Watts TS-OSY - Part of the TS-OSY Series Z100F-3NH It is designed to protect

It is designed to protect system components from dirt

hood screws

reinforced PTFE Durafill® seat

The Watts RD-200-W is a small-area roof drain designed for primary drainage on lower­slope or small roof patches

5' x 309' Roll

Watts TS-OSY - Part of the TS-OSY Series Z100F-3NH It is designed to protectThis supervisory tamper switch, model TS OSY, is intended for use in fire service systems. The purpose is to sound an alarm when the OS&Y valve is closed, or the tamper switch is removed. The TS OSY supervisory switch is UL Certified, Safety Signaling (Control No. 3L38), and installed on all OS&Y type valves that can be used to isolate the flow of water to any portion of the fire sprinkler system, where indicated on the drawings and plans and as