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. Pressure output is proportional to DC current input. This valve is intended for use as a pressure limiting device in demanding applications.
The TS12-26 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.
• 12 and 24 volt coils standard.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
• Optional manual override.
Max. Operating Pressure: 241 bar (3500 psi)
Max. Control Current: 1.1 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 138 bar (100 to 2000 psi)
Range C: 2.1 to 69 bar (30 to 1000 psi)
Rated Flow: 189 lpm (50 gpm)
Hysteresis: less than 3%
Max. Pilot Flow: Range A: 1.9 lpm (0.5 gpm); Range B: 1.3 lpm (0.35 gpm);
Range C: 0.9 lpm (0.25 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
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: VC12-2; See page 9.112.1_2w
Cavity Tool: CT12-2xx; See page 8.600.1
Seal Kit: SK12-2x-B; See page 8.650.1
Coil Nut: Part No. 4540560
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or EVDR-Type Controller Selection Guide,
or for other Electronic Controllers, see page 2.001.1_pdf