DESCRIPTION
A proportional solenoid-operated, two-way, poppet-type, normally closed, screw-in
hydraulic cartridge valve for low-leakage blocking and load-holding applications
OPERATION
When de-energized, the SP08-20 acts as a check valve, allowing flow from 1 to 2,
and blocking flow from 2 to 1. When energized, the 2 to 1 flow path is opened.
Flow is proportional to current applied to the coil. Flow varies with manual override.
Note: If low voltage is expected on the machine, 12 or 24 volt systems will
require the use of 10 volt or 20 volt coils respectively. See “SP Valves and Coil
Operating Parameters,” page 2.002.1.
FEATURES
• Industry-common cavity. • Efficient wet-armature construction.
• Continuous-duty rated coils. • Optional waterproof E-Coils rated up to IP69K.
• Manual override options.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: Without Manual Override: 22 lpm (5.8 gpm) at 34.5 bar (500 psid)
With Manual Override: 18.4 lpm (4.8 gpm) at 34.5 bar (500 psid)
Minimum Operating Dither/Pulse Frequency: 70 Hz
Hysteresis: Less than 5% up to 85% of I-max.; Less than 10% above 85% of I-max.
Max. Internal Leakage: 5 drops per minute at 250 bar (3625 psi)
Temperature: -40 to 120°C with standard Buna seals
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
Filtration: See page 9.010.1; Installation: No Restrictions. See page 9.020.1
Cavity: VC08-2; See page 9.108.1; Cavity Tool: CT08-2XX; See page 8.600.1
Seal Kit: SK08-2X-T; See page 8.650.1
Coil Nut: Part No. 7004400; For E-coils manuf. prior to 1-1-04, see page 3.400.1
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROL
SP08-20 Poppet, 2-Way, Normally Closed
SYMBOLS
USASI/ISO:
2.008.1
PERFORMANCE
FLOW lpm/gpm
49.2/13.0
45.4/12.0
41.6/11.0
37.9/10.0
34.1/9.0
30.3/8.0
26.5/7.0
22.7/6.0
18.9/5.0
15.2/4.0
11.4/3.0
7.6/2.0
3.8/1.0
0
FLOW vs. CURRENT at Various Differential Pressures
32 cSt/150 sus oil at 40C
PERCENT of MAX. CONTROL CURRENT
AMP (10 Volt Coil) 100 Hz Dither
10 20 30 40 50 60 70 80 90 100
0.12 0.23 0.35 0.47 0.59 0.70 0.82 0.94 1.05 1.17
207 bar
3000 psi
104 bar
1500 psi
35 bar
500 psi
17 bar
250 psi
Nominal Flow Rating
11.4
3
22.7
6
34.1
9
45.2
12
56.8
15
FLOW lpm/gpm
35/500
69/1000
103/1500
138/2000
172/2500
207/3000
PRESSURE bar/psi
50% of I-max.
75% of I-max.
I-max.
PRESSURE DROP 2 to 1
at Various Current Levels
3.4/50
6.9/100
10.3/150
13.8/200
17.2/250
20.7/300
24.1/350
27.6/400
31.0/450
7.6
2
15.1
4
22.7
6
30.3
8
FLOW lpm/gpm
PRESSURE bar/psi
PRESSURE DROP 2 to 1
at 110% of I-max.
HYDRAFORCE
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®
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SP08-20
2.008.2
DIMENSIONS
1.40
35.6
3.16
TORQUE
4–5 ft-lbs
(5.4–6.8 Nm)
max.
TORQUE
19–21 ft-lbs
(25.8–28.5 Nm)
80.1
3.12
from
Spotface
COIL MUST BE
INSTALLED WITH
LETTERING UP
79.3
1.82
46.2
1.41
Screen Standard
DIA.
35.8
0.75
ACROSS
19.1
Standard
Coil View
E-Coil
View
FLATS
Manual
Override
J
Manual
Override
M, T, or Y
MATERIALS
Cartridge: Weight: 0.09 kg.
(0.20 lbs.) Steel with hardened
work surfaces. Zinc-plated ex-
posed surfaces. Buna N
O-rings and back-ups standard.
Standard Ported Body: Weight:
0.16 kg. (0.35 lbs.) Anodized
high-strength 6061 T6 aluminum
alloy, rated to 207 bar (3000 psi).
Ductile iron bodies available;
dimensions may differ;
See page 8.008.1
Standard Coil: Weight: 0.11 kg.
(0.25 lbs.) Unitized thermoplas-
tic encapsulated, Class H high
temperature magnetwire. See
page 3.200.1.
E-Coil: Weight: 0.14 kg. (0.3 lbs.);
Perfect wound, fully encapsu-
lated with rugged external metal
shell. Rated up to IP69K with
integral connectors.
Note: See page 3.400.1 for all
E-Coil retrofi t applications.
Voltage
0 Less Coil**
10 10 VDC
†
12 12 VDC
20 20 VDC
†
24 24 VDC
**Includes Coil Nut
†
10 VDC and 20 VDC
coils should be used
for most continuous-
duty applications.
Consult factory.
SP08-20__ - __ __ __ - __ - __ __ __ __ __
TO ORDER
Porting
Cartridge Only 0
SAE 4 4T
SAE 6 6T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
*BSP Body; U.K. Mfr. Only
Termination (VDC)
Std. Coil
DS Dual Spades
DG DIN 43650
DL Leadwires (2)
DL/W Leads w/Weatherpak
®
Connectors
DR Deutsch DT04-2P
Termination (VDC)
E-Coil
ER Deutsch DT04-2P
(IP69K Rated)
EY Metri-Pack
® 150.2A
(IP69K Rated)
Frequency Response
Average Current ±20% Applied
-7
-6
-5
-4
-3
-2
-1
0
1 180
135
90
45
0
0.1 1 10 25
GAIN (dB)
FREQUENCY (Hz)
PHASE (degrees)
PERFORMANCE (cont’d.)
Coils with internal diode are
available. Consult factory.
Recommended Electronic Controllers:
See page 2.001.1 or our Electronics catalog.
Option
None
(Blank)
Manual Override J
Manual Override M
Manual Override T
Manual Override Y
For Manual Override details
see page 1.001.1
Seals
N Buna N (Std.)
V Fluorocarbon
Note: Flow varies with manual
override options; see fl ow
ratings on previous page.
®
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