OSYSU-1/2 Supervisory Switch
2"-12"
Creates branch connections in fire protection piping networks.

Technical Specifications
| Model / Size | 2"-12" |
|---|---|
| Category | Accessories |
| Application | Creates branch connections in fire protection piping networks. |
| Specification | Valve supervisory switch monitors the open or closed position of fire protection valves and sends status signals to the fire alarm system. |
Specifications listed above are for reference. For detailed technical data, sizing charts and certification documents, download the specification sheet or contact our engineering team.
Application Overview
Creates branch connections in fire protection piping networks.
Valve supervisory switch monitors the open or closed position of fire protection valves and sends status signals to the fire alarm system.
Compare With Similar Products
Side-by-side reference for accessories products in the same category.
| Attribute | OSYSU-1/2 Supervisory SwitchCurrent product | VSR-F Flow Switch | WMA-1 Water Alarm Gong | Pressure Gauge |
|---|---|---|---|---|
| Model / Size | 2"-12" | 2"-12" | — | 1/4“ NPT |
| Category | Accessories | Accessories | Accessories | Accessories |
| Application | Creates branch connections in fire protection piping networks. | Detects water flow in fire sprinkler piping and sends an alarm signal when flow exceeds the preset threshold. | Changes pipe direction in fire protection piping systems. | Monitors valve position and sends status signals to fire alarm control panels. |
| Specification | Valve supervisory switch monitors the open or closed position of fire protection valves and sends status signals to the fire alarm system. | Supervisory flow switch for wet pipe sprinkler systems. | Provides a mechanical audible alarm by using water flow from the sprinkler system, requiring no electrical power. | 0–300 PSI fire sprinkler pressure gauge provides reliable pressure monitoring for fire protection and sprinkler systems. |
Values are taken from our published product data. Confirm the final selection with our engineering team for project-specific requirements.
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