ST. LOUIS—Potter Electric Signal Co. recently introduced what it says is an industry first: a self-testing flow switch for wet sprinkler systems that requires no discharge of water. Mike Henke, ...
This month’s reader questions focus on sprinkler alarms. As it turns out, there is a lot of confusion over which NFPA rule — 13 or 72 — applies. Why does my local fire inspector think the fire alarm ...
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