Potter VSR-6 6 inch Sprinkler Attachment

The Potter VSR-6 is a 6-inch vane-type waterflow alarm switch (“sprinkler attachment”) for wet-pipe sprinkler systems. It detects sustained water movement and provides two independent alarm outputs, with an adjustable pneumatic delay to help prevent nuisance trips. A weather-resistant NEMA 4/IP54 enclosure and isolated switch compartments support mixed-voltage wiring in the same device. Key Specifications: Pipe Size: 6 in (DN150) steel pipe Operation: Vane (paddle) mechanism; typical actuation around 4–10 GPM downstream flow Time Delay: Field-adjustable pneumatic retard, 0–90 seconds (instant recycle) Outputs: Two SPDT (Form C) alarm contacts Electrical Ratings: 10 A @ 125/250 VAC; 2 A @ 30 VDC; 10 mA minimum @ 24 VDC Enclosure: NEMA 4/IP54; composite cover with die-cast base Max Working Pressure: 450 psi; designed to tolerate high-velocity surges Conduit: Two 1/2 in knockouts; isolated compartments for dissimilar voltages Part Number: VSR-6 (1144406)