DESCRIPTION
A solenoid-operated, 2-way, normally closed, direct-acting, poppet-type,
bi-directional blocking, screw-in hydraulic cartridge valve, designed for low leakage
in load-holding applications.
OPERATION
When de-energized, the SV08-28 blocks flow in both directions. When energized, the
valve’s poppet opens on its seat, allowing flow from 2 to 1
or 1 to 2.
Operation of Manual Override Option: To override, push and hold override button.
FEATURES
• Continuous-duty rated coil.
• Optional coil voltages and terminations.
• Cartridges are voltage interchangeable.
• Optional waterproof E-Coils rated up to IP69K.
• Hardened seat for long life and low leakage.
• Manual override option.
• Industry common cavity.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: 11.4 lpm/ 3.0 gpm
Internal Leakage: 5 drops/minute maximum at 207 bar (3000 psi)
Operating Temperature: With Buna N or Polyurethane seals: –25 to 100°C
With Fluorocarbon seals: –15 to 100°C
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Response Time: First indication of change of state with 100% voltage supplied at
80% of nominal flow rating: Energized: 50 msec.; De-energized: 16 msec.
Initial Coil Current Draw at 20°C: Standard Coil: 1.2 amps at 12 VDC;
0.13 amps at 115 VAC (full wave rectified).
E-Coil: 1.4 amps at 12 VDC; 0.7 amps at 24 VDC
Minimum Pull-in Voltage: 85% of nominal at 207 bar (3000 psi)
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: If using an orifice disc with this product, an offset orifice disc is required;
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-M; See page 8.650.1
Coil Nut: Part No. 7004400;
For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.
ISO SYMBOL
1.089.1
PERFORMANCE (Cartridge Only)
SOLENOID VALVES
HYDRAFORCE
.com
®
17.2/250
13.8/200
10.3/150
6.9/100
3.4/50
3.8
1.0
7.6
2.0
11.4
3.0
FLOW lpm/gpm
PRESSURE DROP bar/psi
1 to 2 ——; 2 to 1 - - - -
32 cSt/150 sus oil at 40°C
SV08-28 Poppet, 2-Way, N.C., Bi-Directional Blocking
Blue rectangles are links to other catalog pages.
SV08-28
DIMENSIONS
MATERIALS TO ORDER
Cartridge: Weight: 0.18 kg.
(0.40 lbs.) Steel with hardened
work surfaces. Zinc-plated
exposed surfaces. Buna N
O-rings and polyester elastomer
back-up 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 thermoplastic
encapsulated, Class H high
temperature magnetwire;
See page 3.200.1
E-Coil: Weight: 0.14 kg. (0.3 lbs.)
Fully encapsulated with rugged
external metal shell. Rated up to
IP69K with integral connectors.
Note: See page 3.400.1 for all
E-Coil retrofit applications.
Option
None
(Blank)
Manual Override
without Knob P
Manual Override
with Knob K
1.089.2
SV08-28__ - __ __ __ - __ - __ __ __ __ __
Seals
Buna N (Std.) N
Fluorocarbon V
Polyurethane P
Termination (VDC)
E-Coil
ER Deutsch DT04-2P,
IP69K Rated
EY Metri-Pack
® 150,
IP69K Rated
EL Leadwires (2), IP69K Rated
EG DIN 43650, IP65 Rated
Termination (VDC)
Std. Coil
DS Dual Spades
DG DIN 43650
DL Leadwires (2)
DL/W Leads w/Weatherpak
®
Connectors
DR Deutsch DT04-2P
Termination (VAC)
Std. Coil
AG DIN 43650
AP 1/2 in. Conduit
Coils with internal diode are available. Consult factory.
E-Coil
10 10 VDC
12 12 VDC
20 20 VDC
24 24 VDC
Voltage
Std. Coil
0 Less Coil**
10 10 VDC
†
12 12 VDC
24 24 VDC
36 36 VDC
24 24 VAC
115 115 VAC
230 230 VAC
**Includes Std. Coil Nut
†
DS, DW or DL
terminations only.
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
®
HYDRAFORCE
HYDRAFORCE
.com
®
1.40
35.6
2.71
TORQUE
4–5 ft-lbs
(5.4–6.8 Nm)
ACROSS
FLATS
Manual
Override
‘P’ ‘K’
TORQUE
19–21 ft-lbs
(25.8–28.5 Nm)
68.9
0.57
14.5
0.75
19.1
0.70
17.8
1.41
DIA.
35.8
Standard
Coil View
E-Coil
View
NOTE: If using an orifice disc with this product,
an offset orifice disc is required;
See page 9.020.1
Blue rectangles are links to other catalog pages.
