In a high pressure gas plant, hydrogen gas leaked through a flange on a non return valve located on a hydrogen inlet of a reactor. The leaking gas ignited.

Piping failed because of corrosion and a release of hydrogen occurred with an explosion. The fire lasted approximately 10 minutes, resulting in the shutdown of the hydrogen unit. Noise of the explosion was heard offsite for well over a mile. Some minor damage offsite.

This report consists of two events: B. On February 23, 2004., one person was injured, apparently lightly, in a fire that broke out following a hydrogen explosion, Herzliya Pituah, Israel An investigation into the incident suggested that the explosion occurred when a fork-lift truck pierced one of the gas cylinders. Everyone in the area was evacuated, and the surrounding rounds were closed to traffic for a period. A. On January 1, 2003, a similar incident occurred at the same factory , when one person was killed.