Electro-Proportional Valves — Flow Control

PV72-30 — Spool-Type, 3-Port, Normally Closed
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PV72-30 Valve

PV72-30 Valve symbol

A solenoid-operated, electrically-variable, 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. It can
also be used as a restrictive-type 2-way, pressure-compensated flow regulator when the
bypass line (port 2) is blocked.

The PV72-30 will regulate flow out of port 3 regardless of system working pressure.
With an increasing current applied to the solenoid, output flow will increase.
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 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.

• 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.

Operating Pressure: Port 1: 240 bar (3500 psi); Ports 2 and 3: 207 bar (3000 psi)
Regulated Flow in 3-Port Mode: Range A: 57 lpm (15 gpm); Range B: 38 lpm (10 gpm)
Max. Input Flow in 3-Port Mode: Range A and B: 114 lpm (30 gpm)
Max. Flow in 2-Port Mode: Range A: 53 lpm (14 gpm); Range B: 31 lpm (8 gpm)
   Note: for increased flow capacity in a 2-port flow control, see model PV72-20
Internal Leakage: 38 lpm (0.1 gpm) fully closed at 207 bar (3000 psi)
Electrical: 2 standard voltage ratings:
 Coil Voltage
Threshold Current
Max. Control Current
 12 VDC
350 ±100 mA
1600 ±200 mA
24 VDC 175 ±50 mA 800 ±100 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: VC12-3; See page 9.112.1_3w
Cavity Tool: CT12-3x-xx; See page 8.600.1
Seal Kit: SK12-3x-MM; See page 8.650.1

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




PV72-30 Valve Flow chart



PV72-30 Valve Dimensions



Cartridge: Weight: 0.36 kg (0.80 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups

Standard Ported Body: Weight: 1.09 kg
(2.4 lb); Anodized high-strength 6061 T6
aluminum alloy, rated to 207 bar (3000 psi);
Ductile iron bodies available; dimensions
may differ. See page 8.012.1_3w.

70-Size D-Coil: Weight each: 0.32 kg
(0.7 lb); Unitized thermoplastic encapsulated,
Class H high temperature magnetwire.
See page 3.200.1_70-size.

70-Size E-Coil: Weight each: 0.41 kg
(0.9 lb); Fully encapsulated with rugged
external metal shell. IP69K rated.
See page 3.400.1_70-size.



PV72-30 Ordering