Valves - Electro-proportional Controls - Pressure Controls - Proportional Pressure Reducing/Relieving - Pilot operated - Drop-in





The ts90-g34xx is a pilot operated, spool-type, proportional, pressure reducing relieving valve. It is a 3rd generation HydraForce drop-in, flange mounted cartridge type valve for use with mineral based or synthetic (with lubricating properties) hydraulic fluids. The coil is an integral part of the valve and is not serviceable the regulated pressure is proportional to the input electrical current in the pressure ranges shown


  • Economical drop-in style.
  • Optional 233 micron mesh screen.
  • Optional lock-down flange.
  • Choice of several regulated pressure ratings.
  • Several push-on termination options.
  • Integral waterproof coil standard, IP69K, 1000-hour salt spray per ASTM B117.


Pressure Ratings
Pressure rating
34.5 bar (500 psi)
Proof pressure
241 bar (3500 psi) Ports 2 and 3
54 bar (780 psi) Port 4
Burst pressure
310 bar (4500 psi) Ports 2 and 3 pressurized
269 bar (3900 psi) Port 4 pressurized
Control pressure at maximum control current
14 bar (203 psi) TS90-G34A
20 bar (290 psi) TS90-G34B
30 bar (435 psi) TS90-G34C
Flow Ratings
Flow rating
38 lpm (10 gpm)
Maximum internal leakage
0.40 lpm (0.11 gpm) TS90-G34A (de-energized) at: inlet 15 bar (210 psi)
0.55 lpm (0.15 gpm) TS90-G34B (de-energized) at: inlet 21 bar (305 psi)
0.60 lpm (0.16 gpm) TS90-G34C (de-energized) at: inlet 31 bar (450 psi)
Hysteresis per cent
4 %
Other Ratings
Cycle life
10 million cycles
Environmental rating
Corrosion protection
1000 hour salt spray per ASTM b117
Temperature Ratings
Maximum operating fluid temperature
-40 to 149 °C (-40 to 300 °F) With HNBR seals
-26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
Storage temperature
-40 to 70 °C (-40 to 158 °F)
Ambient temperature
-40 to 120 °C (-40 to 248 °F)

Operating Parameters

Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
TBD per ISO 4406


Cartridge weight
0.33 kg (0.72 lb)
Internal wetted surface area
226 cm² (35 in²)

Electrical Parameters

Maximum control current
1.08 A Coil 10 V
0.88 A Coil 12 V
0.74 A Coil 14 V
0.54 A Coil 20 V
0.44 A Coil 24 V
0.37 A Coil 28 V
Dither PWM frequency
150 Hz
Valve inductance
58 mH Coil 10 V
88 mH Coil 12 V
127 mH Coil 14 V
235 mH Coil 20 V
357 mH Coil 24 V
537 mH Coil 28 V


TS90-G34_Perf_Chrt1 TS90-G34_Perf_Chrt2 TS90-G34_Perf_Chrt3





Cartridge including Coil: Weight: 0.33 kg (0.72 lb) Steel with hardened work surfaces. Zinc-Nickel plated exposed surfaces; HNBR O-rings standard. Coil is encapsulated, Class H high-temperature magnet wire, with zinc-nickel plated shell.

Special Ported Body: Weight: 0.64 kg (1.4 lb) Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi). Part No. 71609X0 (sold separately).

Mounting Plate: Part No. 4595096 (sold separately).

Mounting Screws: Part No. 4002609 (sold separately).

Installation Specifications

Installation type
Flange mounted
Orientation restriction
Mounting screw torque
3 to 4 N-m (2.2 to 3 ft-lb)
For retro-fitting into older drop-in cavities and other mounting options, see "g3_mounting_options" technical reference


Mounting plate
Hf p/n 4595096
Mounting screw
M5-0,8 x 12 mm long, hf p/n:4002609 (sold separately)
Valve body
Hf p/n 71609x0 (sold separately)
Seal kit
SK-G025-X X=seal option

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