1
q
Reducing valves suitable for mobile
applications
q
Compact design
q
Economic Slip-In
The valve PP2P is the directly controlled 3 way reducing
valve controlled by a proportional solenoid. In basic
position (zero coil current) the channel A is connected to
tank via channel T, where as the channel P is closed. In
this state the reduced pressure in channel A equals
zero. With increasing the coil current the solenoid (1)
force gradually increases and shifts, after overcoming
the spring pretension (3), the spool (2) to position
gradually decreasing the opened way A-T until the
pressure in channel A increases due to opening the way
P-A. The reduced pressure is led through the spool
boring into the space behind the control spool, where it
acts on the area of the small control piston. With
increasing the reduced pressure in channel A, the
created force acting in direction of the solenoid force
increases and assist in overcoming the hydrodynamic
forces acting on spool. For every value of the coil
exciting current, there is a state of equilibrium of forces
between the solenoid force, spring force, force acting on
the smaller spool area and hydrodynamic forces. The
reduced pressure is exactly defined by coil current, as
shown on the static pressure characteristic.Once the
fixing screw is released, it is possible to turn the
distributor around its axis by 360° and change thus the
connector socket position (6).
The fixing screw (5) and fork (fastening member) (4)
form also a part of the supply.
In basic variant a part of the valve is exhibited to
influence of the environmental atmosphere and the coil
zinc plated.
HA 5125
7/2012
Size to 06 (03) · 50 bar (725 PSI) · 20 L/min (5.28 GPM)
Proportional Reducing Valves
Slip-In
PP2P
PT
A
A
P T
Replaces
HA 5125 9/2010
Functional Description
2
HA 5125
Solenoid Technical Data
Supply voltage V 12 DC 24 DC
Max. current A 1 1
Rated resistance at 20 °C (68 °F) W 7.2 ± 6,5% 11,2 ± 6,5%
Duty cycle % 100
Pressure tightness (Dynamic) bar (PSI) 50
Wire insulation class 200 from IEC 085
Enclosure type to EN 60 529 IP 67
Control Hz PWM-signal 100 PWM-signal 120
Quenching (E4, E13A) BZW 06-28B BZW06-33B
Valve Technical Data
General Data
Design spool valve
Mounting mode D20
Mounting position unrestricted
Flow direction see the symbol
Maximum fixing bolt tightening torque Nm ( lbf.ft) 9+2 (6.64+1.48)
Ambient temperature, max. °C (°F) -30 ...90 (-22 ...194), +100 °C (212 °F for a short term)
Number of operating positions 3
Valve Cavity
D20 (mm)
W
Proportional Reducing
E4
E3
with AMP-Junior-Timer-connector
with integrated quenching diode and
terminal for AMP-Junior-Timer connector
with DEUTSCH DT 04-2P
with integrated quenching diode and
terminal for DEUTSCH DT 04-2P
E13A
Electronics
Type of construction
1
Ordering Code
Seals
no designation NBR
V FPM (Viton)
Maximum regulated pressure (bar)
for 12 V
20
for 24 V 32
PP2P - / -
Nominal supply voltage
12 12 V DC / 1 A
24 24 V DC / 1 A
Max. input pressure bar (PSI) 50 (725)
Max. regulated pressure bar (PSI) 20 (290) 32 (464)
Max. flow rate P-A L/min (GPM) max. 20 (5.28) max.16 (4.23)
Hydraulic fluid Hydraulic oils of power classes (HL, HLP) to DIN 51 524
Viscosity range mm
2
/s (SUS) 10 ... 800 (49 ....3920)
Fluid temperature range °C (°F) -30 ...90 (-22 ...194), +100 °C (212 °F for a short term)
Maximum degree of fluid contamination Class 21/18/15 to ISO 4406
Response time at 100 % signal ms < 50
E12A
3
HA 5125
p-Q Characteristics Measured at n = 32 mm
2
/s (156 SUS)
Dp-Q Characteristics Measured at n = 32 mm
2
/s (156 SUS)
Pressure difference
p bar ( )D [ PSI ]
(14.5)
(29.0)
(43.5)
()100.5
(58.0)
(72.5)
(87.0)
7
6
5
4
3
1
2
0 4 8 12 16 20
7
6
5
4
3
1
2
0 4 8 12 16 20
Flow Q (GPM)[L/min ]
(1.05) (2.11) (3.17) (4.23) (5.28)
Flow Q (GPM)[L/min ]
(14.5)
(29.0)
(43.5)
(58.0)
(72.5)
(87.0)
A-T
P-A P-A
A-T
(1.05) (2.11) (3.17) (4.23) (5.28)
PP2P1-W3/32-24
PP2P1-W3/20-12
Reduced pressure p [bar PSI ]()
20
10
Current [mA]
0 200 400 600 800 1000 1200
30
(290)
(145)
(435)
Form boring Connecting size Type code Body material Operating pressures
W
G3/8 SB-W3-0103AL Aluminium 250 bar (3626 PSI)
Valve Body
Form boring W3
PP2P1-W3/20-12 PP2P1-W3/32-24
4
HA 5125
Subject to alteration without notice!
ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí
Tel.: +420-499-403111, Fax: +420-499-403421
E-mail: sales.cz@argo-hytos.com
www.argo-hytos.com
Caution!
The technical information regarding the product presented in this catalogue is for descriptive purposes only. It should not
be construed in any case as a guaranteed representation of the product properties in the sense of the law.
Cavity
Valve Dimensions Dimensions in millimeters and (inches)
MIN. 47 (1.850)
37,4 ± 0,1 (1.468/1.476)
32 0,2 (1.252/1.260)–
20,5 ± 0,1 (0.807/0.772)
15,2 0,2 (0.590/0.598)–
MAX. 8 (0.315)
Æ
MAX. 6 (0.236)
Æ
1,5 (0.059)
5 (0.193)
30°
30°
A
A
A
0,05 (0.002)
0,025 (0.001)
20°
24 (0.945)
23,6 + 0,1
1.6
1.6
1.6
M8
15 (0.591)
11 (0.433)
(0.925/0.933)
A
0,025 (0.001)
20 H9 MIN. T. 12,5
17 H9 MIN. T. 45
19 H9 MIN. T. 27,5
0.787 H9 MIN. T. 0.492
(0.6692 H9 MIN. T. 1.772
0.748 H9 1.083
MIN. T.
0,05 (0.002)
A
Æ
23(0.906)
5,4(0.513)
11(0.433)
66,2(2.606)
24(0.945)
84(3.307)
Æ
34,2(1.346)
40(1.575)
M8
1
4
2
3
5
Æ
19,9 f7 (0.783f7)
Æ
18,9 f7 (0.744f7)
Æ
16,9 f7 (0.665f7)
Electronics with E3,E4
IP 67
Spare Parts
Supplied with valve
1 O-Ring14x1,78 NBR 70 (1pc.)
2 O-Ring 16x1,8 NBR 70 (1pc.)
3 O-Ring17x1,8 NBR 70 (1pc.)
4 Fork Slip-In M8
5 Mounting hole M8x16
Seak kit
Type Dimensions, number
Ordering number
Seal kit
Standard (NBR70)
14x1,78 (1pc.) 16x1,8 (1pc.) 17x1,8 (1pc.)
16961300
Fork+Bolt M8
Fork SLIP-IN M8 (1pc.) Bolt M8x16 021143 Zn PO-A (1pc.) 16961500
Electronics with E12A, E13A
IP 67
