Packaging & Delivery
YJ4WE Directional Valve 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.
YJ4WE Directional Valve FAQ:
1. What is the YJ4WE Directional Valve ?
YJ4WE directional valve is a solenoid‑actuated spool‑type hydraulic directional control valve. It changes hydraulic oil flow direction to realize start‑stop and direction switching of hydraulic cylinders and motors. Various spool functions and coil voltages are optional. It is extensively used in mobile machinery and industrial hydraulic power units.
2. What makes the YJ4WE Directional Valve ?
It adopts mature spool‑type structure with abundant optional spool functions to match different circuit demands. Smooth solenoid switching brings low operating noise and stable performance. Multiple coil voltage selections and standard subplate mounting enable easy installation and replacement. Good compatibility allows it to substitute most mainstream 4WE series solenoid directional valves for industrial and mobile hydraulics.
3. What is the working pressure range of YJ4WE Directional Valve ?
Its maximum nominal working pressure reaches 31.5 MPa. It can maintain stable and reliable performance under rated pressure conditions for general industrial and mobile hydraulic systems.
4. Can YJ4WE Directional Valve replace other brands?
Yes, YJ4WE directional valve can replace most mainstream 4WE‑series solenoid directional valves. Compatibility relies on subplate mounting dimensions, nominal pressure, flow rate, spool function and coil voltage. Please verify these key parameters before replacement. Custom solutions are offered if dimension or electrical differences exist.
5. What is the Response / Switching frequency of YJ4WE Directional Valve ?
Its energized response time ranges from 0.025‑0.045 s, de‑energized reset time ranges from 0.010‑0.025 s for DC coils. Under standard working conditions, the rated switching frequency can reach up to 250 cycles per minute. Actual performance will be influenced by oil viscosity, system pressure and selected coil type (AC or DC).
6. Do you provide OEM or customized services?
Yes, OEM and customized services are supported for YJ4WE Directional Valve. We can customize spool functions, coil voltage, sealing materials and marking according to customer’s requirements. Please provide detailed specifications or drawings for accurate quotation.
7. How can I get a quotation quickly
Please provide the following details:
Certifications & Quality Assurance
YJ4WE Directional Valve 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.
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. 
