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View Full Version : Another simple cascade (r507/r508)


Unseen
05-12-2006, 10:25 AM
I wanted to make a quiet+powerfull cascade. So here it is.

First stage Aspera 1/2hp
Second stage 3/8hp
Gases:r507/r508
Elevens evap
3m hx made of flex hose
Custom oil separator
Solenoid

http://img82.imageshack.us/img82/3069/pic14qw.jpg (http://imageshack.us)
http://img169.imageshack.us/img169/2064/hpim23637wa.jpg (http://imageshack.us)
http://img288.imageshack.us/img288/443/hpim23783zx.jpg (http://imageshack.us)
http://img101.imageshack.us/img101/783/hpim23799uk.jpg (http://imageshack.us)

Now i am waiting a metal lid(i think this is the right word?)
I have to finish the electronics(swithes etc...)
I will update soon...

Bye
christos
fatty
05-12-2006, 10:58 AM
Congrats christos very nice looking unit even better temps :toast:
cold_ice
05-12-2006, 11:28 AM
You use the solenoid valve for oil return?`How do you control it?
Looks good, I like it. And great temps too.
maverik-sg1
05-12-2006, 11:48 AM
Great job, my new single stage will be set-up in a similar way (teh oil return that is).

so 507 and 508?

Man 508 is an expensive gas - would it be the best gas to use in single stage units (temps and quiet?).

Cheers

Mav
Unseen
05-12-2006, 12:43 PM
u cant use r508 in single stage. It is a high pressure gas.

@cold_ice
It is nothing complicate...When u give 220v, it opens. So simple :)
LeSnip3R
05-12-2006, 12:47 PM
GG Unseen :clap:
Nice job as ever :slobber:

Can you give me some information on you cascade ?
A 3/8HP is sufficient for 2d stage ? It's "only" 12cc...
How much can it take on load ?

In fact I've a 12 000 btuh comp for 1st stage, but don't know what to put on the second stage...:(
Jort
05-12-2006, 04:59 PM
Great job, my new single stage will be set-up in a similar way (teh oil return that is).

so 507 and 508?

Man 508 is an expensive gas - would it be the best gas to use in single stage units (temps and quiet?).

Cheers

Mav

lol oil return on a single stage :stick:

and 508 will blow your mind:toast:
proth
05-12-2006, 07:59 PM
Dude, I love the way you seem to hammer these out.....effortlessly
hatemi
05-13-2006, 12:20 AM
12cc is enough for second stage. If the first stage is powerfull enough then -90c(-83c with 180w) loaded is doable with that size second stage.
jinu117
05-13-2006, 12:33 AM
Heh... this is really nice. What I had in mind was small nf9fx cascade for next one... :) Not looking for awseom load temp but something nice for decent benchies... -80c loaded probably :) Going to steal your ideas for looping, etc :) So nicely done :)