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DESCRIPTION
A solenoid-operated, electrically-variable, three-port, pressure-compensated, spool-type, normally closed when de-energized, proportional flow control valve. It can be used as a priority-type flow regulator with pressure-compensated, regulated and bypass flow. It can also be used as a restrictive-type-2-way, pressure-compensated flow regulator when the bypass line (port 2) is blocked.
OPERATION
The E-PV70-30 will regulate priority flow out of port 3 regardless of system working pressure. With an increasing current applied to the solenoid, the E-PV70-30 will increase output flow.
Note: When used as a bypass flow control in applications where the priority flow port will be blocked by external valving, bypass pressure drop will increase unless a small amount of leakage is provided for the priority port. Consult factory.
Operation of Manual Override: To Engage: Turn clockwise approximately 1 turn to reach start point. Continue another approximately 5 turns to full shift. To disengage: Turn counterclockwise approximately 6 turns to positive stop.
FEATURES
* Excellent linearity and hysteresis characteristics.
* Hardened spool and cage for long life.
* Optional coil voltages and terminations.
* Efficient wet-armature construction.
* Cartridges are voltage-interchangeable.
* Unitized, molded coil design.
* Coil waterproofing standard.
* Manual Override option.
SPECIFICATIONS:
Operating Pressure: Port 1 (Inlet): 240 bar (3500 psi); Port 2 and 3: 207 bar (3000 psi)
Regulated Flow Rate:
Bypass Blocked, Range A: 26 lpm (7.0 gpm)
Bypass Blocked, Range B: 17 lpm (4.5 gpm)
Bypass Open, Range A: 30 lpm (8 gpm)
Maximum Input Flow:
Bypass Open, Range A: 50 lpm (13 gpm)
Bypass Open, Range B: 26 lpm (7 gpm)
Internal Leakage: 197 ml/min (12 in³/min) fully closed at 207 bar (3000 psi)
Electrical Parameters (2 standard voltage ratings):
| Coil Voltage | Threshold Current | Max.Control Current |
| 12 VDC | 350 ± 100 mA | 1500 ± 75 mA |
| 24 VDC | 175 ± 50 mA | 750 ± 150 mA |
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus);
Cavity: VC10-3
PERFORMANCE:
DIMENSIONS
ORDER CODE:
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