Electro-Proportional Valves — Pressure Control

TS58-20 — Proportional Pressure Relief, High Pressure
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TS58-20 Valve

TS58-20 Valve symbol
A screw-in, cartridge-style, direct acting, poppet-type hydraulic relief 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 limiting device in demanding applications up to 345 bar (5000 psi).

The TS58-20 blocks flow from 1 to 2 until sufficient pressure is present at 1 to
offset the electrically induced solenoid force. With no current applied to the
solenoid, the valve will free flow from 1 to 2.
Note: Back pressure on port 2 becomes additive to the pressure setting at a 1:1 ratio.

• 12 and 24 volt coils standard.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.

Max. Operating Pressure: 428 bar (6200 psi) at port 1; 69 bar (1000 psi) at port 2
Proof Pressure: 448 bar (6500 psi) at port 1; 103 bar (500 psi) at port 2
Burst Pressure: 945 bar (13700 psi)
Flow Rating: 6.8 lpm (1.8 gpm) ΔP 5.5 to 8.3 bar (80 to 120 psi) Cartridge only;
   port 1 to port 2 with coil energized.
Adjustable Pressure Range from Zero to Maximum Control Current: 0 to 345 bar (0 to 5000 psi).
   Maximum pressure factory adjustable between 275.8 bar (4000 psi) and 345 bar (5000 psi) in
   6.9 bar (100 psi) increments.
Electrical Parameters:
COIL Typical Max. Current
(A) at 0 gpm
Typical Resistance ±5%
at 20°C (ohms)
Typical Apparent
Inductance (mH)
12 VDC 24 VDC 12 VDC 24 VDC 12 VDC 24 VDC
D-Coil 1.30 0.66 7.2 ±3% 28.8 ±5% 141 mH 626 mH
E-Coil 1.32 0.66 7.1 ±5% 28.5 ±5% 139 mH 600 mH
Dither Frequency: 200 Hz
PWM Frequency: 200 Hz
Response Time: While current step from 0 to maximum - 0.045 sec. While current step
   from maximum to 0 - 0.008 sec.
Hysteresis: 3.5% maximum at 200 Hz dither or PWM.
Leakage: 0.275 cu. in./min (4.5 ml/min.) at 80% of maximum setting
Temperature: with standard polyurethane seals: -54 to 107° C (-65 to 225° F).
   Other seal options available; consult factory
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: 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; See page 9.020.1
Cavity: VC08-2; See page 9.108.1_2w
Cavity Tool: CT08-2xx; See page 8.600.1
Seal Kit: SK08-2x-B; See page 8.650.1
Coil Nut: Part No. 4540560

See model EFDR2 Multi-Input Fan Drive Controller, or EVDR-Type Controller Selection Guide,
or for other Electronic Controllers, see page 2.001.1_pdf




TS58-20 Valve Performance Chart


TS58-20 Performance

TS58-20 Valve Dimensions



Cartridge: Weight: 0.25 kg (0.55 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups

Standard Ported Body: Weight: 0.54 kg
(1.2 lb); Ductile Iron standard, rated to
345 bar (5000 psi); Aluminum bodies
available; dimensions may differ.
See page 8.008.1_2w.

Standard D-Coil: Weight each: 0.32 kg
(0.7 lb); Unitized thermoplastic encapsulated,
Class H high temperature magnetwire.
See page 3.200.1_10-size.

E-Coil: Weight: 0.41 kg (0.9 lb); Perfect
wound, fully encapsulated with rugged
external metal shell; Rated up to IP69K with
integral connectors.
See page 3.400.1_10-size.



TS58-20 Ordering Chart