System Sensor OSY2 Supervisory Switch – Outside Screw & Yoke (OS&Y) Gate Valve
The System Sensor OSY2 Supervisory Switch is designed to monitor the open position of an Outside Screw & Yoke (OS&Y) type gate valve—a crucial component in fire sprinkler and extinguishing systems. This unit offers rugged construction for indoor/outdoor use, features tamper‑resistant cover screws, and has a durable bracket and adjustable shaft to accommodate various valve sizes and configurations (Bracket & Mounting Hardware Not Included). It includes two synchronized SPDT (Form C) switches, so it can provide both local bell or alarm panel signaling.
Perfect for replacement or backup units in fire protection systems. This listing is for the OSY2 Sup. Switch ONLY and does not include bracket or mount. Tested, cleaned, functioning normally.
Model: OSY2 Supervisory Switch
Manufacturer: System Sensor
Application: Monitors OS&Y Gate Valves In Sprinkler Systems
Contact Configuration: 2 SPDT (Form C) Synchronized Switches
Contact Ratings: 10 A @ 125/250 VAC; 2.5 A @ 6/12/24 VDC
Enclosure Type: Metal Housing, NEMA 3R Rated (Actuator Vertical)
Compatible Valve Sizes: 1" To 12"
Maximum Stem Extension: 2 5/8"
Wire Gauge Support: Up To 12 AWG
Temperature Range: 32°F To 120°F (Operational Down To -40°F)
Dimensions: 5 3/4" H × 3 1/2" W × 3 1/4" D
Shipping Weight: 2.8 Lbs (1.3 Kg)
Mounting: Vertical Actuator Recommended
Service Use: NFPA 13, 13D, 13R, 72 Compliant
This item was removed from a decommissioned facility. While it has been cleaned, tested, and will be shipped securely, please be aware that it is used and may not have perfect functionality. I am not an authorized distributor or representative of the product featured.