
ATOS servo valves, ATOS servo proportional valves, DLHZO
LEHIY item code: LH-ATOS-0002
Quick buying check
This page helps you check ATOS servo valves, ATOS servo proportional valves, DLHZO before you ask for a quote.
Confirm the brand, model number, part number, and quantity. Share a clear nameplate photo when the old item has close variants.
LEHIY can check stock, lead time, packing, shipping documents, and safe replacement options for maintenance orders.
ATOS servo valves and ATOS servo proportional valves (DLHZO) are readily available in Shanghai. The main valve of an Italian ATOS servo valve is generally a spool valve, similar to a directional valve.
However, the valve core is not driven by an electromagnet, but by the hydraulic pressure output from the pre-stage valve.
This is similar to electro-hydraulic directional valves, except that the pre-stage valve of an ATOS electro-hydraulic directional valve is an electromagnetic valve, while the pre-stage valve of an ATOS servo valve is a nozzle-flapper valve or jet valve with better dynamic characteristics.
It belongs to the same product category as the German and REXROTH servo valves (4WRPEH6).
Two ATOS proportional servo valves (DLHZO-LE-040-L03/DL27SB40) are in stock. The ATOS electro-hydraulic proportional valve consists of: an ATOS amplifier (E-R1-LE-01H41/DL27SB), an ATOS primary valve (DLHZO-LE-040-L03/DL27SB40), and an ATOS secondary valve (DPZO-LE-271-S5-41).
Two ATOS proportional servo valves are urgently available for clearance sale!
Order now if you want one! Futures orders will take approximately 16 weeks to complete once the stock is sold out! ATOS proportional servo valves offer performance between servo valves and proportional valves. We have a large stock of ATOS servo proportional valves (DLHZ) from Italy, at competitive prices.
These are genuine Italian products with original factory quality.
We offer technical support, after-sales installation guidance, and repair services. The difference and principle between Italian ATOS proportional valves and servo valves: ATOS proportional valves are divided into proportional pressure valves, proportional flow valves, and proportional directional valves.
ATOS electro-hydraulic proportional servo valves, also called electro-hydraulic servo proportional valves, originate from the combination of proportional and servo technologies.
One type uses a proportional electromagnet as an electro-motor converter, improving the traditional power spool valve of the electro-hydraulic proportional valve into a servo valve core and sleeve structure.
Another type removes the spool valve sleeve structure of the ATOS electro-hydraulic servo valve, replacing mechanical feedback with electrical feedback.
Hydraulic servo valves mainly refer to ATOS electro-hydraulic servo valves, which, after receiving electrical analog signals, output modulated flow and pressure accordingly. It functions as both an electro-hydraulic conversion element and a power amplifier, converting weak electrical input signals into high-power hydraulic energy (flow and pressure) output.
Both ATOS servo valves and ATOS proportional valves infinitely adjust the output of the hydraulic valve, such as pressure, flow, and direction, by regulating the analog input electrical signal. (Servo valves also have pulse width modulation input methods). However, the structures of these two types of valves are fundamentally different.
Servo valves rely on regulating the electrical signal to control the torque motor, causing the armature to deflect, which in turn actuates the pilot valve. The control oil from the pilot valve enters the main valve, pushing the valve core.
Proportional electrical valves, on the other hand, regulate the signal to displace the armature, which in turn actuates the pilot valve core.
The resulting control oil then pushes the main valve core. core, which can also have valve core displacement feedback, but not... Servo valves are too delicate and sensitive to hydraulic oil contamination.
Their small main valve core size makes them unsuitable for high-pressure, high-flow systems, but they offer relatively high control and can provide redundancy control.
Proportional valves are simpler; the pilot valve can generate 2 liters/minute of high-pressure oil, and the main valve core can handle flows exceeding 500 liters.
However, their high hydraulic inertia makes them unsuitable for high-frequency operation, and their output flow is not as high. ATOS servo valves and DLHZO servo proportional valves are readily available in Shanghai.
ATOS servo valves are very expensive, costing approximately 7-10 times more than proportional valves with the same pressure and flow rate.
In electro-hydraulic servo systems, they connect the electrical and hydraulic components, enabling electro-hydraulic signal conversion and hydraulic amplification. The electro-hydraulic servo valve is the core of the electro-hydraulic servo system control. ATOS proportional valves are a new type of hydraulic control device.
They replace the original control components in ordinary pressure valves, flow valves, and directional valves with proportional electromagnets, continuously and proportionally controlling the pressure, flow rate, or direction of oil flow remotely according to the input electrical signal.
Proportional valves generally have pressure compensation capabilities, and their output pressure and flow rate are unaffected by load changes. ATOS proportional servo valves from Italy are highly reliable, comparable to high-end servo valves...
They embody proportional technology with precision-sealed valve core and sleeve, enabling closed-loop feedback, safe reset, high response, and factory-preset digital electronic amplifiers. They offer digital control of flow, pressure, and position.
ATOS offers a complete product line of proportional valves, adhering to a modular design concept for flexible combinations.
