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Potter's WFSR-F Pressure Activated Waterflow Alarm Switch with Retard


The Model WFSR-F is a pressure operated switch with an adjustable, instantly recycling pneumatic retard to prevent false alarms due to water pressure variation. The WFSR-F is connected into the alarm port of a wet sprinkler system …

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Potter's PAV Air Vent Meets New NFPA 13 Code Requirement!


In a major change that impacts installers, the 2016 NFPA 13 adds a new requirement that a single air vent be installed for each wet sprinkler system to help reduce potential corrosion activity due to trapped air. See below: 7.1.5 Air Venting A …

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