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A screw-in, cartridge-style, direct acting, poppet-type hydraulic relief valve, which can be infi nitely 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 TS58-20 blocks flow from ➀ to ➁ until suffi cient pressure is present at ➀ to offset the electrically induced solenoid force. With no current applied to the solenoid, the
valve will free flow from ➀ to ➁Note: Back pressure on port ➁ becomes additive to the pressure setting at a 1:1 ratio.
• 12 and 24 volt coils standard.
• Industry common cavity.
• Optional waterproof E-Coils rated up to IP69K.
Maximum Operating Pressure: 345 bar (5000 psi)
Maximum Tank Port Pressure: 69 bar (1000 psi)
Relief Pressure Range: Model Code 40: 0–276 bar (0–4000 psi);
Model Code 50: 0–345 bar (0–5000 psi)
Note: Minimum pressure setting is dependent on flow through the valve. (See Pressure Drop Curve)
Flow: See Performance Charts
Flow Path: Free Flow: ➀ to ➁ coil de-energized; Relieving: ➀ to ➁ coil energized
Maximum Control Current: 1.10 amps for 12 VDC coil; 0.55 amps for 24 VDC coil
Control Signal: DC or PWM (Signifi cant improvements in valve performance occur with superimposed dither, with either control method.)
Dither Frequency: 150 Hz or higher
Hysteresis with Dither 250 Hz: 3.3% (7% maximum without dither)
Step Response: TON
