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Environment Environment
September 30, 2011

Halon collecting and refilling unit newly established in the
Himeji Factory of Iwatani Industrial Gases Corporation
- Along with Gyoda City, Saitama Pref., 2 bases in the east and west to meet growing demand -

Iwatani  Corporation 


Iwatani Corporation (Head office: Tokyo and Osaka, President: Akiji Makino, Paid-in-capital: 20 billion yen) has established a halon collecting and refilling unit in the Himeji Factory of the Iwatani Industrial Gases Corporation in Himeji City, Hyogo Pref. which started operation at the end of July.

Halon, a fire extinguishing gas, is also an ozone-depleting substance and its production has been banned by the Montreal Protocol since the end of 1993. However, it has wide-ranging uses such as in communication and electronic processing facilities and multistory parking lots, etc., due to its excellent extinguishing ability. Since the end of March, 2009, inspections of container valves of halon extinguishing equipment which has been installed for more than 15 years has been required due to the amendment of the Fire Defense Law. Halon gas must be firstly collected from the existing container for inspection and refilled once the container valve inspection is complete.

The new unit uses, in principle, a method whereby no gas is emitted into the air and with a collection rate exceeding 99.9%, making it the highest in Japan.
Iwatani has already engaged in similar operations in the Gyoda Factory located in Gyoda City, Saitama Pref. Commencing operations in the Himeji Factory as its western base, Iwatani will meet future growing demand for halon collection and refills from both its western and eastern bases.


<Unit overview>
Location: Himeji Factory, Iwatani Industrial Gases Corporation, 3-2-3 Kanbee-cho, Otsu Ward, Himeji City, Hyogo Prefecture, Japan
Capacity: 1.5t/day (approx. 450t annually)



Distillation and purification unit for collected halon gas


Recovery and refilling unit for halon gas collected from existing containers