FM Approvals has been made aware of a potential issue with Kidde Pre-Engineered Industrial and Vehicle Suppression Systems. Some fusible plug cores have been found to creep outward resulting in premature reduction of the factory-filled 360-psi pressurized cylinders.
Kidde Fire Systems
c/o Kidde-Fenwal, Inc.
400 Main Street
Ashland, MA 01721, USA
Sentinel™ Vehicle Dry Chemical System
Sentinel Vehicle Wet Chemical System
KVS™ Vehicle System
IND™ Industrial Dry Chemical System
Cylinder valve assemblies utilizing a fusible plug as a pressure relief device.
Refer to the PDF for further details.
A suppression system with one or more cylinders not at the factory-filled set pressure will be potentially ineffective in the case of a fire incident.