Orifice selection

[frostedflake]

Hey mates!

:cool:
just wanted to know what are the basic principles for orifice selection in refrigeration systems.

i'm googling some info but no specific luck.

thanks in advance

[Brian_UK]

When selecting a TXV I follow the manufacturers' guides, such as...

http://sporlan.jandrewschoen.com/10-9.pdf

or pick an instruction document...

http://sporlan.jandrewschoen.com/tevs.shtm

[glenn1340]

When selecting a TXV I follow the manufacturers' guides, such as...

http://sporlan.jandrewschoen.com/10-9.pdf

or pick an instruction document...

http://sporlan.jandrewschoen.com/tevs.shtm

Good link there Brian, thanks.

[powell]

I think your looking for the distributor nozzles. Follow this link and click on the "Heatcraft IOM's" selection. Page 7 and 8 has the charts for the most popular Sporlan brand distributors.

http://www.hvacrinfo.com/loadcalcs.htm

[frostedflake]

thanks so much for the links, sporlan's booklet on operation theory really was useful.


and heatcrafts manual was just what i was looking for

thanks again

[DEVIL]

You can also use the Danfoss selection software for thermo/electronic expansion valves and cap tube

http://www.danfoss.com/BusinessAreas/RefrigerationAndAirConditioning/Product+Selection+Tools+Details/CoolCat.htm

Here in Romania we mainly use Danfoss expansion devices and the software work's like a charm

[bill1983]

i'll back that up mr devil.
simples!