop tools come with 3 phase motors. To run them in a home shop, a rotary phase converter is used which is a single phase motor and 3 phase motor all wired into the same motor. 1 phase in and 3 phase out. They are big, noisy, and expensive.

http://www.phase-a-matic.com/RotaryDescription.htm

This page has prices.. :D You don't want to buy one to run a $10 fridge compressor.
http://www.americanrotary.com/rotary-phase-converters.html
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