Download PV70-35 Proportional Flow Control Cartridge

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ELECTRO-PROPORTIONAL VALVES—FLOW CONTROLS
PV70-35 Proportional Flow Control Cartridge,
DESCRIPTION
A linear solenoid-driven, two-way normally open, screw-in cartridge valve designed
for use with a pressure compensator to function as an electrically stroked variable
flow regulator.
OPERATION
With increasing electric current, the PV70-35 changes from full open to full closed
with flow from port ➁ to port ➂. Port ➀ is used only to pressure balance the spool and
should be plugged. The proportional valve is intended to function in tandem with
standard HydraForce pressure compensators at pressure differentials of 21 bar
(300 psid) or less, or alone in variable volume pressure-compensated circuits with
load sense capability.
The valve is designed to work with industry-common controllers which typically
feature current capability to 2 amps @ 12 VDC, PWM, and start/stop trim adjustments
(I min./I max.). Consult factory for details and potential sourcing.
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.
3
2
1
FEATURES
• Excellent linearity and hysteresis.
• Optional control orifice sizes.
• Hardened spool and cage for long life.
• Optional coil voltages and terminations.
• Efficient wet armature construction.
SYMBOLS
USASI/ISO:
3
RATINGS
1
Operating Pressure: 207 bar (3000 psi)
Internal Leakage: 197 cc/min. (12 cu. in./min.) fully closed at 207 bar (3000 psi)
Electrical: 2 standard voltage ratings
2
Coil Voltage
12 VDC
24 VDC
PERFORMANCE
PRESSURE DROP bar/psi
• Cartridges voltage interchangeable.
• Unitized, molded coil design.
• Coil waterproofing standard.
• Manual override option.
20.7/300
➂ to ➁ Coil De-energized
Through Cartridge & Ported Body
32 cSt/150 ssu oil at 40°C
Note: Port ➀ is not used.
17.2/250
C
13.8/200
B
A
10.3/150
Threshold Current
300 ± 200 mA
150 ± 100 mA
Max. Control Current
1500 ± 200 mA
750 ± 50 mA
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.
6.9/100
3.4/50
7.5
2
15.1 22.7 30.2 37.9
4
6
8
10
FLOW lpm/gpm
2.432.1
45.4 53.0
12
14
Recommended Electronic Controllers:
See page 2.001.1 or our Electronics catalog.
®
HYDRAFORCE.com
Blue rectangles are links to other catalog pages.
HYDRAFORCE
®
Normally Open
PV70-35
DIMENSIONS
MANUAL OVERRIDE
OPTION "M"
C
I N
FO R CE
R
A
1.25
31.8
X XX X
1.74
44.1
1.71
43.4
.
XX
2.09
53.1
MANUAL
OVERRIDE
OPTION
"G"
HY
D
.67
17.0
0.87
22.1
1.86
47.2
1.25
31.8
2.50
63.5
1.06
27.0
ACROSS FLATS
TORQUE: 10–12 ft-lbs
(14–16 Nm)
3.37
85.6
INCH
MILLIMETRE
2.70
68.6
0.74
18.8
1.81
46.0
1.13
28.6
ACROSS FLATS
3
TORQUE:
27 ft-lbs max.
(36.7 Nm)
2
1
Port Plugs:
For SAE 6 Port: Part No. 6103006
For SAE 8 Port: Part No. 6103008
See page 8.500.1
MATERIALS
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 highstrength 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.
®
HYDRAFORCE.com
2.12
53.8
1.36
34.5
3
2
2.62
66.5
0.28
7.1
1 Plugged
0.25
6.4
2.00
50.8
TO ORDER
PV70-35 __ __ - __ __ __ - __ - __ __ __ __
Flow Range
Required. See A
Performance
B
Curves.
0
6T
8T
2B
3B
Option(s)
None
Manual
Override
Manual
Override
with Guard
(Blank)
M
G
Porting
Cartridge
Only
SAE 6
SAE 8
1/4 in. BSP*
3/8 in. BSP*
*BSP Body;
U.K. Mfr. Only
Seals
Buna N (Std.) N
Fluorocarbon V
DS
DG
DL
DL/W
Terminations D-Coil
Dual Spades
DIN 43650
Leadwires (2)
Leads w/Weatherpak®
Connectors
Terminations E-Coil
IP69K Rated
ER Deutsch DT04-2P
EY Metri-Pack® 150
Coils with internal diode are
available. Consult factory.
Voltage
0 Less Coil
12 12 VDC
24 24 VDC
2.432.2