EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-310.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
PPD22A - Proportional Valve
Proportional Reducing/Relief, Spool
20 L/min (5.4 USgpm) • 210 bar (3000 psi)
Description
This is a low pressure
proportional direct acting
pressure reducing valve with
a reverse relief screw in
cartridge valve. It is ideal for
the control of compensators
on a pump or brake and clutch
systems on a transmission
circuit.
Operation
In the de-energized position,
pressure inlet port 2 is open
to reduced pressure port 1,
return port 3 is closed . As
electrical current is increased,
the setting of the valve
increases allowing pressure
at port 1 to increase. If the
pressure at port 1 exceeds the
setting of the valve, the spool
will shift further and relieve to
port 3.
Features
• High flow capacity with
reduced space requirements.
• No dynamic seals.
• Standard valve bodies and
common cavities.
• One-piece encapsulated coil
with minimal amperage draw.
• Oil immersed armature
solenoid.
• Various coil terminals and
voltages.
• Coil interchangeability with
valves of same series.
• Manual override, seal
variations and other options
available.
• Sealed coil arrangement to
protect stem from corrosion.
Ratings and Specifications
Performance data is typical with fluid at 32 cST (150 SUS)
Max inlet pressure 210 bar (3000 psi)
Max regulated pressure 19 watt coil 24 bar,
29 watt coil 28 bar
Max flow 18.6 L/min (5 USgpm) 19 watt coil
20 L/min (5.4 USgpm) 29 watt coil
Hystersis 16% max without PWM
Frequency 200 Hz
Dead band 19% approx
Response time 10 = 2-193 ms, 20 = 3-395 ms, 35 = 2-358 ms
Internal leakage Up to 50 mL/min at 210 bar differential
Temperature range -30° to 120°C (-22° to 248°F)
Cavity A3531 (see Section M)
Torque cartridge into cavity 30 Nm (22 lbs ft)
Mounting position Unrestricted
Fluids All general purpose hydraulics fluids such as: MIL-H-5606, SAE 10, SAE 20, etc
Seal material Standard nitrile with PTFE back up rings
Filtration BS5540/4 Class 18/13 (25 micron or better)
Nominal viscosity range 15 to 250 cSt
Standard housing materials Aluminium
Coil weight .3 kg (.6 lbs)
Weight cartridge only .25 kg (.55 lbs)
Seal kit SK1119 (Nitrile) SK1119V (Viton
®
)
Coil part number C16*-*/19 (PPD21A) C16-*-*/29 (PPD21H)
Voltage available 12, 24 VDC
Viton is a registered trademark of E.I. DuPont
Performance Data
Sectional View
Pressure Drop Performance Curve
3 (Tank)
2 (Pres)
1 (Reg)
Flow - L/min
Pressure - psi
Pressure - bar
Flow - US gpm
0 4 8 12 16 20
0 1.06 2.12 3.18 4.24 5.3
725
580
435
290
145
0
50
40
30
20
10
0
1-3
2-1
Pressure - psi
Pressure - bar
% of rated current
0 20 40 60 80 100
432
360
288
216
144
72
0
30
25
20
15
10
5
0
PPD2 2A
PPD2 2AH
2
3
1
EATON Screw-In Cartridge Valves E-VLSC-MC001-E December 2009 B-311.A
An Eaton Brand
B
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
PPD22A - Proportional Valve
Proportional Reducing/Relief, Spool
20 L/min (5.4 USgpm) • 210 bar (3000 psi)
Model Code
1
Function
PPD22A - Standard
PPD22H - Heavy duty
2
Seal Material
N - Nitrile
V - Viton
®
2
3
4 5
1
PPD22A N H 24 3W
Code Port Size Housing Number
Aluminium Single
0 Cartridge only
2W 1/4" BSP A7724
3W 3/8" BSP A6684
6T 3/8" SAE B6516
See section J for housing details.
5
Port Size
3
Coil Termination
H - DIN43650
F - Flying Lead
DM - Deutsch moulded
Other terminations available
on request.
4
Voltage
12 - 12 VDC
24 - 24 VDC
Dimensions
mm (inch)
Installation DrawingCartridge Only
– –
92.0
(3.62)
7.0
(0.28)
39.8
(1.57)
21.0
(0.82)
49.0 (1.9)
24.0 A/F
3/4”-16-UNF-2A
Ø14.2 (0.56)
Ø15.8 (0.62)
50.0
(1.97)
16.9
(0.67)
3 (Tank)
2 (Pressure)
1 (Regulated)
35.5 (1.40)
28.6
(1.13)
57.2 (2.25)
4.8
(0.19)
38.1
(1.50)
11.1
(0.44)
28.3
(1.11)
12.7
(0.50)
2 holes
Ø7.1 (0.28)
thro’
47.6
(1.87)
14.7
(0.58)
25.4
(1.00)
1
2
3
