About rupture accident of simple aerosol fire extinguisher

Last Updated March 12, 2019

In a house in Yokohama city, a rupture of a simple aerosol fire extinguisher manufactured by Yamato Protec Co., Ltd. occurred. This product is classified as a manufacturer's voluntary recall.

Information on defects with the product has been announced on the Fire Bureau website for a long time. If you have a simple aerosol fire extinguisher, please check the product you have. In that case, please visit the manufacturer website below or contact the customer consultation desk (0120-8084).

Yamato Protec Co., Ltd. Website: （http://www.yamatoprotec.co.jp/ (external site)）

In addition, check the quality assurance period displayed on the bottom of the canned, and contact the manufacturer for items that have expired or disposed of.

Accident Overview

Accident Overview
Date of occurrence	Accident Overview	Remarks
August 7, 2010	Of the two simple aerosol fire extinguishers that were placed side by side on the kitchen table, one burst and fell on the kitchen floor, and the other was deformed.	FM Boy K4423 (Rupture) FM Boy K3406 (Deformation)
August 10, 2010	A simple aerosol fire extinguisher placed on the kitchen floor suddenly burst with a loud noise, and a fire extinguishing agent splattered on the floor	Yamato Boy KTKD317
August 22, 2010	When the family went to the kitchen, the fire extinguisher had exploded when the family went to the kitchen, the simple aerosol fire extinguisher had exploded. A part of the window glass was also damaged, so the fire department was contacted.	Yamato Boy KTK2420
August 28, 2011	When a family member went to see the rupture sound in the kitchen, the simple aerosol fire extinguisher stored in the color box burst and became dirty with a fire extinguishing agent that splattered the room.	Yamato Boy KTK2420
March 4, 2012	Looking back at the living room on the first floor, I heard a burst sound, aerosol-type fire extinguisher placed on the floor beside the storage rack burst and all the fire extinguishing agents were released.	Yamato Boy KTK3407
May 27, 2012	When a family member came home and tried to go to the kitchen, a simple aerosol fire extinguisher placed on the kitchen floor burst.	FM Boy kKN322
May 27, 2012	When a family member got up and went to the kitchen, it was found that the aerosol fire extinguisher placed on the floor had burst.	Yamato Boy KTK0331
June 11, 2013	When a family member was in the living room, there was a rupture sound in the kitchen, and when it was confirmed, the aerosol fire extinguisher had burst.	Manufacturing lot number, etc. manufactured by Yamato Protec Co., Ltd.
July 29, 2014	When a family member was washing in the kitchen, there was a loud noise of "bon" and looked back, the aerosol fire extinguisher burst.	FM boy k1425
August 17, 2014	An aerosol fire extinguisher in a hot water supply room in community hall had burst.	Yamato Boy KTK3407

Applicable aerosol fire extinguisher

（１） Manufacturers: YAMATO PROTEC CORPORATION
（２） Product name

Yamato Boy KT
FM Boy K

（３） Appraisal number: Exemption No. 13-14
（４） Manufacturing: From November 2013 to July 2014
(Quality assurance period): （２００５・０１）～（２００５・１０）
（５） Number of sales: 184,000 bottles

Photo of aerosol type fire extinguisher Yamato Boy KT
Yamato Boy KT

Photographs of fire extinguisher FM Boy K
FM Boy K

Causes and precautions for accidents

According to Yamato Protech Co., Ltd., two types of simple aerosol fire extinguishers, Yamato Boy KT and FM Boy K, are subject to liquid leakage, cracks and rupture due to internal corrosion due to defects in the manufacturing process. It has been found that there is a possibility. This product has been called for disposal since July 2005 and has been voluntarily collected since November 2006.

In addition, if it is installed as it is without disposal, the inner surface of the container will be corroded and a rupture accident may occur.

Rupture situation of simple aerosol fire extinguisher