Potter OSYSU-1 OSYSU Series Outside Screw and Yoke Valve Supervisory Switch (Single Switch)

Ensure continuous, code-compliant supervision of OS&Y (outside screw and yoke) gate valves with the Potter Electric Signal OSYSU-1 valve supervisory switch. Designed for reliable valve position monitoring in fire protection and water-flow control applications, this single-switch device provides one SPDT (Form C) contact that delivers a clear supervisory signal to fire alarm control panels, BMS, or security monitoring systems. Built for tough conditions, the OSYSU-1 features a NEMA 4X / 6P (IP65/IP67) enclosure and an operating range from -40º to 140ºF, making it suitable for indoor and outdoor installations. It mounts easily to most 2"–12" (50–300mm) OS&Y valves and includes a tamper-resistant cover with the removal tool supplied to protect connections and meet physical security standards. RoHS-compliant and US-manufactured, the OSYSU-1 is a practical choice for engineers and facilities managers who need dependable supervision for water flow and fire suppression systems. Add the OSYSU-1 to your next installation or contact our team to specify it for your security and monitoring network.

• Provides dependable OS&Y valve position monitoring to ensure water-flow control and fire protection systems stay supervised and code-compliant
• Rugged NEMA 4X / 6P (IP65/IP67) enclosure and -40º to 140ºF rating for reliable outdoor and indoor performance in harsh environments
• Single SPDT (Form C) contact delivers clear, actionable signals to building security and monitoring systems for integration with fire panels or BMS
• Fits most 2"–12" (50–300mm) OS&Y valves (mounts on some smaller valves), simplifying retrofit and reducing installation time
• Tamper-resistant cover with special tool included protects critical wiring and supports physical security requirements