Fire extinguisher fails during pressure testing

What happened?

The extinguisher, rated to 2900 psi was being tested to a pressure of 4351 psi.

The incident occurred when the test pressure reached 2842 psi.

The extinguisher was 13 years old. No one was harmed.

The failure occurred under test conditions, and no personnel were nearby to be injured.

The hydrostatic test was a scheduled 5-year test carried out as per the company’s planned maintenance program.

failure of fire extinguisher cylinder during hydrostatic pressure testing

Ruptured fire extinguisher

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