Airbus 34900008-2 Fire Extinguisher Bottle Unit

Module Feature

34900008-2 is a pressurized fire extinguisher cylinder for Airbus A340-642 aircraft fire protection system.

It is a sealed pressure vessel filled with aviation fire suppression agent, equipped with burst disc, discharge valve and pressure monitoring interface. It releases extinguishing agent rapidly when triggered by the fire control circuit. It belongs to ATA Chapter 26 fire protection components, follows aerospace airworthiness standards, and is used for aircraft engine bay or cargo compartment fire suppression.

Working principle

When the fire control system sends out a discharge signal, the firing pin breaks the burst disc inside the valve assembly.

The internal pressure pushes the fire suppression agent out through the discharge pipeline to the protected fire zone. Once discharged, the bottle must be replaced and refilled by an approved overhaul station.

Onboard components

High strength alloy pressure cylinder, fire suppression agent, safety burst disc, discharge valve assembly, pressure indicator port, mounting lugs.

LED indicators

No built-in LED. Pressure status and discharge state are monitored by aircraft fire control panel and pressure indicator.

Hardware self‑diagnosis

No built-in self-diagnosis circuit. Regular hydrostatic pressure test and visual inspection are required to check cylinder corrosion, deformation and leakage.

Programming software

No supporting configuration software.

Electrical & Process Parameters

Model:34900008-2 Brand:Airbus Device type:Pressurized aircraft fire extinguisher bottle Function:Aircraft engine / compartment fire suppression

Mechanical & Structure

Mounting:Aircraft structure bracket fixed installation

Protection class:Pressure vessel, sealed assembly

Housing:High strength aerospace alloy cylinder

Environmental

Operating temperature:-55℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:EASA, FAA airworthiness approved

Status:Original Airbus aircraft fire protection spare

Installation

Secure the bottle to the designated aircraft bracket.

Connect discharge tubing, pressure sensing line and firing circuit wiring. Verify valve sealing and interlock condition before aircraft return to service.

Interface

Agent discharge port, firing connector, pressure check port, mounting lug.

Diagnostic

Pressure low: Slow gas leakage at valve or seal interface. Failed to discharge: Broken firing circuit or blocked valve. External corrosion: Damaged surface coating, needs inspection and overhaul.

Product Brief

Airbus 34900008-2 pressurized fire extinguisher bottle, airworthiness certified fire suppression cylinder for A340-642 aircraft fire protection system replacement.