SF20-23 Poppet, 2-Way, Normally Open
USASI: ISO:
PERFORMANCE (Cartridge Only)
1.056.1
SYMBOLS
SOLENOID VALVES
HYDRAFORCE
.com
®
5.5/80
4.1/60
2.8/40
1.4/20
38
10
227
60
189
50
FLOW lpm/gpm
PRESSURE DROP bar/psi
to ~ without cavity undercut ——
to ~ with cavity undercut — —
~ to without cavity undercut – – –
~ to with cavity undercut - - - -
32 cSt/150 sus oil at 40°C
265
70
6.9/100
8.3/120
9.7/140
11.0/160
12.4/180
76
20
151
40
114
30
303
80
DESCRIPTION
A solenoid-operated, 2-way, normally open, piloted poppet-type, screw-in
hydraulic cartridge valve, intended to act as a blocking or load-holding device
for applications requiring low internal leakage.
OPERATION
When energized, the SF20-23 acts as a check valve, allowing fl ow from ➀ to ➁, while
blocking fl ow from
➁ to ➀.
When de-energized, the cartridge’s poppet lifts to open the
➁ to ➀ fl ow path. In this
mode, bidirectional fl ow is allowed.
FEATURES
• Continuous-duty rated coil.
• Hardened seat for long life and low leakage.
• Optional coil voltages and terminations.
• Cartridges are voltage interchangeable.
• Unitized, molded coil design.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
RATINGS
Operating Pressure: Maximum: 345 bar (5000 psi); Minimum: 1.4 bar (20 psi)
Flow: Up to 303 lpm (80 gpm)
Internal Leakage: 10 drops/minute max. at 345 bar (5000 psi)
Operating Temperature: -40 to 120°C with standard Buna N seals
-30 to 205°C with Fluorocarbon seals
-50 to 80°C with Polyurethane seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
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 345 bar (5000 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: VC20-2; See page 9.120.1
Cavity Tool: CT20-2XX; See page 8.600.1
Seal Kit: SK20-2x-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.
Blue rectangles are links to other catalog pages.
SF20-23
DIMENSIONS
1.056.2
®
HYDRAFORCE
HYDRAFORCE
.com
®
1.88
DIA.
ACROSS FLATS
47.6
3.03
76.9
2.25
57.2
3.34
84.7
08
Size
E-Coil
View
TORQUE:
65 to 75 ft-lbs
88.4 to 102 Nm
TORQUE:
5 to 7 ft-lbs
6.8 to 9.5 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
1.41
DIA.
35.8
1.40
35.6
08
Size
E-Coil
View
MATERIALS
Cartridge: Weight: 0.61 kg.
(1.35 lbs.); Steel with hardened
work surfaces. Zinc-plated
exposed surfaces; Buna N
O-rings with polyester elastomer
back-up standard.
Standard Ported Body: Weight:
4.51 kg. (9.94 lbs.) Ductile iron
standard; rated to 345 bar
(5000 psi). See page 8.020.1.
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.
SF20-23__ - __ __ __ - __ - __ __ __ __ __
TO ORDER
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.
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
E-Coil
10 10 VDC
12 12 VDC
20 20 VDC
24 24 VDC
Option
None
(Blank)
Porting
Cartridge Only 0
SAE 16 16TD
SAE 20 20TD
Blue rectangles are links to other catalog pages.