Matched with appropriate electronic amplifiers and shaft controllers, they achieve control of flow, pressure, and direction.
DLHZO-TE-040-L53/I, DLHZO-TE-040-L53/I 40, DLHZO-T-040-L31 31, DLHZO-T-040-L51, DLHZO-T-040-L53, DLHZO-T-040-L71, DLHZO-T-040-L71 31, DLHZO-TE-040-L13 40, DLHZO-TE-040-L31 40, DLHZO-TE-040-L31/FI 40,.
DLHZO-TE-040-L31/I, DLHZO-TE-040-L71, DLHZO-TE-040-L33/I 40, DLHZO-LE-040-L03/DL27SB40, DLHZO-LE-040-L13/B/DL37SB 40.
Plain language sourcing guide for ATOS servo valves, ATOS servo proportional valves, DLHZO
Start with the full model name. Check the brand name. Check the part number. Check the code on the old unit. These small checks help you avoid a wrong order.
Take one clear photo of the front label. Take one photo of the side label. If the part has a cable, plug, port, seal, coil, or screen, take a photo of that area too.
Tell us the quantity you need. Tell us your country. Tell us the date when the plant needs the part. We can then check stock, lead time, safe packing, and the best shipping plan.
If the exact model is no longer made, do not guess. Send the old model and the use case. LEHIY can compare close options and explain which choice is safer for repair work.
Use simple order notes. Write the model in one line. Write the quantity in one line. Write the delivery country in one line. This helps our team reply faster.
Check the old part before removal. Look at the label. Look at the connector. Look at the mounting size. Look at the voltage or pressure rating if it is shown.
Do not rely on a short nickname for a part. Many industrial items have close versions. A small suffix can change the plug, output, range, or software setting.
Ask for a stock check if the plant is stopped. Ask for a lead time if the order is planned. Ask for packing photos if the part is fragile or heavy.
For a replacement order, tell us what failed. Tell us where the part is used. Tell us if an equal model is acceptable. This makes the first answer more useful.
For repeat orders, send the last invoice, old label, or old packing photo. The same reference can help us match the correct product again.
For urgent service, keep the message simple. One model, one quantity, one photo, and one delivery target are enough for a fast first check.
| Brand Name: | ATOS | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
What are your strengths?
Ans. LEHIY specializes in industrial automation and control components, offering fast sourcing, stable quality, and competitive prices for global customers.
What is your estimated delivery time?
Ans. Most items ship within 3-7 days. Customized or rare models may take 10-30 working days.
What are your primary product offerings?
Ans. Our main products include PLCs, sensors, valves, solenoid valves, actuators, power modules, transmitters, and complete industrial automation solutions.
How can I get in touch with you?
Ans. You can reach us anytime via Email, WhatsApp, LinkedIn, or our contact page. Our sales engineers respond quickly and provide technical support when needed.
What are your payment terms?
Ans. Standard terms are 50% TT in advance and 50% balance before delivery. We also support Alibaba Trade Assurance and L/C for qualified orders.
Feel free to Ask questions
ATOS servo valves, ATOS servo proportional valves, DLHZO
Send the brand, model, part number, quantity, nameplate photos, and application requirements. LEHIY will check availability, suitable alternatives, packing details, and delivery options before quoting.
For discontinued, temporarily unavailable, or configuration-sensitive items, our team can compare the requested model with close variants or compatible replacements for maintenance and spare parts planning.
Use this page as a practical sourcing note for engineers, buyers, and maintenance teams comparing automation components. Check the model name, brand, LEHIY code, application, and replacement requirements before sending an inquiry.
Short, clear information helps our team confirm availability faster and reduce back-and-forth communication during urgent maintenance projects.
- Confirm the complete model number and any suffix printed on the nameplate.
- Share quantity, destination country, preferred shipping method, and target delivery date.
- Include photos, drawings, old purchase records, or datasheets when compatible alternatives are acceptable.
- Ask for stock checking, replacement comparison, packing details, and export documentation before ordering.
Useful details for a faster quote
- Complete model and part number
- Required quantity and target delivery date
- Nameplate photos, drawings, or old purchase records
- Voltage, signal range, dimensions, or accessory needs
Model matching
We review brand, model, part number, nameplate photos, installation environment, and replacement requirements.
Quality and delivery
Each order can be checked for authenticity, condition, packing, warranty, shipping method, and delivery schedule.
Stock alternatives
For urgent maintenance projects, we can help check stock, compatible alternatives, and fast international shipment.
ATOS servo valves, ATOS servo proportional valves, DLHZO verification notes
Please send the full model number, quantity, target delivery date, and nameplate photos. These details help us check the requested product or a close replacement.
LEHIY reviews product name, part number, series, label information, and application requirements before shipment.
If the original model is discontinued or supplied with different accessories, we can explain practical differences before quoting.
For repeat purchasing, we can help organize related models, replacement parts, shipment schedules, and clear communication for your team.
Explore More
More In This Category
Trusted partners
We have collaborated with many well-known enterprises, contributing to their success and establishing a strong reputation as a trusted partner in the industry.












