English
For hydraulic systems requiring maximum flexibility and high-pressure endurance, the SD Series sectional valves are the ultimate solution. Featuring a modular design, these valves allow users to assemble multiple sections (slices) to control various actuators independently. This series includes models like SD5, SD11, and SD14, widely used in cranes, excavators, and complex sanitation machinery.
The standout feature of the SD Series is its adaptability. You can add or remove work sections based on the specific needs of the vehicle. Furthermore, each section can be equipped with auxiliary valves (such as overload valves or anti-cavitation valves) to protect specific cylinders. FLYBY’s technical team ensures that every custom assembly is flow-tested on our simulated vehicle test benches before shipment.
Designed for high-pressure applications (often exceeding 300 bar), the SD Series is manufactured using premium materials and heat-treated components. This ensures resilience against wear and thermal shock, making them the reliable choice for heavy construction and mining environments.
| Feature | Benefit |
| Sectional Design | Easy to replace single slices; highly customizable circuit logic. |
| Auxiliary Valves | Individual port protection (shock/suction valves). |
| Parallel/Series Circuit | Flexible oil path options for multi-function machines. |
| Control Options | Manual, Pneumatic, Electro-hydraulic available. |
Q: Can I add a section to an existing SD valve bank?
A: Yes, the sectional design allows for future expansion. However, ensure the tie-rods are replaced with longer ones to accommodate the extra section.
Q: What is the maximum pressure for the SD series?
A: Depending on the specific model (e.g., SD11, SD18), they are designed to handle working pressures up to 315 bar (4600 psi).
Q: Do you provide assembly diagrams for custom SD valve banks?
A: Yes, our engineering team provides detailed CAD drawings and hydraulic schematics for all custom-assembled sectional valves.
