Pressurization System

Assembly

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High-pressure helium stored cold and metered down to keep the propellant tanks ullage-pressurised as they drain, holding pump inlet pressure above cavitation through the burn.

Direct parts	5
Total parts	38
Used in	1 assembly
Class	Assembly
Status	unverified

High-pressure helium stored cold and metered down to keep the propellant tanks ullage-pressurised as they drain, holding pump inlet pressure above cavitation through the burn. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Pressurization System parts and their functions

5 top-level parts · 38 parts in total · full bill of materials below

Pressurization System parts diagram: 1 COPV pressure vessel, 2 pressure regulator, 3 check valve, 4 helium line, 5 pressure sensor. 38 parts in 5 assemblies. — 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	COPV Pressure Vessel	4×	Cold helium bottles
2	Pressure Regulator	2×	Dome-loaded regulator stepping stored helium down to tank ullage pressure.
3	Check Valve	6×	One-way valve preventing propellant vapour backflow into the pressurant lines.
4	Helium Line	20×	Small-bore stainless line carrying high-pressure helium to the tank diffusers.
5	Pressure Sensor	6×	Transduces fluid or gas pressure into an electrical signal.

3D model

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Build & assembly graph

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Bill of materials for Pressurization System

5 top-level lines · 5 rows shown · 38 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	COPV Pressure Vessel	orbital-launch-vehicle-copv	4×	4	·	part
2	Pressure Regulator	orbital-launch-vehicle-pressure-regulator	2×	2	·	part
3	Check Valve	orbital-launch-vehicle-check-valve	6×	6	·	part
4	Helium Line	orbital-launch-vehicle-helium-line	20×	20	·	part
5	Pressure Sensor	pressure-sensor	6×	6	·	part

Where the pressurization system is used

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

Space Systems 2 Orbital Launch Vehicle, Reusable Launch Vehicle

Used in 1 assembly

Propellant Feed System

Sourcing: possible vendors

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