SYMBOL
DESCRIPTION
Electromagnetic drive, variable electrical parameters, 3-way, pressure compensated, spool type, normally open when off power, proportional flow control valve. It can be used as a priority flow regulating valve with pressure compensation to regulate and bypass flow. When the bypass line (oil port 2) is closed, it can also be used as a 2-way throttle pressure compensation flow regulating valve.
OPERATION
The E-PV70-31 will adjust the flow rate of oil port 3 without being affected by the working pressure of the system. As the current in the solenoid valve increases, the output flow rate of E-PV70-31 will also decrease.
Note: If the priority flow oil port of the equipment is closed by an external valve, it is necessary to set a small oil discharge hole at the priority oil port 3 when this valve is used for bypass flow control. Please contact the manufacturer.
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 Off, Range A: 26 lpm (6.5 gpm)
Bypass Off, Range B: 17 lpm (4.25 gpm)
Bypass On, Range A: 30 lpm (7.5 gpm)
Rated Input Flow:
Bypass Open, Range A: 50 lpm (12.5 gpm)
Bypass Open, Range B: 26 lpm (6.5 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 | 150 ± 70 mA | 1400 ± 200 mA |
| 24 VDC | 75 ± 35 mA | 700 ± 100 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:
AAK Hydraulic Valve is a top manufacturer for Hydraulic Screw-in Cartridge Valves in Ningbo China since 2009.
We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
Contact us to customize your valves and promote your business with our premium quality!
