Electro-Proportional Valves — Pressure Control

TS98-30 — Proportional, Pilot-Operated Reducing/Relieving
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TS98-30 Valve

TS98-30 Valve symbol
A screw-in, cartridge-style, pilot-operated, spool-type hydraulic pressure
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 limiting device in
demanding applications.

Without applied current, the TS98-30 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
proportional 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: Consult factory for special OEM variations of this product.

• Protective 430 micron screen is standard.
• Bi-directional operation.
• 12 and 24 volt coils standard.
• Optional waterproof E-Coils rated up to IP69K.

Maximum Operating Pressure (at Ports 1 and 2): 138 bar (2000 psi)
Regulated Pressure Range from Zero to Maximum Control Current:
   Maximum Pilot Flow:
0.85 lpm (0.23 gpm) with 0 current at 54 °C (130 °F)
Electrical Parameters:

Typical Max. Current
(amp) 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 0.68 amp 0.34 amp 9.89 8.53 89 mH 178 mH
E-Coil 0.88 amp 0.44 amp 8.53 33.8 105 mH 437 mH
Flow Path: Free Flow: 3 to 4 coil de-energized; Reduced: 2 to 3 coil energized;
   Relieving: 3 to 4 coil energized
Temperature: -29° to 204°C (-20° to 400°F) with standard 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: When possible, the valve shoul d 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: VC98-3; See page 9.110.1_3w
Cavity Tool: CT98-3xx; See page 8.600.1
Seal Kit: SK90-3V-00; See page 8.650.1
Coil Nut: 7004410

The EVDR Series controllers are recommended for use with most HydraForce
proportional valves. These newer electronic controllers are versatile, reliable,
and easily configured and customized for a wide range of applications.
See the EVDR Product Selection Guide.
For other Electronic Controllers, see page 2.001.1_pdf




TS98-30 Valve Performance Chart


TS98-30 Valve Performance Chart


TS98-30 Performance curves



TS98-30 Valve Dimensions



Cartridge: Weight: 0.25 kg (0.55 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; O-rings

Standard Ported Body: Weight: 0.34 kg
(0.75 lb); 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_3w.

D-Coil: Weight each: 0.11 kg (0.25 lb);
Unitized thermoplastic encapsulated,
Class H high temperature magnetwire.
See page 3.200.1_08-size.

E-Coil: Weight: 0.14 kg (0.3 lb); Perfect
wound, fully encapsulated with rugged
external metal shell; Rated up to IP69K
with integral connectors.
See page 3.400.1_08-size.



TS98-30 Ordering Chart