Gate Valve TS-OSY

OSY Gate Valve with Tamper Switch for Fire Protection

  • For use in fire-service systems
  • Supervisory switch indicates the open or closed position of the OSY gate valve
  • Factory calibrated to eliminate field calibration
  • Available in flange x flange, flange x groove, and groove x groove end connections
  • Designed for indoor and outdoor applications

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA