Electro-Proportional Valves — Pressure Control

TS10-26 — Proportional Pressure Control, Pilot-Operated Relief
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TS10-26 Valve
U.S. Patent 7,137,406

TS10-26 Valve symbol

A screw-in, cartridge-style, pilot-operated, spool-type hydraulic relief valve, which
can be infinitely adjusted across a prescribed range using a variable electric input.
The regulated pressure is proportional to the input electrical current This valve is intended for use
as a pressure limiting device in demanding applications.

The TS10-26 blocks flow from 1 to 2 until sufficient pressure is present at 1 to open
the pilot section by offsetting the electrically induced solenoid force. With no current
applied to the solenoid, the valve will relieve at approximately 6.9 bar (100 psi).
The optional manual override allows the valve to be set when the electric supply is lost.
The manual setting is added to the electric setting. To prevent the system from being
over pressurized, the manual override should always be disengaged prior to applying
power to the coil.

• Optional manual override.
• Several adjustable pressure settings.
• Optional waterproof E-Coils rated up to IP69K.
• 12 and 24 volt coils standard.
• Industry common cavity.

Max. Operating Pressure: 241 bar (3500 psi) at Port 1; 207 bar (3000 psi) at Port 2
Proof Pressure: 344.7 bar (4000 psi)
Burst Pressure: 827.4 bar (12 000 psi) with coil assembled
Max. Control Current: 1.10 amps for 12 VDC coil; 0.55 amps for 24 VDC coil
Operational Relief Pressure Range: from zero to max. control current:
   Range A: 6.9 to 207 bar (100 to 3000 psi); Range B: 6.9 to 159 bar (100 to 2300 psi);
   Range C: 6.9 to 117 bar (100 to 1700 psi)
Rated Flow: 94.6 lpm (25 gpm) ΔP=9.6 bar (190 psi), cartridge only, 1 to 2 coil de-energized
Electrical Parameters:
D 12 7.25 ± 5% 141 1.10
24 28.35 ± 5% 626 0.55
E 12 7.3 ± 5% 139 1.20
24 29.4 ± 5% 600 0.60
Dither Frequency: 200 Hz
PWM Frequency: 200 Hz
Hysteresis: less than 3%
Max. Pilot Flow: 0.76 lpm (0.2 gpm)
Flow Path: Free Flow: 1 to 2 coil de-energized; Relieving: 1 to 2 coil energized
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals;
   -54° to 107°C (-65° to 225°F) with polyurethane 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 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: VC10-2; See page 9.110.1_2w
Cavity Tool: CT10-2xx; See page 8.600.1
Seal Kit: SK10-2N-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




TS10-26 Valve Performance Chart


TS10-26 Valve Performance


INITIAL SETUP: Before operating valve, use the manual override to manually set pressure to 13.8 to 20.7 bar (200 to 300 psi). Before operating electrically, back out manual override (CCW using 3/16" hex wrench) until positive stop is reached. Manual override must be fully backed out when operating electrically.



TS10-26 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: 0.16 kg
(0.35 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_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.



TS10-26 Ordering Chart