Propellant Feed System

Assembly

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Downcomers, manifolds and valves delivering propellant from the tanks to the engine inlets at the required net positive suction pressure.

Direct parts	6
Total parts	2,461
Used in	4 assemblies
Class	Assembly

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Downcomers, manifolds and valves delivering propellant from the tanks to the engine inlets at the required net positive suction pressure. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Propellant Feed System parts and their functions

6 top-level parts · 2,461 parts in total · full bill of materials below

Propellant Feed System parts diagram: 1 propellant feed line, 2 propellant valve, 3 pogo accumulator, 4 pressurization system, 5 fill & drain valve, 6 duct flange joint. 2,461 parts in 6 top-level items. — Propellant Feed 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	Propellant Feed Line	4×	LOX downcomer and fuel manifolds
2	Propellant Valve	14×	Prevalves and isolation valves
3	Pogo Accumulator	1×	Gas-charged accumulator on the LOX line that detunes the feed system from the structure’s longitudinal modes, suppressing pogo oscillation.
4	Pressurization System 5 parts	1×	Helium pressurant supply
5	Fill & Drain Valve	4×	Ground fill and drain
6	Duct Flange Joint	2400×	Bolted, sealed duct flanges

3D model

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Build & assembly graph

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Bill of materials for Propellant Feed System

6 top-level lines · 11 rows shown · 2,461 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Propellant Feed Line	orbital-launch-vehicle-feed-line	4×	4	·	part
2	Propellant Valve	orbital-launch-vehicle-propellant-valve	14×	14	·	part
3	Pogo Accumulator	orbital-launch-vehicle-pogo-accumulator	1×	1	·	part
4	Pressurization System 5 parts	orbital-launch-vehicle-pressurization-system	1×	1	38	assembly
4.1	COPV Pressure Vessel	orbital-launch-vehicle-copv	4×	4	·	part
4.2	Pressure Regulator	orbital-launch-vehicle-pressure-regulator	2×	2	·	part
4.3	Check Valve	orbital-launch-vehicle-check-valve	6×	6	·	part
4.4	Helium Line	orbital-launch-vehicle-helium-line	20×	20	·	part
4.5	Pressure Sensor	pressure-sensor	6×	6	·	part
5	Fill & Drain Valve	orbital-launch-vehicle-fill-drain-valve	4×	4	·	part
6	Duct Flange Joint	orbital-launch-vehicle-flange-joint	2400×	2,400	·	part

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Where the propellant feed 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 4 assemblies

First Stage (Booster) Second Stage Reusable Booster Stage Second 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