U.S. Patent
6,966,329
SYMBOL:
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DESCRIPTION
A solenoid-operated, electrically-variable, 2-stage, 3-port, normally closed, pressure-compensated, proportional flow control, spool-type, screw-in hydraulic cartridge valve. It can be used as a priority-type flow regulator with pressure-compensated, regulated and bypass flow.
OPERATION
The PV42-M30 will regulate flow out of port 3 regardless of system working pressure at 3 or at bypass port 2. Two priority flow ranges are provided for better resolution: Range A for priority flow up to 170 lpm/45 gpm, and Range B for priority flow up to 132 lpm/35 gpm. For either range, the input flow at 1 can be up to 225 lpm/60 gpm.
Note: When used as a bypass flow control in applications where the priority flow port will be blocked by external valving (dead-headed), bypass pressure drop will increase unless a small amount of leakage is provided for the priority port. Consult factory.
Manual Override: To Engage: Turn clockwise approximately 3 turns to reach start point.
Continue another approximately 2 more turns to full shift.
To Disengage: Turn counterclockwise approximately 5 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.
• Manual Override option.
RATINGS
Operating Pressure: Port 1 Inlet: 240 bar (3500 psi); Ports 2 and 3: 207 bar (3000 psi)
Regulated Flow: Range A: 190 lpm (50 gpm);
Range B: 132 lpm (35 gpm)
Nominal Input Flow: 225 lpm (60 gpm)
Internal Leakage: 1.52 lpm (0.4 gpm) at zero current
Electrical: 2 standard voltage ratings:
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Coil Voltage
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Threshold Current
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Max. Control Current
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12 VDC
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400 ±100 mA
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1400 ±150 mA
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| 24 VDC |
200 ±50 mA |
700 ±75 mA |
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC42-M3; See page 9.142.1_3w
Cavity Tool: CT42-M3x-xx; See page 8.600.1
Seal Kit: SK42-3x-MM; See page 8.650.1
RECOMMENDED ELECTRONIC CONTROLLERS
The EVDR Series controllers are recommended for use with most HydraForce proportional valves. These newer electronic controllers are versatile, reliable, and easily configured and customized for a wide range of applications. See the EVDR Product Selection Guide.
For other Electronic Controllers, see page 2.001.1_pdf
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