Valves - Electro-proportional Controls - Flow Control - Pressure Compensated - Priority Type - Normally Open

PV72-31

NORMALLY OPEN PRESSURE COMPENSATED ELECTRO-PROPORTIONAL PRIORITY FLOW REGULATOR VALVE CARTRIDGE

Overview

Description

PV72-31 is a solenoid operated, pressure compensated, spool type, normally open, proportional priority flow control valve.

Operation

The valve provides priority regulated flow at port 3 with pressure compensated regulated and bypass flow. The regulated flow is inversely proportional to electric current applied to the solenoid. Priority flow will decrease with increasing current applied to the solenoid.

Features

  • Choice of two regulated flow ranges
  • Excellent linearity and hysteresis characteristics.
  • Optional coil voltages and terminations.
  • Efficient wet-armature construction.
  • Cartridges are voltage-interchangeable.
  • Unitized, molded coil design.
  • Coil waterproofing standard.
  • Manual Override option.
Pressure Ratings
Pressure rating:
  • 240 bar (3500 psi)
Proof pressure:
  • 345 bar (5000 psi)
Burst pressure:
  • 896 bar (13000 psi)
Flow Ratings
Flow rating:
  • 0 to 53 lpm (0 to 14.0 gpm) For "a" flow range;
  • 0 to 37.9 lpm (0 to 10.0 gpm) For "b" flow range
Maximum internal leakage:
  • 0.38 lpm (0.1 gpm) Fully closed at 207 bar (3000 psi).
Hysteresis flow:
  • ±1.9 lpm (0.50 gpm)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With Buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM B117
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.42 kg (0.93 lb) PV72-31X
  • 0.47 kg (1.03 lb) PV72-31XM
  • 0.56 kg (1.23 lb) PV72-31XG
Internal wetted surface area:
  • 338.1 cm² (52.4 in²) PV72-31X
  • 341.3 cm² (52.9 in²) PV72-31XM PV72-31XG
Note:
  • With size 70 e-series and d-series coils
Valve inductance:
  • 240 mH E-coil 12 V
  • 200 mH D-coil 12 V
  • 700 mH E-coil 24 V
  • 600 mH D-coil 24 V
Threshold current:
  • 150 mA ±100 12 V coil
  • 75 mA ±50 24 V coil
Maximum control current:
  • 1350 mA ±150 12 V coil
  • 675 mA ±75 24 V coil
Dither PWM frequency:
  • 100 to 250 Hz
PV72-31_Perf1(2022-02-24) PV72-31_Perf2(2022-02-24)
PV72-31_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 47 N-m (35 ft-lb)
Coil nut torque:
  • 14 to 16 N-m (10 to 12 ft-lb)
Cover cap torque:
  • 7 to 9 N-m (5 to 7 ft-lb)
Orientation restriction:
  • None
PV72-31_Order(2022-02-24)
POSITION
CODE
DESCRIPTION
PV72-31DE-H-J-L
D
Max Regulated Flow
D
A
53.0 lpm (14.0 gpm) Max Regulated Flow
D
B
37.9 lpm (10.0 gpm) Max Regulated Flow
E
Manual Override
E
BLANK
NONE
E
G
Variable Position Override, Red Knurled Knob with Cover Cap
E
M
Variable Position Override, Red Knurled Knob
H
Line Body
H
0
No Body
H
8T
Aluminum SAE 8
H
10T
Aluminum SAE 10
H
12T
Aluminum SAE 12
H
12TD
Ductile Iron SAE 12
H
6B
Aluminum BSPP 3/4" (6)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
L
Coil
L
0
No Coil
L
12DG
12 VDC, D-Coil, DIN 43650
L
12DL
12 VDC, D-Coil, Dual Lead Wires
L
12DL/W
12 VDC, D-Coil, Dual Lead Wires with Weatherpak
L
12DS
12 VDC, D-Coil, Dual Spade
L
12ER
12 VDC, E-Coil, Deutsch
L
12EY
12 VDC, E-Coil, Metri-Pack 150
L
24DG
24 VDC, D-Coil, DIN 43650
L
24DL
24 VDC, D-Coil, Dual Lead Wires
L
24DS
24 VDC, D-Coil, Dual Spade
L
24ER
24 VDC, E-Coil, Deutsch