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Valves - Electro-proportional Controls - Flow Control - Non-compensated - Spool Type - Normally Closed

PV70-33

NORMALLY CLOSED ELECTRO PROPORTIONAL VALVE CARTRIDGE

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Overview

Description

Pv70-33xx is a solenoid operated, spool type, normally closed, proportional flow control valve designed for use with a pressure compensator to function as a proportional flow regulator.

Operation

Pv70-33xx is a solenoid operated, spool type, normally closed, proportional flow control valve designed for use with a pressure compensator to function as a proportional flow regulator.

Features

  • 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.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 345 bar (5000 psi)
Burst pressure:
  • 896 bar (13000 psi)
Flow Ratings
Flow rating:
  • 0 to 45.4 lpm (0 to 14 gpm) Range A
  • 0 to 37.8 lpm (0 to 10 gpm) Range b
  • 0 to 18.9 lpm (0 to 5 gpm) Range c
Maximum internal leakage:
  • 197 ml/min (12 in³/min)
Hysteresis flow:
  • lpm (gpm) Maximum
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
  • -54 to 107 °C (-65 to 225 °F) With urethane 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:
  • 0.32 kg (0.70 lb) PV70-33X
  • 0.38 kg (0.83 lb) Pv70-33mx
  • 0.46 kg (1.02 lb) Pv70-33gx
Internal wetted surface area:
  • 173.1 cm² (26.8 in²) Pv7033x
  • 176.3 cm² (27.3 in²) Pv7033mx and pv70-33gx
Note:
  • With size 70 d-series and e-series coils
Valve inductance:
  • 240 mH E-coil 12 V
  • 700 mH E-coil 24 V
  • 200 mH D-coil 12 V
  • 600 mH D-coil 24 V
Threshhold current:
  • 300 mA Flow range A or b 12 V coil
  • 150 mA Flow range A or b 24 V coil
  • 360 mA Flow range c 12 V coil
  • 180 mA Flow range c 24 V coil
Maximum control current:
  • 1500 mA Flow range A or b 12 V coil
  • 750 mA Flow range A or b 24 V coil
  • 1400 mA Flow range c 12 V coil
  • 700 mA Flow range c 24 V coil
Dither PWM frequency:
  • 100 to 250 Hz
PV70-33_Perf_Chrt(2022-02-24)
PV70-33_Dim_Dwg(2022-02-24)
NOTES:
  • Note: For D-series coils install both the upper and lower O-rings.
  • Note: For E-series coils install the upper O-ring only.
  • Note: Do not operate or pressurize the valve without installing the coil retaining nut. To ensure proper function, the coil nut must be installed to retain the coil.
  • Note: See installation instructions for detailed procedure.
Cavity:
  • VC10-3
Cartridge installation torque:
  • 34 to 37 N-m (25 to 27 ft-lb)
Maximum allowable torque:
  • 75 N-m (55 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
Seal kit:
  • SK10-3X-MM (x = N V seal option
  • SK10-3U-OO U seal option
Housings:
Coils:
PV70-33_Order(2022-02-24)

Model Options

PV70-33DE-H-J-L
D Max Regulated Flow
CODE
DESCRIPTION
A
45.4 lpm (14.0 gpm) Max Regulated Flow
B
37.8 lpm (10.0 gpm) Max Regulated Flow
C
18.9 lpm (5.0 gpm) Max Regulated Flow
E Manual Override
CODE
DESCRIPTION
BLANK
NONE
G
Variable Position Override, Red Knurled Knob with Cover Cap
M
Variable Position Override, Red Knurled Knob
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
L Coil
CODE
DESCRIPTION
0
No Coil
12DG
12 VDC, D-Coil, DIN 43650
12DL
12 VDC, D-Coil, Dual Lead Wires
12DL/W
12 VDC, D-Coil, Dual Lead Wires with Weatherpak
12DS
12 VDC, D-Coil, Dual Spade
12ER
12 VDC, E-Coil, Deutsch
12EY
12 VDC, E-Coil, Metri-Pack 150
24DG
24 VDC, D-Coil, DIN 43650
24DL
24 VDC, D-Coil, Dual Lead Wires
24DS
24 VDC, D-Coil, Dual Spade
24ER
24 VDC, E-Coil, Deutsch

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