Electro-Proportional Valves — Flow Control

PV72-35 — Spool-Type, 2-Port, Normally Open
  Selection guide - similar valves.
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  STP file for PV72-35.
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PV72-35 Valve

SYMBOL:
PV72-35 Valve symbol
DESCRIPTION
A solenoid-operated, spool-type, normally open, proportional flow control valve.

OPERATION
The PV72-35 provides regulated flow from port 2 toport 3; port 1 should be plugged.
The flow is inversely proportional to the current applied to the solenoid. The valve
is intended for use with a pressure compensator at a pressure differential not exceeding
12 bar (175 psi).

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.
• Optional control orifice sizes.
• Optional coil voltages and terminations.
• Efficient wet-armature construction.
• Cartridges are voltage-interchangeable.
• Unitized, molded coil design.
• Coil waterproofing standard.
• Manual Override option.

RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 345 bar (5000 psi)
Burst Pressure: 896 bar (13000 psi)
Flow Rating: See Performance chart.
Internal Leakage: 328 cc/min. (20 cu. in./min.) fully closed at 207 bar (3000 psi)
Electrical:(with size 70 E-series and D-series coils)
Coil Voltage Valve Inductance (mH) Threshold
Current (mA)
Max Control
Current (mA)
E-Coil D-Coil
12 240 200 300 ± 200 1500 ± 100
24 700 600 150 ± 100 750 ± 50
Operating Fluid Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals
Dither/PWM Frequency Range: 100 to 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: Install D-series coils with two O-rings above and below the coil. Install
   E-series coils with only one O-ring above the coil. Manual override options M and G
   require Coil Nut Kits. See part numbers below. See Cartridge Installation, page 9.020.1
   for cartridge, coil and coil retainer installation. To assure proper function, coil retainer must
   be installed.
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 for seal kit options and appropriate seals based
   on application temperature range.
Coil Nut Kits (for Manual Override Option G): 4001214; (for Manual Override Option M): 420218

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:

PV72-35 Valve Flow Performance chart
DIMENSIONS:

PV72-35 Valve Dimensions Port Plugs

 

MATERIALS:

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.

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.

 

ORDERING CHART:

PV72-35 Ordering