Tank Pressurization System

Assembly

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Helium bottles and autogenous bleed lines that hold tank ullage pressure so the turbopumps never cavitate, plus vent valves that relieve boil-off between burns.

Direct parts	5
Total parts	14
Used in	1 assembly
Class	Assembly

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Helium bottles and autogenous bleed lines that hold tank ullage pressure so the turbopumps never cavitate, plus vent valves that relieve boil-off between burns. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Tank Pressurization System parts and their functions

5 top-level parts · 14 parts in total · full bill of materials below

Tank Pressurization System parts diagram: 1 helium COPV, 2 pressurization regulator, 3 vent & relief valve, 4 autogenous pressurization line, 5 o-ring set. 14 parts in 5 top-level items. — Tank Pressurization System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Helium COPV	4×	COPV helium bottles
2	Pressurization Regulator	2×	Pressure regulators
3	Vent & Relief Valve	2×	Vent & relief valves
4	Autogenous Pressurization Line	2×	Autogenous pressurization lines
5	O-Ring Set	4×	Line seals (reuse)

3D model

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Build & assembly graph

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Bill of materials for Tank Pressurization System

5 top-level lines · 5 rows shown · 14 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Helium COPV	rocket-upper-stage-helium-bottle	4×	4	·	part
2	Pressurization Regulator	rocket-upper-stage-press-regulator	2×	2	·	part
3	Vent & Relief Valve	rocket-upper-stage-vent-valve	2×	2	·	part
4	Autogenous Pressurization Line	rocket-upper-stage-autogenous-line	2×	2	·	part
5	O-Ring Set	oring-set	4×	4	·	part

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Where the tank pressurization system is used

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

Space Systems 1 Rocket Upper Stage

Used in 1 assembly

Rocket Upper Stage

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

Vendor	HQ	Specialty	MOQ	Lead 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