Hydraulics
B11
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
PE-PC.p65, dd, an
BB
General Description
The PE and PC series proportional pressure reducing
valves have a proportional solenoid operated pilot
stage and sliding spool main stage.
The power supply voltage and input command signals
are connected via a single seven-pin electrical plug
connector. Input command signals can be in the range
0 to 10V or 0 to 20mA, selected in the valve ordering
code. Ramp times for increasing and decreasing pres-
sure can be independently set by two potentiometers.
MIN and MAX potentiometers allow the setting of the
minimum pressure and the maximum pressure. These
can be adjusted to scale the pressure range to corre-
spond to the full range of the command input signal.
Features
•
Standard DIN/ISO interfaces.
•
Integrated valve electronics.
•
Optional reverse flow check valve.
Technical Information Series PE and PC
B
Y
A
Specifications
Interface DIN NG10 NG25 NG32
ISO/CETOP 05 08 10
Nominal Flow Q LPM (GPM) 150 (40) 250 (66) 350 (92)
Weight kg (lbs.) 5.5 (11.7) 6.5 (14.3) 11.0 (24.3)
Maximum Bar (PSI) Pressure port A, B:
Operating Pressure 350 (5075);
Tank connection Y:
not pressurized
Adjustment Range Bar (PSI) 10 to 350 (150 to 5075)
Mounting Pattern DIN 24340 Form D
ISO 5781 and ISO 6264
Mounting Orientation Any
Supply Voltage Range VDC 14.5 to 30
Ripple in the
Supply Voltage % 5 maximum
Current Consumption Amps 2.8 maximum
Command Signal (Impedence) 0 to 10V (10K ohms)
(Select by ordering code) 0 to 20mA (500 ohms)
Reference Output +10V/max. 10mA
Adjustment Range
of the Ramp Time 0 to 5 S
Ambient Temperature Range -40°C to +70°C
(-40°F to +158°F)
Recommended Cable 18 gauge, shielded,
up to 15m (50 ft.)
Protection Class IP54 (NEMA 1)
7-Pin Plug (Main Connection) 5004072
Hydraulics
B12
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
PE-PC.p65, dd, an
B
Technical Information
Series PE and PC
Electronics Block Diagram
Connector Wiring Diagram
Linea-
rization
Differetial
amplifier
Voltage
converter
Power
stage
Ramp
generator
D
Voltage
input
0...+ 10V
Current
input
0...+ 20mA
Protective Earth
Select by
Ordering Code
Reference output only
for electronic design type F
+10V
0V
N.C.
Supply
voltage
24V
0V
E
G
(+) A
(
_
)
B
F
(+) C
MIN MAX
U
I
Dither
Performance Curves
0
50725
1001450
1502175
2002900
250
3625
3004350
3505075
Control/Secondary Pressure
Bar
PSI
Bar
PSI
Supply/Primary Pressure
PE and PC Performance
0
10050
1450725
200150
29002175
350300
250
507543503625
Constant
Command
Signal
(Typical)
Command Signal (%)
0 20 40 60 80 100
0
20
60
40
80
100
Nominal Pressure (%)
Signal/Pressure Curve
±5%
Input Signal
=
~
A
F
B
E
C
G
D
+
Supply
0...+20mA
0
0
Input Signal
=
~
A
F
B
E
C
G
D
+
Supply
0...+10V
0
0
=
~
A
F
B
E
C
G
D
+10V
10k
+
0
Supply
Electronic Design F Electronic Design G
Hydraulics
B13
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
PE-PC.p65, dd, an
BB
Dimensions
PE and PC10M
Inch equivalents for millimeter dimensions are shown in (**)
PE and PC25M
