September 20, 2012

Performance Related Concern with Chemetron Fire Systems Carbon Dioxide System Discharge Hose

  • Type of Notification: Performance Related Concern
  • FM Approval Status: FM Approved

Alert Summary

FM Approvals has been made aware of a potential issue with Chemetron Fire System’s Carbon Dioxide System Discharge Hose (P/N 50260263). The brass ferrule that attaches the male coupling to the hose may exhibit cracking that can cause the hose to fail under pressure.

Company Identity

Chemetron Fire Systems
c/o Kidde-Fenwal, Inc.
400 Main Street
Ashland, MA 01721

Contact Information

Mr. Richard Karadizian, Mechanical Engineering Manager.

Product Identity

Carbon Dioxide Extinguishing System.


½” Carbon Dioxide System Discharge Hose.


P/N 50260263

Nameplate Data


Hazard Involved

If the ½” Carbon Dioxide system discharge hose exhibits a crack along the length of the brass ferrule on either end, it may disconnect on discharge causing the fire suppression system to not operate properly for suppression. As set out in Chemtron’s Bulletin, this may also pose a life safety risk if Carbon Dioxide discharges into an occupied space.

Refer to the attached documents for further details regarding direction for inspection, identification and replacement.

Using This Product?

If you suspect that you are in possession of any of the affected equipment listed above bearing the FM Approvals certification marking, please bring it to the attention of: 

Robert Lovell

Norwood, MA, United States

+1 (1) 781-255-4820


Counterfeit Indicator

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    Figure 1A

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    Figure 1B

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    Figure 2A

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    Figure 2B

Figure 1. Bulletin #11-61C

Figure 2. Bulletin #12-25C