SOLENOID OPERATED DIRECTIONAL CONTROLS
4484 Boeing Drive Rockford, IL 61109 • USA • Phone +1 (815) 397-6628 • Fax +1 (815) 397-2526
mail: delta@delta-power.com • www.delta-power.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 44 / 12-2022
DF-S3T DIRECT ACTING SPOOL, 3 WAY 2 POSITION, TRANSMISSION & BRAKE
DESCRIPTION
10 size, 7/8-14 thread, “Delta” series, solenoid operated, 3 way 2 position, transmission & brake spool valve.
OPERATION
When de-energized the DF-S3T allows ow from (3) to (2) and blocks ow at port (1). When energized the valve
allows ow from (1) to (3) and blocks ow at port (2).
OPERATION OF MANUAL OVERRIDE OPTION: to override, pull knob out. On the detented version, after
pulling knob out twist 180 degrees and release. The valve will remain in that position.
FEATURES
• Hardened parts for long life.
• Efcient wet-armature construction.
• Cartridges are voltage interchangeable.
• Manual override option.
• Industry common cavity.
• Unitized, molded coil design.
• Continuous duty rated solenoid.
• Optional coil voltages and terminations.
• Optional “I” Coil: Weatherproof, Thermal Shock, Immersion Safe.
Nominal Flow 8 GPM (30 LPM)
Rated Operating Pressure 1500 PSI (103 bar)
Typical Internal Leakage (150 SSU) 5 cu in/min (82 ml/min)
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/16/13
Media Operating Temp. Range -40° to 250°F (-40° to 120°C)
Weight .28 lbs (.12 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 30 ft-lbs (40.6 Nm)
Coil Nut Torque Requirements 4-6 ft-lbs (5.4-8.1 Nm)
Cavity DELTA 3W
Cavity Tools Kit
(form tool, reamer, tap) 40500001
Seal Kit 21191204
VALVE SPECIFICATIONS
Actual Test Data (Cartridge Only)
0
50
100
0
150
2 4 6 8
0
Pressure Drop (PSI)
5
10
0
Flow (GPM)
5 10 15 20 25 30
Pressure Drop (bar)
Flow (LPM)
Port 1 to 3 (eng) Port 3 to 2 (de-eng)
PERFORMANCE
HYDRAULIC SYMBOL
Contamination Tolerant Product.
This valve is designed for transmission and brake
applications. Consult factory for alternate low
wattage coil options.
1
2
3
SOLENOID OPERATED DIRECTIONAL CONTROLS
4484 Boeing Drive Rockford, IL 61109 • USA • Phone +1 (815) 397-6628 • Fax +1 (815) 397-2526
mail: delta@delta-power.com • www.delta-power.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
W 44/ 12-2022
DIMENSIONS
ORDERING INFORMATION
OPTIONS BODIES
Buna Standard 00 Blank Without Body
Viton Standard V0 N 1/4 NPTF Ports
Buna, Override 0M S #6 SAE Ports
Viton, Override VM
Buna, Override, Non-detent B1
Viton, Override, Non-detent V1
VOLTAGE
Buna, Screen A0 06 6 VDC
Viton, Screen W0 12 12 VDC
Buna, Screen, Override, Non-detent B3 24 24 VDC
Viton, Screen, Override, Non-detent V3 36 36 VDC
Buna, Screen, Override, Detent B4 48 48 VDC
Viton, Screen, Override, Detent V4 25 24 VAC
11 120 VAC
Note: use screen only if ow 22 220 VAC
direction is from (1) to (2) 44 440 VAC
“D” COIL TERMINATION
(All DC Except as Noted)
IMMERSION PROOF “D” TYPE
DL Double Lead SS Single Spade IA “I” Coil AMP Superseal - Integral
DT Deutsch on Leads DT04-2P DS Double Spade ID “I” Coil - Deutsch - Integral DT04-2P
ML Metri-Pack on Leads HC DIN 43650 (Hirschmann) - (AC&DC) IJ “I” Coil AMP Jr. Timer - Integral
PL Packard on Leads CL Conduit Lead - (AC Only) IM “I” Coil - Metri-Pack - Integral
WL Weatherpack on Leads DI Deutsch - Integral DT04-2P
DF-S3T – – – –
Approximate Coil Weight: .74 lbs (.33 kg)
DELTA POWER CO
2.35
[59.6]
3.35
[85.1]
1.81
[46.0]
.22
[5.6]
7/8-14 UNF
2A THREAD
1.00 [25.4] HEX
1.56
[39.6]
1.83
[46.6]
.75
[19.1]
HEX NUT
SEE COIL DATA
FOR TERMINATIONS
STANDARD
MANUAL OVERRIDE
7/16-20 UNF
2A THREAD
DELTA POWER CO.
2.28
[58.0]
2.50
[63.5]
1.37
[34.8]
.63
[15.9]
2.12
[53.8]
2.50
[63.5]
2.25
[57.2]
1.25
[31.8]
.13
[3.2]
1.56
[39.6]
1.50
[38.1]
.75
[19.1]
.28 [7.14] DIA.
MTG. HOLES
2X
#6 SAE PORTS
3X
BODY WEIGHT: .76 lbs (.35 kg)