PV72-21 Proportional Flow Control Cartridge,
USASI/ISO:
SYMBOLS
2.340.1
PERFORMANCE
20
PERCENT OF MAX. CONTROL CURRENT
FLOW lpm/gpm
Flow vs. Current
Input Pressure: 240 bar/3500 psi
12V Coil; 110 Hz PWM
32 cSt/150 ssu oil at 40°C
40 60 80 100
75.6/20
60/16
45/12
30/8
15/4
@PREG 207 bar/3000 psi
DESCRIPTION
A solenoid operated, electrically-variable, two-port, pressure-compensated, spool-
type, normally open when de-energized, proportional fl ow control valve.
OPERATION
The PV72-21 will regulate fl ow out of port ➁ regardless of system working pressure.
With an increasing current applied to the solenoid, the PV72-21 will decrease output
fl o w .
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 until positive stop
is found.
FEATURES
• Excellent linearity and hysteresis
characteristics.
• Hardened spool and cage for long life.
• Effi cient wet armature construction.
• Optional coil voltages and terminations.
RATINGS
Operating Pressure: Port ➀: 240 bar (3500 psi); Port ➁: 207 bar (3000 psi)
Regulated Flow Rate: 56 lpm (15 gpm)
Internal Leakage: .38 lpm (0.1 gpm) 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: VC12-2, Cavity Variation “B”; See page 9.112.1
Cavity Tool: CT12-2X-XX; See page 8.600.1
Seal Kit: SK12-2X-M; See page 8.650.1 for seal kit options
and appropriate seals based on application temperature range.
• Cartridges voltage interchangeable.
• Unitized, molded coil design.
• Coil waterproofi ng standard.
• Manual override option.
Coil
Voltage
12 VDC
24 VDC
Threshold
Current
150 ± 100 mA
75 ± 50 mA
Max. Control
Current
1350 ± 150 mA
675 ± 75 mA
69
1000
PRESSURE DROP bar/psi
FLOW lpm/gpm
Regulated Flow vs. Pressure Drop
Input Pressure: 240 bar/3500 psi
12V Coil; 110 Hz PWM
32 cSt/150 ssu oil at 40°C
138
2000
207
3000
75.6/20
60/16
45/12
30/8
15/4
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROLS
HYDRAFORCE
.com
®
Recommended Electronic Controllers:
See page 2.001.1 or our Electronics catalog.
Blue rectangles are links to other catalog pages.
PV72-21
2.340.2
Normally Open
1.25
31.8
1.98
50.3
1.06
27.0
1.13
28.6
ACROSS FLATS
ACROSS
FLATS
TORQUE: 10-12 ft-lbs
(14-16 Nm)
COIL MUST BE
INSTALLED WITH
LETTERING UP
MANUAL
OVERRIDE
OPTION
"G"
MANUAL
OVERRIDE
OPTION
"M"
INCH
MILLIMETRE
2.93
74.4
1.74
44.1
0.34
8.6
0.23
5.8
0.20
5.1
1.06
26.9
2.50
63.5
2.50
63.5
3.43
87.1
2.44
62.0
3.37
85.6
1.18
30.0
0.90
22.9
TORQUE:
30 ft-lbs
(40.6 Nm)
max.
DIMENSIONS
®
HYDRAFORCE
HYDRAFORCE
.com
®
Cartridge: Weight: 0.32 kg. (0.7 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces. Buna
N O-rings and polyester elastomer
back-ups standard.
Standard Ported Body: Weight:
0.59 kg. (1.3 lbs.); 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.
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
PV72-21
__ - __ __ __ - __ - __ __ __ __
Voltage
0 Less Coil
12 12 VDC
24 24 VDC
Coils with internal diode are
available. Consult factory.
Option(s)
None
(Blank)
Manual
Override M
Manual
Override
with Guard G
Porting
Cartridge Only 0
SAE 10 10T
SAE 12 12T
Seals
Buna N (Std.) N
Fluorocarbon V
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.
