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FM Approvals 1041
- Alarm Check Valves
- standard by FM Approvals, 02/01/2006
- Publisher: FM Approvals
$25.00$50.00
This standard states FM Approvals criteria for alarm check valves that hydraulically activate a mechanical and/or electrical alarm when one or more sprinklers activate
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Fire Service Water Control Valves (OS &Y and NRS Type Gate Valves)..
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