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Discussion History

Cold Box

Assembly

Perlite-insulated steel enclosure housing the brazed exchangers and piping. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Cold Box parts and their functions

6 top-level parts · 7 parts in total · full bill of materials below
Cold Box parts diagram: 1 main heat exchanger, 2 reflux subcooler, 3 cold box shell, 4 perlite insulation, 5 joule-thomson valve, 6 cryogenic piping. 7 parts in 6 top-level items.
Cold Box parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Main Heat Exchanger 1× Brazed aluminum plate-fin main heat exchanger
2 Reflux Subcooler 1× Subcooler trimming reflux temperature
3 Cold Box Shell 1× Carbon steel cold box shell and structure
4 Perlite Insulation 1× Perlite insulation charge filling the shell
5 Joule-Thomson Valve 2× Joule-Thomson valves dropping pressure to make cold
6 Cryogenic Piping 1× Stainless and aluminum cryogenic interconnect piping

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Cold Box

6 top-level lines · 6 rows shown · 7 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Main Heat Exchanger nitrogen-rejection-unit-main-exchanger 1× 1 · part
2 Reflux Subcooler nitrogen-rejection-unit-subcooler 1× 1 · part
3 Cold Box Shell nitrogen-rejection-unit-cold-box-shell 1× 1 · part
4 Perlite Insulation nitrogen-rejection-unit-perlite-fill 1× 1 · part
5 Joule-Thomson Valve nitrogen-rejection-unit-jt-valve 2× 2 · part
6 Cryogenic Piping nitrogen-rejection-unit-cryo-piping 1× 1 · part

Where the cold box is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Nitrogen Rejection Unit

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks