PV72-21 Proportional Flow Control Cartridge, (PV72-21)
A solenoid operated, electrically-variable, two-port, pressure-compensated, spool-type, normally open when de-energized, proportional flow control valve.
Product Operation
The PV72-21 will regulate flow out of port ➁ regardless of system working pressure. With an increasing current applied to the solenoid, the PV72-21 will decrease output
flow.
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 until positive stop
is found.
Product Features
• Excellent linearity and hysteresis characteristics.
• Hardened spool and cage for long life.
• Effi cient wet armature construction.
• Optional coil voltages and terminations.
Product Ratings
Operating Pressure: Port ➀: 240 bar (3500 psi); Port ➁: 207 bar (3000 psi)
Regulated Flow Rate: 56 lpm (15 gpm)
Internal Leakage: .38 lpm (0.1 gpm) fully closed at 207 bar (3000 psi)
Electrical: 2 standard voltage ratings
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: VC12-2, Cavity Variation “B”; See page 9.112.1
Cavity Tool: CT12-2X-XX; See page 8.600.1
Seal Kit: SK12-2X-M; See page 8.650.1 for seal kit options and appropriate seals based on application temperature range.
• Cartridges voltage interchangeable.
• Unitized, molded coil design.
• Coil waterproofi ng standard.
• Manual override option.
Coil
Voltage12 VDC24 VDC
Threshold
Current150 ± 100 mA75 ± 50 mA
Max. Control
Current1350 ± 150 mA675 ± 75 mA691000PRESSURE DROP bar/psiFLOW lpm/gpmRegulated Flow vs. Pressure DropInput Pressure: 240 bar/3500 psi12V Coil; 110 Hz PWM32 cSt/150 ssu oil at 40°C1382000207300075.6/2060/1645/1230/815/4
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROLS
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Recommended Electronic Controllers:See page 2.001.1 or our Electronics catalog.
