POTTER VSR-6eBayProduct Overview The Potter VSR 6 is a vane type waterflow switch designed for wet sprinkler systems. It features two single pole, double throw (SPDT) snap action switches with an adjustable, instantly recycling pneumatic retard. The switches activate when water flow of 10 GPM (38 LPM) or more occurs downstream, ensuring proper signaling in compliance with NFPA 13 standards. The device is suitable for both sectional and standard sprinkler systems
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