DF250 DF350 Control Valve Hydraulic OVERVIEW

Features and Benefits

• High-strength cast monoblock structure, strong compression resistance, long service life

• Hardened valve spool, small clearance, effectively reduces oil leakage

• Built-in main relief valve and check valve, overload protection for the whole system

• Smooth operation with low operating force, spring return or ball positioning optional

• Available with 1 to 5 spools, supports series-parallel oil circuit

• Surface anti-corrosion treatment, suitable for harsh outdoor working condition

Specifications DF250 DF350 Control Valve Hydraulic

Applications

Packaging & Delivery

DF250 DF350 Control Valve Hydraulic are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

DF250 DF350 Control Valve Hydraulic FAQ:

1. What is the DF250 DF350 Control Valve Hydraulic ?

• Heavy-duty one-piece cast iron body, resistant to high pressure and deformation.

• Large flow capacity up to 250L/min and 350L/min with low internal leakage.

• Hardened precision spools ensure smooth operation and long service life.

• Built-in main relief and check valves to protect the whole hydraulic system.

• Flexible 1–5 spool combinations, supporting series-parallel oil circuits.

• Works reliably on big tractors, harvesters and heavy agricultural machinery.
  
  

3. What is the working pressure range of DF250 DF350 Control Valve Hydraulic ?

 

• Continuous working pressure:315 bar ≈ 4569 PSI
• Maximum peak pressure:350 bar ≈ 5076 PSI

4. Can DF250 DF350 Control Valve Hydraulic replace other brands?

• We recommend using anti-wear hydraulic oil AW32 or AW46.
• AW32 is suitable for normal temperature environments.

• AW46 works better under high temperature and heavy load conditions.

• Keep the oil cleanliness strictly controlled, and replace the hydraulic oil regularly to extend the service life of the valve.

6. What is the typical speed range of DF250 DF350 Control Valve Hydraulic ?


     

• Recommended oil flow speed inside the valve:Normal operating flow for DF250: ≤250 L/minNormal operating flow for DF350: ≤350 L/min
• Operating temperature: -20℃ to +80℃

7. Do you provide OEM or customized services?

8. How can I get a quotation quickly

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

  
  

Certifications & Quality Assurance

DF250 DF350 Control Valve Hydraulic  are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.