Product Overview
The WANDFLUH AS22101a is a direct-acting solenoid directional seat valve engineered for leak-free load holding and precise flow control in industrial hydraulic systems. Manufactured by Wandfluh AG, a recognized Swiss specialist in high-pressure hydraulic valves, the AS22101a belongs to the AS series of 2/2 and 3/2 seat-type directional valves. Unlike spool valves, this seat design provides a positive, virtually zero-leakage seal in the closed position, making it ideal for applications requiring reliable load holding, pressure isolation, or safe blocking of actuator circuits. The valve is actuated by a wet-pin AC or DC solenoid and returns to its normal position via a robust return spring, ensuring fail-safe operation in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Seat Valve (2/2 or 3/2 way) |
| Model Designation | AS22101a |
| Operating Pressure | Up to 350 bar (dependent on port configuration and seal type) |
| Nominal Flow Rate | Up to 40 L/min (typical for AS series size 2) |
| Actuation Type | Direct-acting wet-pin solenoid (AC or DC) |
| Mounting & Connection | Cartridge or flange design, ISO 4401 / CETOP interface compatible |
| Sealing Principle | Seat-type (poppet) design for zero-leakage closure |
| Return Mechanism | Spring return to normal position |
Engineering Features & Advantages
- Zero-Leakage Seat Design: The poppet/seat sealing principle ensures virtually no internal leakage in the closed position, providing reliable load holding and safe pressure isolation without the drift associated with spool valves.
- Fast Solenoid Response: Direct-acting wet-pin solenoid delivers rapid, repeatable switching for precise control of hydraulic circuits, with low power consumption and high switching reliability.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened sealing elements and a robust housing designed to withstand high pressure and demanding duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Wandfluh AS series standards, ensuring drop-in replacement without modification.
- Compact Cartridge Construction: Space-saving design simplifies integration into manifold blocks and custom hydraulic power units.
Typical Industrial Applications
The WANDFLUH AS22101a is widely deployed in hydraulic systems requiring leak-free directional control and load holding. Typical applications include plastic injection molding machines (clamping and injection circuits), metallurgical presses and rolling mills (pressure holding and safety blocking), construction and marine hydraulics (outrigger and winch control), and CNC machine tools (tool clamping and pallet changing). It is also suitable
PRODUCT IMAGES
WANDFLUH AS22101a Solenoid Directional Seat Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine WANDFLUH AS22101a Solenoid Directional Seat Valve. This Swiss-made hydraulic component features a robust poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.