Retardant Tank & Drop System parts and their functions

7 top-level parts · 142 parts in total · full bill of materials below

#	Part	Qty	What it does
1	Retardant Tank 4 parts	1×	Internal tank holding water or retardant.
2	Drop Door	4×
3	Drop Door Actuator	4×
4	Water Scoop 3 parts	2×	Retractable probe that refills the tank skimming a lake.
5	Foam Injection Unit 3 parts	1×	Meters foam concentrate into the water flow.
6	Drop Control Computer 4 parts	1×	Sets drop volume, coverage level, and door timing.
7	Tank Vent System	1×

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Bill of materials for Retardant Tank & Drop System

7 top-level lines · 21 rows shown · 142 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Retardant Tank 4 parts	aerial-firefighting-tanker-tank	1×	1	10	assembly
1.1	Tank Shell	aerial-firefighting-tanker-tank-shell	1×	1	·	part
1.2	Anti-Slosh Baffle	aerial-firefighting-tanker-baffle	6×	6	·	part
1.3	Tank Level Sensor	aerial-firefighting-tanker-level-sensor	2×	2	·	part
1.4	O-Ring Set	oring-set	1×	1	·	part
2	Drop Door	aerial-firefighting-tanker-drop-door	4×	4	·	part
3	Drop Door Actuator	aerial-firefighting-tanker-door-actuator	4×	4	·	part
4	Water Scoop 3 parts	aerial-firefighting-tanker-scoop	2×	2	3	assembly
4.1	Scoop Probe	aerial-firefighting-tanker-scoop-probe	1×	2	·	part
4.2	Scoop Actuator	aerial-firefighting-tanker-scoop-actuator	1×	2	·	part
4.3	Scoop Check Valve	aerial-firefighting-tanker-check-valve	1×	2	·	part
5	Foam Injection Unit 3 parts	aerial-firefighting-tanker-foam-injection	1×	1	3	assembly
5.1	Foam Concentrate Tank	aerial-firefighting-tanker-foam-tank	1×	1	·	part
5.2	Foam Metering Pump	aerial-firefighting-tanker-foam-pump	1×	1	·	part
5.3	Foam Flow Meter	aerial-firefighting-tanker-foam-meter	1×	1	·	part
6	Drop Control Computer 4 parts	aerial-firefighting-tanker-drop-controller	1×	1	114	assembly
6.1	Bare PCB	pcb-bare	1×	1	·	part
6.2	Microcontroller	mcu	1×	1	·	part
6.3	SMD Passive (R/C/L)	smd-passives	100×	100	·	part
6.4	Connector	connector	12×	12	·	part
7	Tank Vent System	aerial-firefighting-tanker-vent-system	1×	1	·	part

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Where the retardant tank & drop system is used

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

• Firefighting & Emergency 1 Aerial Firefighting Tanker

Used in 1 assembly

Aerial Firefighting Tanker

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