Packaging & Delivery
4WMM 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.
4WMM Directional Valve FAQ:
1. What is the 4WMM Directional Valve ?
4WMM directional valve is a hand‑lever actuated spool‑type hydraulic directional control valve. It works without electric power to switch oil flow direction and control start‑stop and movement direction of hydraulic cylinders and motors. It offers spring‑return or detent locking modes and multiple spool options. It is widely used for manual‑operation industrial and mobile hydraulic equipment.
2. What makes the 4WMM Directional Valve ?
It adopts robust spool‑type structure with pure hand‑lever operation, requiring no power supply. Both spring‑return and detent‑locking mechanisms are optional. Multiple spool functions meet diverse circuit requirements. Standard ISO subplate mounting enables easy installation and replacement. Low internal leakage and stable performance make it ideal for emergency and on‑site manual control scenarios.
3. What is the working pressure range of 4WMM Directional Valve ?
Maximum working pressure of P/A/B service ports is 31.5 MPa, and the T return port maximum pressure is 16 MPa. The valve maintains reliable manual‑control performance under rated pressure for industrial and mobile hydraulic systems.
4. Can 4WMM Directional Valve replace other brands?
Yes, 4WMM directional valve can substitute most mainstream 4WMM‑series manual directional valves. It follows ISO 4401 standard mounting dimensions. Compatibility depends on working pressure, flow rate, spool function and operation mode (spring‑return or detent). Please verify these key parameters before replacement. Custom options are available if any differences exist.
5. What is the Response / Switching frequency of 4WMM Directional Valve ?
4WMM is manually‑operated, its switching action depends on manual operation. For spring‑return version, spool reset time is about 0.05‑0.15 s. There is no fixed automatic cycle frequency. Practical switching cycles are determined by operator. Oil viscosity and working pressure will affect spool movement performance.
6. Do you provide OEM or customized services?
Yes, OEM and customized services are supported for 4WMM Directional Valve. We can customize spool functions, sealing materials, operating mechanism and product marking according to customer requirements. Please provide detailed specifications or drawings for precise quotation.
7. How can I get a quotation quickly
Please provide the following details:
Certifications & Quality Assurance
4WMM 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. 
