This document is about Netafim USA Pressure Sustaining Normally Open (PSNO) Valves selection, installation, operation and troubleshooting guide.
The Netafim USA Pressure Sustaining Normally Open (PSNO) Valve is designed to ensure filters initiate a backflush cycle with the required pressure for proper cleaning. By maintaining the correct upstream pressure, these valves maximize flush cycle efficiency, resulting in reduced maintenance, downtime, and water usage. The document provides guidelines for selecting the proper valve size based on flow rates and material options.
| Standard Solenoid Voltage | 24VAC |
|---|---|
| Valve Material Options | PVC or Iron |
A PSNO Valve ensures that the filter will initiate a backflush cycle with the required pressure for proper cleaning.
During flushing mode, the solenoid is energized and the valve partially closes to maintain a set upstream pressure regardless of flow rate.
Using a PSNO valve results in less maintenance, less downtime, and less water and energy used due to more efficient flushing.