Inch equivalents for millimeter dimensions are shown in (**)
Series PE and PC
R.S.BSc
1 cm
R.S.BSc
1 cm
100.0
(3.94)
R.S.BSc
1 cm
R.S.BSc
1 cm
P
A
T
273.0
(10.75)
32.0
(1.26)
60.3
(2.37)
45.3
(1.78)
79.4
(3.13)
R.S.BSc
1 cm
A
B
Y
X
11.0
(0.43)
203.0
(7.99)
~220.0
(8.66)
R.S.BSc
1 cm
R.S.BSc
1 cm
P
A
T
88.0
(3.46)
36.0
(1.26)
203.0
(7.99)
R.S.BSc
1 cm
R.S.BSc
1 cm
B
R.S.BSc
1 cm
R.S.BSc
1 cm
11.0
(0.43)
268.0
(10.55)
50.0
(1.97)
66.7
(2.63)
42.8
(1.69)
A
B
X
Y
~220.0
(8.66)
Hydraulics
B14
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
PE-PC.p65, dd, an
B
Dimensions
Series PE and PC
PE and PC32M
Inch equivalents for millimeter dimensions are shown in (**)
119.0
(4.69)
252.0
(9.92)
35.0
(1.38)
47.0
(1.85)
42.0
(1.65)
42.0
(1.65)
248.0
(9.76)
96.8
(3.81)
~20.0
(0.79)
R.S.BSc
1 cm
R.S.BSc
1 cm
P
A
T
A
Y
X
B
11.0
(0.43)
Hydraulics
B15
Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio 44035 USA
Proportional Pressure Reducing Valves
Catalog HY14-2550/US
PE-PC.p65, dd, an
BB
Technical Information
Series PE and PC
Mounting Pattern
Nominal d1 d2 d3 d4 b1 b2 m1 m2 m3
Size max. ±0.2 H12 min. max. ±0.2 ±0.2 ±0.2
10 14.7 M10 4.8 7.5 84.0 92.0 42.9 35.7 31.8
(0.92) M10 (0.19) (0.30) (3.31) (3.62) (1.69) (1.41) (1.25)
25 23.4 M10 4.8 7.5 97.0 105.0 60.3 49.2 44.5
(0.92) M10 (0.19) (0.30) (3.82) (4.31) (2.37) (1.94) (1.75)
32 32.0 M10 4.8 7.5 114.0 10.0 84.1 67.5 62.7
(0.92) M10 (0.19) (0.30) (4.49) (0.39) (3.31) (2.66) (2.47)
Nominal m4 m5 m6 m7 m8 n1 n2 n3 n4
Size ±0.2 ±0.2 ±0.2 min. min. ±0.2 ±0.2 ±0.2 ±0.2
10 21.4 – 21.4 7.1 61.0 66.7 58.7 33.3 7.9
(0.84) – (0.84) (0.28) (2.40) (2.63) (2.31) (1.31) (0.31)
25 39.7 – 20.6 11.1 78.0 79.4 73.0 39.7 6.4
(1.56) – (0.81) (0.44) (3.07) (3.13) (2.87) (1.56) (0.25)
32 59.6 42.1 24.6 16.7 102.0 96.8 92.9 48.8 4.0
(2.35) 1.66 (0.97) (0.66) (4.02) (3.81) (3.66) (1.92) (0.16)
Ordering Information
Bolt Tightening Sealing Kits
Nominal (Quantity) Torque
Size Subplate Bolt Kit Size (Nm) Nitrile Fluorocarbon
NG10 SPP3M4B910 BK389 (4x) M12x70 65 SK-PE10MM10 SK-PE10MV10
NG25 SPP6M8B910 BK485 (4x) M16x110 65 SK-PE25MM10 SK-PE25MV10
NG32 SPP10M12B910 BK390 (6x) M10x50 65 SK-PE32MM10 SK-PE32MV10
Accessories
Not
required
for ordering
Code Description
10 NG10/CETOP 5
25 NG25/CETOP 8
32 NG32/CETOP 10
Weight: NG10 5.5 kg (11.7 lbs.)
NG25 6.5 kg (14.3 lbs.)
NG32 11.0 kg (24.3 lbs.)
Pressure
Range
Size and
Interface
Valve
Type
Integrated
Electronics
Pilot Oil
Guide
Spring
1 Bar
Seal
Design
Series
M
Manifold
Mount
T
Options
9
Electronic
Attachments
0
Code Description
F Voltage Input
0 ... +10V (standard)
with reference output +10V
G Current Input
0 ... 20mA
Electronic
Design
Normally
Closed
1R
Code Pressure Range
Bar (PSI)
10 105 (1522)
17 175 (2537)
25 250 (3625)
35 350 (5075)
Code Description
N Nitrile
V Fluorocarbon
Supply Drain
Internal External
Code Description
PE Proportional Pressure
Reducing Valve
without check valve
PC Proportional Pressure
Reducing Valve
with check valve
Code Description
Omit Standard
U Quick Pressure
Unloading
