Henry 5181 Helical Oil Sep

[sdumper]

Helical Oil Separator in a cascade using 2nd stage rotary and ethelyn...

I have not used a Helical oil separator before and wanted to try one. Does anyone have any experience using one with a cascade and a rotary compressor?

http://www.refrigeration.lt/static/files/Oil%20separator%20AC%20%20R%20Helical.pdf

[[XC] gomeler]

Helical oil separators are the more effective than coalescing oil separators. If you find a few let me know, I'm searching for nice oil separators :cool:

[sdumper]

They look cool anyway :)

I'll pm you Chris.

[teyber]

thats a really nice oil sep. Its so small and its floated

[sdumper]

The only thing that concerns me is this:

Applications
Helical oil separators can be used in a wide variety of applications.
Common applications include multi-compressor racks and remote
condensing units.
Helical oil separators are intended for Low Pressure Oil Management
Systems. These products are designed for use with scroll and
reciprocating type compressors. They are not recommended for screw
or rotary vane compressors.
The standard product range is designed for use with HCFC and HFC
refrigerants, along with their associated oils. The SN range is suitable for
use with HCFC, HFC and ammonia refrigerants. The SH high-pressure
range is intended for R410A and sub-critical CO2 applications.

[teyber]

hmm chilly1 used those in his builds if i remember and so did a fellow named sneil you can do a search on their threads mebe?

[EvoCarlos]

DM cascades got one there tiny and work:)

[sdumper]

enough said thanks guys

[august123]

when i saw this thread i remember about that oilsep i got a few weeks ago. And yes, it`s a helical oilseperator :up:
But a really huge one, on the left is maneurop MT50 Compressor of 4 Stage unit

http://www.extremecooling.de/forum/attachment.php?attachmentid=6700&stc=1&d=1252402806

[[XC] gomeler]

Hahahaha that is a gigantic oil separator.

Wish I could power some of those huge compressors you guys are using lately. The shells just look beautiful, maybe I can stuff a 1hp 110v rotary INSIDE of the shell and pretend it is a working maneurop.

[mEsUsah1]

I'm just curious... Why do you need oil seperators in so small builds? My experience is that if you chose the right oil and have the corect drain from the evaporator this should not be nessesary in small builds...

[sdumper]

I'm just curious... Why do you need oil seperators in so small builds? My experience is that if you chose the right oil and have the corect drain from the evaporator this should not be nessesary in small builds...

Because im using POE in the second stage and dont want it to freeze...

[mEsUsah1]

ok. makes sense :P what evaporator pressure/temp do you intend to use? I'm not so experienced with the use of oil with natural refriderants. Is POE the only oil that can blend with ethelyene?

[tiborrr]

I think AB might be fine too. Can someone confirm AB oil compatibility with R-1150?

[sdumper]

ok. makes sense :P what evaporator pressure/temp do you intend to use? I'm not so experienced with the use of oil with natural refriderants. Is POE the only oil that can blend with ethelyene?

Other oils will work with ethelyn but POE is what I am using.

[[XC] gomeler]

ok. makes sense :P what evaporator pressure/temp do you intend to use? I'm not so experienced with the use of oil with natural refriderants. Is POE the only oil that can blend with ethelyene?

Mineral oil is carried by hydrocarbons incredibly well.. almost too well :yepp:

[teyber]

I think AB might be fine too. Can someone confirm AB oil compatibility with R-1150?

someone correct me if im wrong

but any refrigerant that works with mineral will work with ab, only ab is better ive read. better in what ways? idk lol :shrug:

and ethylene works with mineral so i pretty positive it works with ab

[mEsUsah1]

i guess the best thing would be to have a oil that blend as little as possible on low-temp aplications, so you seperate as much oil as possible from the sycle. And don't have to worry about oil freezing in the evaporator. it's dificult to find blend diagrams for hydrocarbons. Kind of untuched teretory in the refridgeration industri... Anyone got some?

[piotres]

I just want to say that I have in past 2 used S5181 by AC&R bought from Cold_Ice and one work fine , but second crashed after some hours of work with aspera ne2134GK compressor and R1150 - started to let pressure come throught oil-back line :confused: (damaged float) . I scrapped it, I mean I have in laying on shelf, not used anymore :shakes:.

