Watts 3G-OTH-444390 — Technical Specifications
The Watts 957 Reduced Pressure Zone Backflow Preventer (MPN 957-OSY 4") is a flange-connected RPZ backflow preventer with a 4-inch pipe size. It features an OSY gate valve shut-off valve type and includes a flood detection sensor.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | with Flood Detection Sensor |
| Pipe Size | 4 in |
| Connection Type | Flange |
| Shut-Off Valve Type | OSY Gate Valve |
| Manufacturer Part Number | 957-OSY 4" |