View Full Version : r504?
I cant find a ptchart for r504, can anyone hook me up ;) . Thanks!
Russell_hq
02-16-2005, 01:46 PM
Critical Properties Estimate:
Pressure: 628.55 psia
Temperature: 61.084 ºC
B.P. : -56ºC
http://www.russellpetrie.plus.com/images/Refrigerant_Properties/R504.gif
This is higher pressure than R410a with a slightly lower b.p.
hmmm looks like it may work in a single stage, thanks for the info!
Russell_hq
02-16-2005, 04:02 PM
It might, but if you can get this to work then R410a should be no problem ;)
blinky
02-16-2005, 08:39 PM
r504 = -57.7
r410a = -51.6
... id rather use r504....
IMO r13b1 is the best we can use though i havnt tested it. I need to get some :(
blinky
02-16-2005, 09:55 PM
IMO r13b1 is the best we can use though i havnt tested it. I need to get some :(
it has the same boiling point as r504
is it easier to work with or something?
it has lower condensing temps than r410a + a massive desnity
gkiing
02-16-2005, 10:43 PM
massive density = hard on compressors?
nope = better heat capacity
blinky
02-16-2005, 11:24 PM
nope = better heat capacitythen why would u even consider using r410a over 504?
Russell_hq
02-17-2005, 02:57 AM
R504 required approx 30-40psi more to compress compared to r401a
at 30ºC this corresponds to R504 308psia vs. R410a 275psia
if you go upto 40ºC you get R504 392 vs. R410a 352 psia
Now thats alot of pressure. You will need a good rotary design to work with high pressure gas, i.e.. thicker shell.
bxa121
02-17-2005, 09:17 AM
hey russell_hq, where are you getting thi sstuff from anyways?
got a web site or something.. i think i came across the same stuff sometime ago...
whats the price difference between 504 and 410a anyways?
Russell_hq
02-17-2005, 10:33 AM
Im using the NIST Refrigeration Properties Database,
You can get it from www.nist.gov
then why would u even consider using r410a over 504?
iu believe you meant r13b1 ;) . cuz i cant get any, its apparently onot in a fire exinguisher that was labeled halon 1301 (r13b1)