Electro-Proportional Valves — Flow Control HyPerformance™

PV72-20 — Spool-Type, 2-Port, Normally Closed, Restrictive
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PV72-20 Valve

SYMBOL:
PV72-20 Valve symbol
DESCRIPTION
A solenoid-operated, electrically-variable, 2-port, normally closed, pressure-compensated,
proportional flow control, spool-type, screw-in hydraulic cartridge valve.

OPERATION
The PV72-20 will regulate flow out of port 2 regardless of system working
pressure. With an increasing current applied to the solenoid, output flow will increase.

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.

FEATURES
• Choice of two regulated flow ranges
• Excellent linearity and hysteresis characteristics.
• Hardened spool and cage for long life.
• Efficient wet-armature construction.
• Optional coil voltages and terminations.
• Cartridges are voltage-interchangeable.
• Unitized molded coil design – waterproofing standard.
• Manual override option.

RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 345 bar (5000 psi)
Burst Pressure: 896 bar (13000 psi)
Regulated Flow: Range A: 0 to 64 lpm (0 to 17 gpm);
   Range B: 0 to 37.9 lpm (0 to 10 gpm)
Internal Leakage: 0.38 lpm (0.1 gpm) fully closed at 207 bar (3000 psi)
Electrical Parameters:
Coil Voltage Valve Inductance (mH) Threshold
Current (mA)
Max Control
Current (mA)
E-Coil D-Coil
12 240 200 250 ± 100 1500 ± 100
24 700 600 125 ± 50 750 ± 50
Hysteresis: + 1.9 lpm (0.5 gpm) maximum
Dither/PWM Frequency Range: 100-250 Hz
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, Variation 'B'; See page 9.112.1_2w
Cavity Tool: CT12-2x-xx; See page 8.600.1
Seal Kit: SK12-2x-M; 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



 

 

PERFORMANCE:

PV72-20 Valve Flow chart

 

DIMENSIONS:

PV72-20 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.40 kg (0.88 lb) with
M option: 0.44 kg (0.98 lb) with G option:
0.55 kg (1.21 lb) Steel with hardened work
surfaces. Zinc-plated exposed surfaces.
Buna N O-rings and polyester elastomer
back-ups standard.

Standard Ported Body: Weight: 0.59 kg
(1.3 lb); Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.012.1_2w.

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: 0.41 kg
(0.9 lb); Perfect wound, fully encapsulated
with rugged external metal shell; Rated up to
IP69K with integral connectors.
See page 3.400.1_70-size.

 

ORDERING CHART:

PV72-20 Ordering