TS90-31 Proportional Electric Reducing/Relieving
2.884.1
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type reducing/relieving valve, which
can be infi nitely adjusted across a prescribed range using a variable electric input.
Pressure output is proportional to DC current input. This valve is intended for use as
a pressure control device in demanding applications.
OPERATION
Without applied current, the TS90-31 allows fl ow from ➂ to ➃ while blocking ➁.
When the coil is energized,
➂ is connected to ➁, and pressure at ➂ is controlled
proportional to the amount of current applied to the coil. If pressure at
➂ exceeds
the setting induced by the coil, pressure is relieved to
➃.
Back pressure on port
➃ becomes additive to the pressure setting at a 1:1 ratio.
Note: This product may be customized for special OEM performance characteristics.
Consult factory.
FEATURES
• 12 and 24 volt coils standard.
• Optional waterproofed E-Coils rated up to IP69K.
RATINGS
Maximum Operating Pressure at Ports 1 and 2: 207 bar (3000 psi)
Maximum Tank Pressure at Port 4: 69 bar (1000 psi)
Regulated Pressure Range from Zero to Max. Control Current:
0 to 137.9 bar (2000 psi)
Maximum Control Current: E-Coils: 0.88 amps for 12 VDC coil; 0.44 amps for 24
VDC coil; D-Coils: 0.68 amps for 12 VDC coil; 0.34 amps for 24 VDC coil
Deadband: 0.150 amps @ 12 VDC; 0.075 amps @ 24 VDC
Hysteresis: 3.0% PWM
Rated Flow: 38 lpm (10 gpm)
Maximum Pilot Flow: 0.85 lpm (0.23 gpm) with No Current
Flow Path: Free Flow:
➂ to ➃ coil de-energized; Reduced: ➁ to ➂ coil energized;
Relieving:
➂ to ➃ coil energized; Port ➀ is not plumbed externally
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
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 Recommendation: When possible, the valve should be mounted below
the reservoir oil level. This will maintain oil in the armature preventing trapped air
instability. If this is not feasible, mount the valve horizontally for best results.
Cavity: VC98-3; See page 9.110.1; Cavity Tool: CT98-3XX; See page 8.600.1
Seal Kit: SK90-3X-BM; See page 8.650.1
Coil Nut: Part No. 4540560
USASI/ISO:
SYMBOLS
PERFORMANCE
ELECTRO-PROPORTIONAL VALVES—PRESSURE CONTROLS
HYDRAFORCE
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3
2
1
4
FLOW lpm/gpm
Typical Pressure Drop vs. Flow
PRESSURE bar/psi
0
1.7/25
3.4/50
5.2/75
6.9/100
8.6/125
10.3/150
12.1/175
38
10
38
10
30
8
30
8
23
6
23
6
15
4
15
4
7.6
2
7.6
2
0
Relieving Pressure
Port 3 to 4
Coil Current: 0A
Cartridge, Body & Line ——; Body & Line – - – -
Reducing Pressure
Port 2 to 3
Coil Current: 0.5A
PRESSURE bar/psi
0
34.5/500
68.9/1000
103.4/1500
137.9/2000
172.4/2500
Control Current (amps) with 100 Hz Dither
Current amps
0.20.1 0.60.4 0.70.3 0.5 0.8
Inlet Pressure 172 bar (2500 psi) at No Flow
Reducing Pressure vs. Current
Typical Reducing/Relieving Pressure vs. Flow
For a Regulated Pressure with 172.4 bar (2500 psi) Inlet Pressure
for Various Percentages of Nominal Control Currents
PRESSURE bar/psi
68.9/1000
0
34.5/500
103.4/1500
137.9/2000
172.4/2500
FLOW lpm/gpm
30.3
8
30.3
8
37.9
10
37.9
10
22.7
6
22.7
6
15.1
4
15.1
4
7.6
2
7.6
2
0
Relieving Pressure:
(Differential – Body & Cartridge)
Reducing Pressure:
100% Control Current
75% Control Current
50% Control Current
25% Control Current
Blue rectangles are links to other catalog pages.
TS90-31
2.884.2
Valve, Internally Piloted
DIMENSIONS
MATERIALS
Cartridge: Weight: 0.25 kg. (0.55 lbs.); Steel
with hardened work surfaces. Zinc-plated
exposed surfaces. O-rings standard.
Standard Ported Body: Weight: 0.34 kg.
(0.75 lbs.) Anodized high-strength
6061 T6 aluminum alloy, rated to 207 bar
(3000 psi). Ductile iron bodies available;
dimensions may differ. See page 8.010.1.
Standard Coil: Weight: 0.32 kg. (0.70 lbs.)
Unitized thermoplastic encapsulated,
Class H high temperature magnet-wire.
See page 3.200.1
E-Coil: Weight: 0.41 kg. (0.9 lbs.) Perfect
wound, 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.
TO ORDER
TS90-31 - __ - __ - __ __ __ __
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
Seals
Buna N N
Fluorocarbon V
Coils with internal diode are available. Consult factory.
Note: This valve uses a 10-size coil and the VC98-3 cavity, which is a variation of a 10-size cavity.
PERFORMANCE
(continued)
Voltage
Less Coil 0
12 VDC (0.88 amps max.) 12
24 VDC (0.44 amps max.) 24
Consult factory for other voltages
Termination Std. D-Coil
DS Dual Spades
DG DIN 43650
DL Leadwires (2)
DL/W Leads w/Weatherpak
®
Connectors
DR Deutsch DT04-2P
Termination E-Coil
EG DIN 43650
(IP65 Rated)
EL Leadwires (2) (IP69K Rated)
ER Deutsch DT04-2P (IP69K Rated)
EY Metri-Pack
®
150 (IP69K Rated)
EJ Amp Jr. Timer (IP69K Rated)
®
HYDRAFORCE
HYDRAFORCE
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Recommended Electronic Controllers:
See page 2.001.1 or our Electronics catalog.
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
Typical Frequency Response Curves
GAIN (dB)
-180
-90
-45
0
-135
PHASE (degrees)
12
FREQUENCY (Hz)
Signal 50% ±50% - - - - - -
Signal 75% ±15% ———
Signal 90% ±10% – – – –
345678910 2030405070
TIME seconds
PRESSURE bar/psi
1.38 1.42 1.46 1.50 3.60 3.70 3.80 3.90
0
34.5/500
68.9/1000
103.4/1500
137.9/2000
172.4/2500
Typical Step Response Curve
Reducing Pressure Shown; No Flow
Inlet Pressure: 172.4 bar/ 2500 psi
12 VDC E-Series Coil
1.25
31.8
1.25
31.8
2.50
63.5
1.36
34.5
2.84
72.1
3.25
82.6
2.00
50.8
0.28
7.1
1.99
50.5
4
2
0.74
18.8
0.25
6.4
INCH
MILLIMETRE
3
2.35
59.6
1.73
44.0
2.95
74.9
2.62
66.5
3
2
1
4
430μ
Screen
1.62
41.1
1.84
DIA.
46.7
TORQUE
8.6 to
9.4 ft-lbs
(11.6 to
12.8 Nm)
TORQUE
25 to
27 ft-lbs
(34 to
36.7 Nm)
Standard
Coil View
E-Coil
View
Blue rectangles are links to other catalog pages.