[sdumper]

I just want to say that I have in past 2 used S5181 by AC&R bought from Cold_Ice and one work fine , but second crashed after some hours of work with aspera ne2134GK compressor and R1150 - started to let pressure come throught oil-back line :confused: (damaged float) . I scrapped it, I mean I have in laying on shelf, not used anymore :shakes:.

Wow really? Thats an expensive part to scrap. Do you think it was defective or damaged in use?

[mEsUsah1]

I just want to say that I have in past 2 used S5181 by AC&R bought from Cold_Ice and one work fine , but second crashed after some hours of work with aspera ne2134GK compressor and R1150 - started to let pressure come throught oil-back line :confused: (damaged float) . I scrapped it, I mean I have in laying on shelf, not used anymore :shakes:.
Must be a pruduction fault. or maby the oil seperator isn't designed to handle the condensing pressure you used... What condensing pressure did the compressor run on?

[sdumper]

Must be a pruduction fault. or maby the oil seperator isn't designed to handle the condensing pressure you used... What condensing pressure did the compressor run on?

I set my cut out control to trip at 250psi but when in normal use my pressure never gets close to that.


But they are rated up to 410psi operating so pressure shouldnt be an issue.

[piotres]

Discharge pressure wasn't higher than 15 bara for sure during testes . Oilsep crashed after time of using it, it wasn't production fault .

IIRC Reggie (chilly1) wrote that in PAST (long time ago) one S5181 was also damaged during using of his cascade - he wrote about broken float also .

[sdumper]

Discharge pressure wasn't higher than 15 bara for sure during testes . Oilsep crashed after time of using it, it wasn't production fault .

IIRC Reggie (chilly1) wrote that in PAST (long time ago) one S5181 was also damaged during using of his cascade - he wrote about broken float also .

How did you troubleshoot the problem? I mean how did you eventually track it down to the bad float?

I will be using one and would like to know what to watch out for in case it happens to me.

[piotres]

If You will use brand new S5181 I trully think You want be having problems like that ;).

High suction pressure, low discharge pressure, and don't holding bigger heatload even with high suction pressures - those can show that sth is wrong with oilsep .

Good luck :)

Regards

[sdumper]

If You will use brand new S5181 I trully think You want be having problems like that ;).

High suction pressure, low discharge pressure, and don't holding bigger heatload even with high suction pressures - those can show that sth is wrong with oilsep .

Good luck :)

Regards

Hmm Im having low -30 psig and low disharge 50 psig and bad evap teamp...

http://www.xtremesystems.org/forums/showpost.php?p=4038563&postcount=53

I was thinking that maybe i had some water in my line but now im worried that maybe its the oil sep. What size return line from the oil sep to suction were you using?

[[XC] gomeler]

Hmm Im having low -30 psig and low disharge 50 psig and bad evap teamp...

http://www.xtremesystems.org/forums/showpost.php?p=4038563&postcount=53

I was thinking that maybe i had some water in my line but now im worried that maybe its the oil sep. What size return line from the oil sep to suction were you using?

That is a clog in the system. If you are pegging out on vacuum and dropping in discharge pressure it means the system isn't circulating. If the oil separator was malfunctioning you would have high suction and typical to high discharge pressures as the system short circuited through the oil separator, bypassing the HX. Oil return lines can be whatever you want to use, for a floated oil separator 1/4" would be a good option or a very short large bore capillary.

[sdumper]

gomeler;4040779']That is a clog in the system. If you are pegging out on vacuum and dropping in discharge pressure it means the system isn't circulating. If the oil separator was malfunctioning you would have high suction and typical to high discharge pressures as the system short circuited through the oil separator, bypassing the HX. Oil return lines can be whatever you want to use, for a floated oil separator 1/4" would be a good option or a very short large bore capillary.


Still thinking it may be oil related and the reason why was I had liquid oil flooding out of the return on the oil sep when I installed it. This may be because it was precharged and when I charged with 4 ounces of POE on top it overfilled the oil sep. What I may be doing is flooding my cap with oil...

Lets see how it behaves after I recharge after the deep vacuum I just did.

Im just glad im not wasting r1150 :)