PROPORTIONAL CONTROLS
Page PT56
W 50/2022
Via Malavolti, 36 - 41122 Modena - ITALY - Phone +39 (059) 254895 - Fax +39 (059) 253512 - mail: tecnord@tecnord.com - www.tecnord.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
DESCRIPTION
8 size, 3/4-16 thread, “Power” series, solenoid operated, 4 way 3 position, Motor Spool, proportional directional
valve.
OPERATION
EQ-S4M, when de-energized, blocks ow at (2) and allows ow between (1), (3) and (4). When coil (S1) is
energized, ow is allowed from (3) to (4), and from (2) to (1). When coil (S2) is energized, ow is allowed from (3)
to (2), and from (4) to (1). Flow is proportional to the current applied to the coil. A compensator must be used to
create a pressure compensated ow control function.
FEATURES
• Hardened parts for long-life.
• Industry common cavity.
• Excellent linearity and low hysteresis characteristics.
• Cartridges are voltage interchangeable.
• Optional coil voltages and terminations available.
• Unitized, molded coil design.
• Continuous duty rated solenoid.
0
8
4
12
Flow vs. Current
16
20
Flow (L/min)
From 2 to 1
From 2 to 3
Current (mA)
200
400 600 800
1000
1200
Regulated Flow (L/min)
0
6
9
3
150
50 200
12
15
100
250
Differential Pressure (bar)
Pressure Compensation from inlet to work port
0
8
4
12
Flow vs. Current
16
20
Flow (L/min)
From 2 to 1
From 2 to 3
Current (mA)
200
400 600 800
1000
1200
Regulated Flow (L/min)
0
6
9
3
150
50 200
12
15
100
250
Differential Pressure (bar)
Pressure Compensation from inlet to work port
Flow Range See curves for various versions
Max System Pressure 3500 PSI (241 bar)
Leakage 10 cu-in/min
160 cc/min bar @ 210 bar
Hysteresis ±5%
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/16/13
Media Operating Temp. Range -30°C / +100°C
Operating Fluid Media General Purpose Hydraulic Fluid
Cartridge Torque Requirements 18 ft-lbs (26 Nm)
Coil Nut Torque Requirements 2-3 ft-lbs (3-4 Nm)
Cavity POWER 4W
Cavity Tools Kit
(form tool, reamer, tap) 40500029
EQ-S4M 4 WAY 3 POSITION, MOTOR SPOOL, PROPORTIONAL DIRECTIONAL VALVE
Current Supply Characteristics PWM (Pulse Width Modulation)
Rated Current Range 400-1300 mA
PWM or Super-Imposed
Dither Frequency 100-200 Hz
Coil Resistance (12 VDC) 6.85 Ohm ±5% at 68°F (20°C)
COIL SPECIFICATIONS
VALVE SPECIFICATIONS
HYDRAULIC SYMBOL
PERFORMANCE
Flow (l/min)
Current (mA)
Flow vs. Current
Coil 12VDC – 100 Hz PWM – Oil 26cSt (121 SSU) @ 50°C (122°F)
Operating curves made with circuit having a pressure drop of 14bar
(3) (1)
(2) (4)
PROPORTIONAL CONTROLS
Page PT57
W 50/ 2022
Via Malavolti, 36 - 41122 Modena - ITALY - Phone +39 (059) 254895 - Fax +39 (059) 253512 - mail: tecnord@tecnord.com - www.tecnord.com
WARNING: the specications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specic application should not be undertaken
without independent study, evaluation, and testing for suitability.
S4P
S4M
Flow (L/min)
Pressure Drop (bar)
0
4
6
2
6 2 8
8
4 10
Pressure Drop vs. Flow
12
3->4
1->4
2->1
2->3
S1
S2
0
8
4
12
Flow vs. Current
16
20
Flow (L/min)
From 2 to 1
From 2 to 3
Current (mA)
200
400 600 800
1000
1200
Regulated Flow (L/min)
0
6
9
3
150
50 200
12
15
100
250
Differential Pressure (bar)
Pressure Compensation from inlet to work port
Pressure Drop vs. Flow
Oil 26cSt (121 SSU)@ 50°C (122°F)
Pressure Compensation from Inlet to Work Port
Oil 26cSt (121 SSU)@ 50°C (122°F)
S4P
S4M
Flow (L/min)
Pressure Drop (bar)
0
4
6
2
6 2 8
8
4 10
Pressure Drop vs. Flow
12
3->4
1->4
2->1
2->3
S1
S2
DIMENSIONS
(for bodies style and sizes see section “Accessories”)
ORDERING INFORMATION
NOTE: for other seals, consult factory.
Approximate Coil Weight: .47 lbs (.21 kg)
EQ-S4M – – – –
OPTIONS BODIES
Buna Standard B0 Up to 8 l/min Blank Without Body
Buna Standard C0 Up to 12 l/min N 3/8” BSP Ports
S #6 SAE Ports
VOLTAGE
12 12 VDC
24 24 VDC
“PJ” COIL TERMINATION
JH DIN 43650 (Hirschmann)
JD Deutsch-Integral DT04-2P
JA AMP Superseal
JJ AMP Jr. Timer
Regulated Flow (l/min)
Differential Pressure (bar)
Flow (l/min)
Pressure Drop (bar)
