SV20-28 Poppet, 2-Way, N.C., Bi-Directional Blocking
PERFORMANCE (Cartridge Only)
1.096.1
SYMBOL
SOLENOID VALVES
HYDRAFORCE
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®
DESCRIPTION
A solenoid-operated, two-way, normally closed, internally piloted, poppet-type,
bi-directional blocking, screw-in hydraulic cartridge valve, designed for low leakage
in load-holding applications.
OPERATION
When de-energized, the SV20-28 blocks fl ow in both directions. When energized,
the valve’s poppet opens on its seat, allowing fl ow from
➁ to ➀ or ➀ to ➁.
FEATURES
• Continuous-duty rated coil.
• Optional coil voltages and terminations.
• Effi cient wet-armature construction.
• Cartridges are voltage interchangeable.
• Waterproof E-Coils rated up to IP69K.
• Hardened seat for long life and low leakage.
• Unitized, molded coil design.
• Cost-effective cavity.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: Up to 303 lpm (80 gpm)
Internal Leakage: 5 drops/minute max. at 207 bar (3000 psi)
Operating Temperature: -40° to 100°C (-40° to 212° F) with standard Buna N seals
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Initial Coil Current Draw at 20°C: Standard D-Coil: 1.2 amps at 12 VDC;
E-Coil: 1.4 amps at 12 VDC; 0.7 amps at 24 VDC
Minimum Pull-in Voltage: See Chart on this page.
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: VC20-2; See page 9.120.1
Cavity Tool: CT20-2XX; See page 8.600.1
Seal Kit: SK20-2x-M; See page 8.650.1
E-Coil Nut: Part No. 7085180
1
2
5.5/80
4.1/60
2.8/40
1.4/20
38
10
227
60
189
50
FLOW lpm/gpm
DIFFERENTIAL PRESSURE bar/psi
32 cSt/150 sus oil at 40°C
265
70
6.9/100
8.3/120
9.7/140
76
20
151
40
114
30
303
80
1 to 2
2 to 1
110
120
60 7050403020100-20 -10-30-40
100
80
90
70
60
50
% OF RATED VOLTAGE
AMBIENT TEMPERATURE (°C)
CONTINUOUS DUTY OPERATING RANGE
Minimum Voltage at the Coil Required for Pull-In
32 cSt/150 sus oil at 40°C
Operating Range
Blue rectangles are links to other catalog pages.
SV20-28
DIMENSIONS
1.096.2
®
HYDRAFORCE
HYDRAFORCE
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®
MATERIALS
Cartridge: Weight: 0.65 kg.
(1.43 lbs.); Steel with hardened
work surfaces. Zinc-plated
exposed surfaces; Buna N
O-rings with polyester elastomer
back-up standard.
Standard Ported Body: Weight:
1.71 kg. (3.8 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi).
Ductile iron bodies are available;
dimensions may differ.
See page 8.020.1.
E-Coil: Weight: 1.36 kg. (3.0 lbs.)
Fully encapsulated with rugged
external metal shell. Rated up to
IP69K with integral connectors.
See page 3.400.1
SV20-28 - __ __ __ - __ - __ __ __ __ __
TO ORDER
Seals
Buna N (Std.) N
Fluorocarbon V
Porting
Cartridge Only 0
SAE 16 16T
SAE 20 20T
Note: This is a 20-size valve which fi ts into a
20-size cavity, but uses a 12-size coil.
Voltage
0 Less Coil
12 12 VDC
24 24 VDC
36 36 VDC
48 48 VDC
Terminations (VDC)
EL Leadwires (2), IP65 Rated
ES Dual Spades, IP65 Rated
EG DIN 43650, IP65 Rated
EW Leads w/Weather-Pack
®
Connector, IP65 Rated
EY Metri-Pack
® 150 Connector,
IP69K Rated
ER Deutsch DT04-2P Connector,
IP69K Rated
Other coil voltages
may be available for
OEM applications.
Consult factory.
1.88
DIA.
ACROSS FLATS
47.6
3.88
98.5
2.25
57.2
TORQUE:
65 to 75 ft-lbs
88.4 to 102 Nm
TORQUE:
7 to 10 ft-lbs
9.4 to 13.4 Nm
4.00
101.6
1.28
32.5
3.63
92.1
0.19
4.8
3.25
82.6
4.00
101.6
0.34
8.7
1.56
39.6
1.50
38.1
3.00
76.2
2.19
55.6
1.77
44.9
12-Size
E-Coil
12-Size
E-Coil
HYDRAFORCE
For EY or ER Coil with Zener Diode, add
“/Z” to option code. For example: “EY/Z”.
See coil option info. on pages 3.400.1
Blue rectangles are links to other catalog pages.
