Atos DHZO-TEB Proportional Directional Valve, LVDT

A direct proportional valve for fast closed-loop motion

The Atos DHZO-TEB is a digital, direct-operated proportional directional valve made for high-speed closed-loop control. A built-in LVDT position transducer reads the spool, and positive spool overlap gives good dynamics in directional control and in uncompensated flow regulation. The datasheet covers two sizes: DHZO (size 06, up to 80 l/min) and DKZOR (size 10, up to 180 l/min), each as a 4/2 or 4/3 way valve.

TEB is the basic execution, with an analog reference or IO-Link for digital reference, settings and diagnostics. TES is the full execution, adding fieldbus and optional alternated pressure/flow (p/Q) control. A Bluetooth and USB service port is always present.

Technical specifications

Which spool and flow to pick

Nominal flows are given at a 10, 30 and 70 bar drop from P to T, so pick the spool from the flow needed at the pressure drop your circuit can spare. Spools L1 to L5, S and D types differ in flow and in how the A and B paths relate; for D-type spools the P-B flow is 50 percent of the P-A flow. The model code DHZO-TES-SN-NP-071-L5 reads as valve type, driver, alternated control, fieldbus, size, configuration and spool.

Smart Tuning offers dynamic, balanced and smooth settings, so response and sensitivity can be matched to the axis. The free Atos CONNECT app and E-SW-SETUP software handle commissioning and show an internal oscilloscope.

What to confirm before ordering

Name the size, driver (TEB or TES), fieldbus, spool and configuration, the p/Q and safety options if used, and the seal material. Wire and commission to the Atos installation tables. For a larger piloted valve in the same family see the Atos DPZO-LEB, and for pilot-operated alternatives from another maker see the Bosch Rexroth 4WEH. All are under hydraulic valves and components.

How the Atos DHZO-TEB works

The on-board driver reads the reference signal and compares it with the spool position from the LVDT. It drives the solenoid until the spool is where the reference says. This closed loop gives a fast response and low hysteresis. The valve is set up through the service port or through IO-Link.

Where the DHZO-TEB is used

• Injection moulding machines
• Presses
• Closed-loop position control of cylinders
• Fast directional control
• Uncompensated flow regulation

Selection checklist for the DHZO-TEB

• Size 06 (DHZO) or size 10 (DKZOR)
• 4/2 or 4/3 way
• Spool type and nominal flow
• Pressure limits of the circuit
• Analog or IO-Link reference
• 24 V DC supply
• Connectors and cables
• Basic TEB or full TES execution

Installation, commissioning and maintenance notes for the DHZO-TEB

Mount the valve on a flat ISO 4401 subplate with clean seals. Tighten the screws evenly. Wire the 24 V supply, the enable and the reference. Bleed the system and set the valve with the service software. Keep the oil clean.

Requesting a quotation for the Atos DHZO-TEB

Please send the size, the spool, the pressure and the flow. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

DHZO-TEB sizes

DHZO is size 06 for up to 80 l/min and DKZOR is size 10 for up to 180 l/min.

DHZO-TEB pressure limits

The ports P, A and B take 350 bar on the DHZO and 315 bar on the DKZOR.

DHZO-TEB response time

The step response is up to 15 ms on the DHZO and 20 ms on the DKZOR.

DHZO-TEB hysteresis

Hysteresis is up to 0.2 percent and repeatability plus or minus 0.1 percent.

DHZO-TEB power supply

The supply is 24 V DC with a maximum power of 50 W.

DHZO-TEB reference signals

The reference is plus or minus 10 V DC or plus or minus 20 mA.

DHZO-TEB digital interface

The TEB version uses IO-Link for reference, settings and diagnostics.

DHZO-TEB service port

A Bluetooth and USB service port is always present.

DHZO-TEB protection

The valve is rated IP66 or IP67 with the mating connectors fitted.

Valve records for the DHZO-TEB

Record the spool code, the driver settings and the date of each service.

Choosing the right DHZO-TEB execution

Choose TEB for a basic loop with an analog or IO-Link reference, and TES where a fieldbus is needed.

Documents and quotation

The attached Atos technical table FS165 (revision 9.0, April 2026) contains the model code, spool flow tables, response and Bode diagrams, fieldbus data and dimensions. Send the full code, interface and quantity for a quotation.