OPERATION:
When de-energized, the ZY-SV08-20 acts as a check valve, allowing flow from 1 to 2, while blocking flow from 2 to 1. When energized, the cartridge's poppet lifts to open the 2 to 1 flow path. In this mode, flow from 1 to 2 is severely restricted.
RATINGS:
Operating Pressure: 207 bar (3000 psi);
Proof Pressure: 255 bar (3700 psi);
Flow: See Performance Chart;
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 207 bar (3000 psi);
Temperature: -40 to 120 °C with standard Buna seals;
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage;
Response Time: First indication of change of state with 100% voltage supplied at 80% of nominal flow rating: Energized: 40 ms De-energized: 46ms;
Minimum Pull-in Voltage: 85% of nominal at 207 bar (3000 psi);
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus);