SD25 – Robust, versatile and flexible sectional valve
The Walvoil SD25 (often integrated with the Hydrocontrol D25 series) is a high-capacity, modular sectional valve designed for heavy-duty mobile and industrial hydraulic systems. It acts as the “brain” of a machine’s hydraulic circuit, directing high-pressure fluid to various actuators like cylinders or motors with extreme precision.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The Walvoil SD25 is a high-performance sectional valve specifically engineered for heavy-duty applications that require high flow rates and precise control. While Walvoil produces various “SD” series valves, the SD25 (often categorized under the Hydrocontrol D25 brand within Walvoil) is distinguished by its ability to handle up to 250 litres/minute (67 US gpm)
| Feature | Details & Specifications |
|---|---|
| Max Flow Rate | Up to 250 l/min (67 US gpm) |
| Max Pressure | Up to 350 bar (5,100 psi) |
| Sectional Design | Modular construction with up to 12 working sections |
| Section Pitch | 56 mm (2.20 in) |
| Control Types | Manual, Hydraulic, Pneumatic, Electro-hydraulic, and Electro-pneumatic |
| Circuit Options | Parallel, Series, and Tandem; Special Load Sensing (LS) versions available |
| Auxiliary Valves | Port relief, anti-cavitation, and combined valve options for each section |
| Spool Variety | Wide range of interchangeable spools (Double acting, Single acting, Motor spool, etc.) |
| Construction | High-strength cast iron body for heavy-duty durability |
Typical Applications
This valve is the preferred choice for large-scale mobile machinery, including:
- Construction & Lifting: Wheel loaders, all-terrain cranes, truck-mounted cranes, and aerial platforms.
- Heavy Industrial: Drilling rigs, presses, and sea platform cranes.
- Waste Management: Refuse compactors, hook loaders, and skip loaders






















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