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FM Approvals 1041
- Alarm Check Valves
- standard by FM Approvals, 02/01/2006
- Publisher: FM Approvals
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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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Nonincendive Electrical Equipment for Use in Class I and II, Division 2, and Class III, Divisions 1 ..
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