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A linear solenoid-driven, two-way normally open, screw-in cartridge valve designed for use with a pressure compensator to function as an electrically stroked variable flow regulator.
With increasing electric current, the PV72-35 changes from full open to full closed
with flow from port ➁ to port ➂. Port ➀ is used only to pressure balance the spool and should be plugged. The proportional valve is intended to function in tandem with
standard HydraForce pressure compensators at pressure differentials of 21 bar
(300 psid) or less, or alone in variable volume pressure-compensated circuits with
load sense capability.
The valve is designed to work with industry-common controllers which typically
feature current capability to 2 amps @ 12 VDC, PWM, and start/stop trim adjustments
(I-min./I-max.). Consult factory for details and potential sourcing.
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.
• Excellent linearity and hysteresis.
• Optional control orifice sizes.
• Hardened spool and cage for long life.
• Optional coil voltages and terminations.
• Effi cient wet armature construction.
Operating Pressure: 207 bar (3000 psi)
Internal Leakage: 328 cc/min. (20 cu. in./min.) fully closed at 207 bar (3000 psi)
Electrical: 2 standard voltage ratings
• Cartridges voltage interchangeable.
• Unitized, molded coil design.
• Coil waterproofi ng standard.
• Manual override option.
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: VC12-3; See page 9.110.1;
Cavity Tool: CT12-3X-XX; See page 8.600.1
Seal Kit: SK12-3X-MM; See page 8.650.1 for seal kit options and appropriate seals based on application temperature range.
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROLS
H
YDRA
F
ORCE.com®
Threshold Current 300 ± 200 mA 150 ± 100 mA
Coil Voltage12 VDC24 VDC
Max. Control Current 1500 ± 100 mA 750 ± 50 mA
Recommended Electronic Controllers:See page 2.001.1 or our Electronics catalog.
