BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Ballast & Trim System

Assembly

Main ballast tank vents and emergency blow flasks for gross buoyancy, plus trim and drain pumps, the hydraulic plant and piping that move water between tanks to hold neutral buoyancy and zero bubble. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Ballast & Trim System parts and their functions

9 top-level parts · 4,351 parts in total · full bill of materials below
Ballast & Trim System parts diagram: 1 ballast tank vent valve, 2 high-pressure air flask, 3 trim pump, 4 drain pump, 5 hydraulic power plant, 6 control-surface ram, 7 pipe spool, 8 plant valve, 9 pipe hanger. 4,351 parts in 9 top-level items.
Ballast & Trim 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 Ballast Tank Vent Valve 14× Main ballast tank vent valves
2 High-Pressure Air Flask 14× 310 bar emergency blow flasks
3 Trim Pump 2× Pump that shifts water between forward and aft trim tanks to control fore-and-aft attitude submerged.
4 Drain Pump 2× Bilge and drain pumps
5 Hydraulic Power Plant 5 parts 1× Main hydraulic power plant
6 Control-Surface Ram 6× Rudder, stern-plane and bow-plane rams
7 Pipe Spool 1400× Trim, drain and blow piping
8 Plant Valve 380× Shock-qualified globe, gate, check or relief valve; a submarine carries thousands across its fluid systems.
9 Pipe Hanger 2400× Resilient, shock-rated pipe support that also isolates pipe-borne vibration from the hull.

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

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

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Ballast & Trim System

9 top-level lines · 14 rows shown · 4,351 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Ballast Tank Vent Valve attack-submarine-mbt-vent-valve 14× 14 · part
2 High-Pressure Air Flask attack-submarine-air-flask 14× 14 · part
3 Trim Pump attack-submarine-trim-pump 2× 2 · part
4 Drain Pump attack-submarine-drain-pump 2× 2 · part
5 Hydraulic Power Plant 5 parts attack-submarine-hydraulic-plant 1× 1 133 assembly
5.1 Hydraulic Pump attack-submarine-hydraulic-pump 2× 2 · part
5.2 Hydraulic Accumulator attack-submarine-accumulator 4× 4 · part
5.3 Hydraulic Valve Block attack-submarine-hydraulic-valve-block 6× 6 · part
5.4 Hydraulic Reservoir attack-submarine-reservoir 1× 1 · part
5.5 O-Ring Set oring-set 120× 120 · part
6 Control-Surface Ram attack-submarine-control-surface-ram 6× 6 · part
7 Pipe Spool attack-submarine-pipe-spool 1400× 1,400 · part
8 Plant Valve attack-submarine-plant-valve 380× 380 · part
9 Pipe Hanger attack-submarine-pipe-hanger 2400× 2,400 · part

Something wrong in this list? Report a problem with this BOM.

Where the ballast & trim system is used

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

Used in 1 assembly

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.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
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