Patent Pending
SYMBOL:
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DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type hydraulic 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.
OPERATION
The TS12-36 allows flow from 2 to 1 until pressure at 1 equals the setting determined by the coil current. Port 3 is typically connected to the reservoir. If external load increases the pressure at 1 beyond this setting, pressure is relieved by allowing flow from 1 to 3. Minimum pressure at 1 without any current is 6.9 bar (100 psi).
If external circuitry allows the pressure at 2 to fall below the pressure at 1, the valve will allow free flow from 1 to 2 regardless of the setting of the valve or the amount of current in the coil.
FEATURES
• 12 and 24 volt coils standard.
• Standard waterproof coils or optional waterproof E-Coils.
RATINGS
Max. Operating Pressure: Ports 1 and 2: 276 bar (4000 psi)
Max. Tank Pressure: Port 3: 68.9 bar (1000 psi); tank pressure is additive to regulated pressure
Reduced Pressure Range: from zero to max. control current:
Range A: 6.9 to 207 bar (100 to 3000 psi); Range B: 6.9 to 172 bar (100 to 2500 psi)
;
Range C: 6.9 to 138 bar (100 to 2000 psi)
Max. Pilot Flow and Leakage: 0.49 lpm (0.13 gpm) with max. control current and with inlet pressure at 276 bar (4000 psi) at regulated flow of 3.8 lpm (1 gpm)
Flow Path: Free Flow: 1 to 3 coil de-energized; Reduced: 2 to 1 coil energized;
Relieving: 1 to 3 coil energized
Performance Life: less than 5% change in the slope of the pressure vs current characteristics over one million cycles
Hysteresis: less than 3%
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: VC12-3; See page 9.112.1_3w
Cavity Tool: CT12-3xx; See page 8.600.1
Seal Kit: SK10-3x-BM; See page 8.650.1
Coil Nut: Part No. 4526330
RECOMMENDED ELECTRONIC CONTROLLERS
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
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