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Propellant Feed System

Assembly

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 assemblies.
Propellant Feed System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat 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

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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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

Where the propellant feed system is used

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

Used in 4 assemblies

First Stage (Booster) Second Stage Reusable Booster Stage Second Stage

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
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