Ballast & Trim System

Assembly

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Variable ballast, trim, and droppable weights that set descent, hover, and ascent.

Direct parts	6
Total parts	78
Used in	1 assembly
Class	Assembly

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Variable ballast, trim, and droppable weights that set descent, hover, and ascent. 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

6 top-level parts · 78 parts in total · full bill of materials below

Ballast & Trim System parts diagram: 1 variable ballast tank, 2 trim tank, 3 droppable weight, 4 ballast blow valve, 5 ballast pump, 6 trim pump. 78 parts in 6 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.

#	Part	Qty	What it does
1	Variable Ballast Tank	2×	Steel hard tank flooded or blown with high-pressure air to change net weight.
2	Trim Tank	2×	Fore-and-aft tank whose water is shifted to hold pitch level.
3	Droppable Weight 2 parts	2×	Released to surface in an emergency
4	Ballast Blow Valve 3 parts	4×	Solenoid valve admitting high-pressure air to push water out of a ballast tank.
5	Ballast Pump 4 parts	1×	High-pressure positive-displacement pump that moves water against ambient pressure.
6	Trim Pump 4 parts	1×	Reversible pump that shifts water between fore and aft trim tanks.

3D model

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Build & assembly graph

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Bill of materials for Ballast & Trim System

6 top-level lines · 27 rows shown · 78 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Variable Ballast Tank	submersible-variable-ballast-tank	2×	2	·	part
2	Trim Tank	submersible-trim-tank	2×	2	·	part
3	Droppable Weight 2 parts	submersible-drop-weight	2×	2	2	assembly
3.1	Steel Ballast Shot	submersible-ballast-shot	1×	2	·	part
3.2	Release Electromagnet	submersible-release-magnet	1×	2	·	part
4	Ballast Blow Valve 3 parts	submersible-blow-valve	4×	4	3	assembly
4.1	Valve Body	submersible-valve-body	1×	4	·	part
4.2	Solenoid Actuator	submersible-solenoid	1×	4	·	part
4.3	O-Ring Set	oring-set	1×	4	·	part
5	Ballast Pump 4 parts	submersible-ballast-pump	1×	1	29	assembly
5.1	Pump Head	submersible-pump-head	1×	1	·	part
5.2	Servo Motor 4 parts	servo-motor	1×	1	24	assembly
5.2.1	Stator Assembly 3 parts + deeper ›	stator-assembly	1×	1	3	assembly
5.2.2	Rotor Assembly 4 parts + deeper ›	rotor-assembly	1×	1	19	assembly
5.2.3	Encoder	encoder	1×	1	·	part
5.2.4	Motor Housing	motor-housing	1×	1	·	part
5.3	Oil Seal	oil-seal	2×	2	·	part
5.4	Ball Bearing	ball-bearing	2×	2	·	part
6	Trim Pump 4 parts	submersible-trim-pump	1×	1	29	assembly
6.1	Pump Head	submersible-pump-head	1×	1	·	part
6.2	Servo Motor 4 parts	servo-motor	1×	1	24	assembly
6.2.1	Stator Assembly 3 parts + deeper ›	stator-assembly	1×	1	3	assembly
6.2.2	Rotor Assembly 4 parts + deeper ›	rotor-assembly	1×	1	19	assembly
6.2.3	Encoder	encoder	1×	1	·	part
6.2.4	Motor Housing	motor-housing	1×	1	·	part
6.3	Oil Seal	oil-seal	2×	2	·	part
6.4	Ball Bearing	ball-bearing	2×	2	·	part

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Where the ballast & trim system is used

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

Marine 1 Crewed Submersible

Used in 1 assembly

Crewed Submersible

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