TS90-31 Proportional Reducing/Relieving Valve, (TS90-31)
A screw-in, cartridge-style, pilot-operated, spool-type reducing/relieving valve, which can be infinitely 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.
Product Operation
Without applied current, the TS90-31 allows flow from 3 to 4 while blocking 2. When the coil is energized, 3 is connected to 2, and pressure at 3 is controlled pro-portional to the amount of current applied to the coil. If pressure at 3 exceeds the setting induced by the coil, pressure is relieved to 4. Back pressure on port 4 becomes additive to the pressure setting at a 1:1 ratio.
Note: This product may be customized for special OEM performance characteristics. Consult factory.
Product Features
• 12 and 24 volt coils standard.
• Optional waterproofed E-Coils rated up to IP69K.
• Valve spool protected by a 50 x 50 mesh screen.
Product Ratings
Maximum Operating Pressure: 207 bar (3000 psi) at ports 1 and 2; 69 bar (1000 psi) at port 3.
Burst Pressure: 345 bar (5000 psi)
Flow Rating: 38 lpm (10 gpm);
Maximum Pilot Flow: 0.85 lpm (0.23 gpm)
Adjustable Pressure Range: 0 to 138 bar (2000 psi)
Electrical Parameters:
Coil
Typical Max. Current
(A) at 0 gpm
Typical Resistance ± 5%
@ 20°C (ohms)
Typical Apparent
Inductance (mH)
12 VDC
24 VDC
12 VDC
24 VDC
12 VDC
24 VDC
D-Coil0.680.347.2 ±5%28.8 ±5%148587
E-Coil0.880.447.1 ±5%28.5 ±5%137580
Recommended Drivers: Dither Frequency 350 Hz; PWM Frequency 200 Hz
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
