Cryogenic hoses (vacuum insulated)

[harsh234]

Please guide me to manufacture the vacuum insulated hose for liquid nitrogen
size - 1/2"
Pressure - 50 bar
temp - (-190 deg cel)

Should i take two sizes of SS bellow and weld it and create vacuum inside the cavity of the two hoses.
Or is there any simple method for this??
or simply 'Foamglas' insulated hose will work with same efficiency??

 

[EdStainless]

Buy this hose, don't try to make it.
These are commercially available.

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P.E. Metallurgy, Plymouth Tube

 

[harsh234]

Actually I am unable to find this type of hose in India. So is there any cheapest solution for this, like taking nylon/PTFE hose and insulating it externally.
Please help.

 

[harsh234]

Pressure can be 15 bar.

 

[cloa]

https://dir.indiamart.com/impcat/cryogenic-pipe.html

http://www.eng-tips.com/threadminder.cfm?pid=1529

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[ampis]

Inox India Pvt Limited manufactures these hoses. You may contact them accordingly.
Other insulation such as foam, PTFE would not provide you the same efficiency as that of Vacuum Super Insulated Hose pipes.

http://www.inoxindia.com/