Explosion during hydrogen transfer between a CGH2 tube trailer and a stationary storage

[Note of HIAD event validator: the event is based on two sources. The online specifies that the affected tank was a LH2 tanker. The PHMSA report, almost empty, reports a compressed hydrogen load. More cretibility shall be given to the PHMSA report].

An explosion occurred on a tank truck whilst transferring hydrogen to a stationary storage tank. The explosion occurred near the discharge valve of the truck injuring two people and starting a fire at the point where the hydrogen was leaking from the damaged valve.

The fire was too big for the fire brigade to keep it under control. The fire could be extinguished only by approaching the site and manually closing another valve.

Both the stationary tank and the tank on the truck were not affected by the fire.

The INITIATING cause was the failure of a valve causing the release of hydrogen.
The root cause is unknown.

discharge valve

The PHMSA report does not report injuries or damage.

Residents, school children and business people over a 2-square-block area were evacuated during
the 7-hour emergency.
According to the UPI new, the fire brigade was called away because of the danger and were powerless to stop the leak or the fire.

upon the arrival of he truck owner, and under his leadership, a 11-man team approached the to the burning truck and succeeded in closing a valve on the truck that transferred the hydrogen into the tanker, suffocating the fire. The tanker was moved then a distance of about 50 feet from the storage tank.

Firefighters called the job 'extremely dangerous.'