PV70-31 Proportional Flow Control Cartridge,

DESCRIPTION

A solenoid operated, electrically-variable, three-port, pressure-compensated, spool-

type, normally open when de-energized, proportional ﬂ ow control valve. It can be used

as a priority-type ﬂ ow regulator with pressure-compensated, regulated and bypass

ﬂ ow. It can also be used as a restrictive-type two-way, pressure-compensated ﬂ ow

regulator when the bypass line (port

➁) is blocked.

OPERATION

The PV70-31 will regulate ﬂ ow out of port ➂ regardless of system working pressure.

With increasing current applied to the solenoid, the PV70-31 will decrease output ﬂ ow.

Note: When used as a bypass ﬂ ow control in applications where the priority ﬂ ow port

will be blocked by external valving, bypass pressure drop will increase unless a small

amount of leakage is provided for the priority port. Consult factory.

Operation of 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 to positive stop.

FEATURES

• Excellent linearity and hysteresis.

• Hardened spool and cage for long life.

• Optional coil voltages and terminations.

• Efﬁ cient wet armature construction.

RATINGS

Operating Pressure: Inlet: 240 bar (3500 psi); Ports ➁ and ➂: 207 bar (3000 psi)

Regulated Flow Rate: Bypass Blocked, Range A: 26 lpm (7 gpm)

Bypass Blocked, Range B: 17 lpm (4.5 gpm)

Bypass Open, Range A: 30 lpm (8 gpm)

Bypass Open, Range B: 17 lpm (4.5 gpm)

Maximum Input Flow: Bypass Open, Range A: 50 lpm (13 gpm)

Bypass Open, Range B: 26 lpm (7 gpm)

Internal Leakage: 197 cc/min. (12 cu. in./min.) fully closed at 207 bar (3000 psi)

Electrical: 2 standard voltage ratings

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: VC10-3; See page 9.110.1; Cavity Tool: CT10-3X-XX; See page 8.600.1

Seal Kit: SK10-3X-MM; See page 8.650.1 for seal kit options

and appropriate seals based on application temperature range.

USASI/ISO:

SYMBOLS

2.382.1

PERCENT OF MAX. CONTROL CURRENT

FLOW lpm/gpm

Flow vs. Current

207 bar/3000 psi; 12V Coil; 200 Hz PWM

32 cSt/150 ssu oil at 40°C

Range A, 2-Ported

Range A, 3-Ported

Range B, 2-Ported

Range B, 3-Ported

40 60 80 100

37.9/10

30.3/8

22.7/6

15.1/4

7.6/2

PERFORMANCE

Performance information continued

on following page.

Threshold Current

150 ± 70 mA

75 ± 35 mA

Coil Voltage

12 VDC

24 VDC

Max. Control Current

1400 ± 200 mA

700 ± 100 mA

ELECTRO-PROPORTIONAL VALVES—FLOW CONTROLS

HYDRAFORCE

.com

• Cartridges voltage interchangeable.

• Unitized, molded coil design.

• Coil waterprooﬁ ng standard.

• Manual override option.

Recommended Electronic Controllers:

See page 2.001.1 or our Electronics catalog.

Blue rectangles are links to other catalog pages.

PV70-31

Normally Open

DIMENSIONS

2.382.2

1.06

27.0

ACROSS FLATS

2.70

1.81

68.6

46.0

0.87 1.86

22.1 47.2

MILLIMETRE

INCH

1.13

28.6

ACROSS FLATS

18.8

53.8

66.5

34.5

7.1

50.86.4

63.5

31.8

1.36

2.00

0.25

2.62

2.12

0.74

2.50

1.25

0.28

TORQUE: 10–12 ft-lbs

(14–16 Nm)

TORQUE:

27 ft-lbs max.

(36.7 Nm)

44.1

1.74

.67

17.0

3.37

85.6

1.71

43.4

2.09

53.1

MANUAL

OVERRIDE

OPTION

"G"

MANUAL OVERRIDE

OPTION "M"

PERFORMANCE

(Continued)

1000

PRESSURE DROP bar/psi

FLOW lpm/gpm

Regulated Flow vs. Pressure Drop

2-Ported; Flow Range A

240 bar/3500 psi Inlet

12V Coil; 200 Hz PWM

32 cSt/150 ssu oil at 40°C

138

2000

207

3000

276

4000

37.9/10

30.3/8

22.7/6

15.1/4

7.6/2

0.0 AMP

0.5 AMP

0.8 AMP

1.1 AMP

1000

PRESSURE DROP bar/psi

FLOW lpm/gpm

Regulated Flow vs. Pressure Drop

2-Ported; Flow Range B

240 bar/3500 psi Inlet

12V Coil; 200 Hz PWM

32 cSt/150 ssu oil at 40°C

138

2000

207

3000

276

4000

18.9/5

3.8/1

11.4/3

22.7/6

15.1/4

7.6/2

0.0 AMP

0.5 AMP

0.7 AMP

0.9 AMP

1.1 AMP

HYDRAFORCE

.com

Porting

0 Cartridge

Only

6T SAE 6

8T SAE 8

2B 1/4 in. BSP*

3B 3/8 in. BSP*

Option(s)

None

(Blank)

Manual

Override M

Manual

Override

with Guard G

Cartridge: Weight: 0.19 kg. (0.42 lbs.)

Steel with hardened work surfaces.

Zinc-plated exposed surfaces. Buna

N O-rings and polyester elastomer

back-ups standard.

Standard Ported Body: Weight:

0.36 kg. (0.80 lbs.) Anodized high-

strength 6061 T6 aluminum alloy,

rated to 207 bar (3000 psi). Ductile

iron bodies available; dimensions

may differ. See page 8.010.1

70-Size “D” Coil: Weight: 0.32 kg.

(0.7 lbs.) Unitized thermoplastic

encapsulated, Class H high

temperature magnet-wire.

See page 3.200.7.

70-Size “E” Coil: Weight: 0.41 kg.

(0.9 lbs.) Fully encapsulated with

rugged external metal shell.

IP69K rated. See page 3.400.13.

MATERIALS

TO ORDER

PV70-31

__ __ - __ __ __ - __ - __ __ __ __

Flow Range

Voltage

0 Less Coil

12 12 VDC

24 24 VDC

Required. See

Performance

Curves.

Coils with internal diode are

available. Consult factory.

Seals

Buna N (Std.) N

Fluorocarbon V

*BSP Body;

U.K. Mfr. Only

Terminations D-Coil

DS Dual Spades

DG DIN 43650

DL Leadwires (2)

DL/W Leads w/Weatherpak

Connectors

Terminations E-Coil

IP69K Rated

ER Deutsch DT04-2P

EY Metri-Pack

150

Blue rectangles are links to other catalog pages.