What is Tube Type Automatic Fire Extinguisher System?
Pri-safety tube automatic fire extinguisher consists of a heat sensitive tube which is sealed at either end with stainless steel fittings. The tube acts as both the storage medium and as the fire detector. The tube is unaffected by temperaturesof up to 100/120 Degrees Centigrade but fire is of course much hotter and will cause the tube to burst, immediately extinguishing any nearby flames.
The detection tube is filled with clean agent which is almost odourless discharges as a liquid instantly dispersing in the form of a gas and leaves no residue. Importantly the fluid itself does not conduct electricity or cause thermal shock damage. Comparing with powder or foam agent,you get the additional benefit that after use there is no extinguishant residue and consequently none of the
cleanup cost associated with foam and powder.
The system requires no maintenance during its entire working life. It can be installed by any competent individual, and thus no training is required for installation.
This product is a self-contained, passive fire suppression system designed specifically for vehicle engine bays and electrical panels. It does not require any human intervention to activate.
It can be categorized by application into vehicle automatic fire extinguisher tube and electrical cabinet automatic fire extinguisher tube.
Why we need it?
We need it for proactive, instantaneous protection where fires start quickly and can cause catastrophic loss. Unlike manual extinguishers that require human discovery and reaction, this system acts autonomously.
Its core advantage is speed. The heat-sensitive tube bursts at the fire's source within seconds, suppressing flames during the critical initial stage-often before an alarm even triggers.
This is vital for:
Unattended Risks: It protects vehicles and electrical cabinets 24/7, even when no one is present, preventing a small fault from becoming a total loss.
High-Value Assets: It safeguards expensive equipment, classic cars, and data centers from irreparable fire damage.
Passive Reliability: As a mechanical system needing no power or wiring, it is fail-safe and maintenance-free.
Working Principle
The tube contains pressurized clean extinguishing agent and is sealed with a stainless steel fitting.
The tube is designed to remain stable at specific temperatures, but in actual fires, the high temperatures can cause the cleaning agent inside to vaporize, increasing the internal pressure and potentially causing the pipe to burst and eject the vaporized extinguishing agent.
Comparison with traditional fire extinguishers
| Feature | Tube-Type Automatic Extinguisher | Traditional Portable Extinguisher |
| Activation | Automatic, by heat | Manual, by person |
| Speed | Extremely fast (seconds) | Slower (requires human reaction) |
| Operation | Mechanical, no power needed | Manual, requires user action |
| Coverage | Targets Engine bay/Electrical Panel specifically | Depends on user aim and access |
| Best For | Stopping a fire at its source | Cabin fires, helping others, secondary use |
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