Page PD4
PROPORTIONAL CONTROLS
Via Malavolti, 36 • 41122 Modena • ITALY • Phone +39 (059) 254895 • Fax +39 (059) 253512
mail: tecnord@tecnord.com • www.tecnord.com
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 5 / 2018
IP-DAR-250 DIRECT ACTING PROPORTIONAL, PRESSURE REDUCING/RELIEVING, SLIP-IN TYPE
DESCRIPTION
Special cavity, slip-in style ange retained, direct acting proportional, pressure reducing/relieving valve.
OPERATION
The IP-DAR-250 generates a variable pressure in response to a PWM (Pulse Width Modulated) current signal.
With no current applied to the proportional solenoid, the inlet port 2 (P) is blocked and the regulated port 3 (C) is
vented to port 1 (T). As current is increased, uid pressure is proportionally controlled at the regulated port 3 (C).
On attainment of proportionally determined pressure at 3 (C), the cartridge shifts to block ow at 2 (P), thereby
regulating pressure at 3 (C). In this mode, the valve also will relieve 3 (C) to 1 (T) at a variable value over the set
reducing pressure.
FEATURES
• Slip-in style.
• Efcient wet-armature construction.
• Integral waterproof coil.
• Continuous duty rated solenoid.
Flanged retained product. The coil is an integral
part of the valve and is not serviceable. Eventual
tank pressure exceeding 0 bar, has to be added to
reduced pressure value.
Nominal Flow 1 GPM (4 LPM) @ 8 bar Delta P
Max Inlet Pressure “L” version 700 PSI (50 bar)
Controlled Pressure Range 0÷25 bar / 0÷30 bar / 0÷35 bar
(see graph)
Reduced Pressure Tolerance ±5%
Max Back-Pressure at T Port 30 bar
Internal Leakage 15 ml/min @ 500 PSI (35 bar) inlet
Viscosity Range 36 to 3000 SSU (3 to 647 cSt)
Filtration ISO 18/15/13
Media Operating Temp. Range -30°C / +100°C
Weight .43 lbs (.20 kg)
Operating Fluid Media General Purpose Hydraulic Fluid
Cavity T250
Cavity Tool Kit K-T250
Flange Mounting Screws and Torque M4x10 / 3ft-lbs (4 Nm)
VALVE SPECIFICATIONS
Current Supply Characteristics PWM (Pulse Width Modulation)
Rated Current Range 200÷1500 (12 V coil)
100÷750 (24 V coil)
PWM or Super-Imposed Dither Freq. 100-200 Hz
Coil Resistance (12 VDC) 4.8 Ohm ±5% at 68°F (20°C)
(24 VDC) 20 Ohm ±5% at 68°F (20°C)
Max Power Consumption 11 Watt (20°C)
Coil Termination Deutsch-Integral DT04-2P (DT)
AMP Jr. Timer 84-9419 (AJ)
Color Connectors Black
Protection Degree
(according to IEC 529) IP 69K (DT)
IP 67 (AJ)
COIL SPECIFICATIONS
HYDRAULIC SYMBOL
PERFORMANCE

































B
A











1000
600 800
1200
30
20
10
2000
400
40
1400 1600
3
0
b
a
r
2
5
b
a
r
3
5
b
a
r
500
300 400
600
100 200
700 800
TECNORD
SERVOCOMANDI E REGOLAZIONE



  








 


  





  
































Pressure Vs. Current Characteristic
Oil viscosit 46 cSt @ 45°C

































B
A











1000
600 800
1200
30
20
10
2000 400
40
1400 1600
3
0
b
a
r
2
5
b
a
r
3
5
b
a
r
500
300 400
600
100 200
700 800
TECNORD
SERVOCOMANDI E REGOLAZIONE



  








 


  





  
































(C)
(Bar)
l(mA)
l(mA)
Page PD5
PROPORTIONAL CONTROLS
Via Malavolti, 36 • 41122 Modena • ITALY • Phone +39 (059) 254895 • Fax +39 (059) 253512
mail: tecnord@tecnord.com • www.tecnord.com
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 5 / 2018
IP-DAR-250 – – – –
COIL
TERMINATION
VOLTAGE INLET
PRESSURE
MAX
REGULATED
PRESSURE
OPTIONS BODIES
AJ - AMP Jr. Timer 12 VDC L - up to 700 PSI
(50 bar)
20 bar A0 - NBR seals
and 300 μm
(50 mesh) screen
on port 2
Blank - Without
body
DT - Deutsch
DT04
24 VDC 25 bar N - 1/4” BSP Ports
32 bar
DIMENSIONS
ORDERING INFORMATION
DT version AJ version

































B
A











1000
600 800
1200
30
20
10
2000 400
40
1400 1600
3
0
b
a
r
2
5
b
a
r
3
5
b
a
r
500
300 400
600
100 200
700 800
TECNORD
SERVOCOMANDI E REGOLAZIONE



  








 


  





  











 

  



















































B
A











1000
600 800
1200
30
20
10
2000 400
40
1400 1600
3
0
b
a
r
2
5
b
a
r
3
5
b
a
r
500
300 400
600
100 200
700 800
TECNORD
SERVOCOMANDI E REGOLAZIONE



  








 


  





  































