SV08-21 Poppet, 2-Way, Normally Open
DESCRIPTION
A solenoid-operated, 2-way, piloted, poppet-type, normally open, screw-in, hydraulic
cartridge valve designed for low leakage in load-holding applications.
OPERATION
When de-energized, the SV08-21 allows fl ow from ➁ to ➀. Flow from ➀ to ➁ is
severely restricted in this mode. If the
➁ to ➀ path is required see model SV08-23,
page 1.050.1.
When energized, the valve’s poppet closes on its seat, blocking fl ow from
➁ to ➀.
In this mode the cartridge will allow
➀ to ➁ fl ow after overcoming the solenoid force
(requires 3.4 to 10.3 bar / 50 to 150 psi).
Operation of Manual Override Option: To override, push and hold override button.
FEATURES
• Continuous-duty rated coil.
• Hardened seat for long life and low leakage.
• Optional coil voltages and terminations.
• Effi cient wet-armature construction.
• Cartridges are voltage interchangeable.
• Unitized, molded coil design.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
• Compact size.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 207 bar (3000 psi)
Temperature: -40 to 120°C with standard Buna seals
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 fl ow 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 rectifi ed).
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: 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. 7004410;
For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.
SYMBOLS
USASI: ISO:
1.030.1
8.6/125
6.9/100
5.2/75
3.4/50
1.7/25
7.5
2
15.1
4
22.7
6
30.2
8
FLOW lpm/gpm
PRESSURE DROP bar/psi
37.9
10
➁ to ➀ de-energized ——
➀ to ➁ energized - - - -
32 cSt/150 sus oil at 40°C
PERFORMANCE (Cartridge Only)
SOLENOID VALVES
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SV08-21
DIMENSIONS
MATERIALS TO ORDER
Cartridge: Weight: 0.09 kg.
(0.20 lbs.) Steel with hardened
work surfaces. Zinc-plated
exposed surfaces. Buna N
O-rings and 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 retrofi t applications.
Option
None
(Blank)
Manual Override
without Knob P
Manual Override
with Knob K
1.030.2
1.40
35.6
2.21
56.1
1.41
E-Coil
View
DIA.
35.8
Standard
Coil View
SV08-21__ - __ __ __ - __ - __ __ __ __ __
Seals
Buna N (Std.) N
Fluorocarbon V
Polyurethane P
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
Termination (VDC)
E-Coil
ER Deutsch DT04-2P
(IP69K Rated)
EY Metri-Pack
® 150
(IP69K Rated)
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
48 48 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
®
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