Product Overview
The COAX 5-VMK 25 NC (Part No. 522240) is a coaxial, direct-acting solenoid valve engineered by COAX GmbH, a globally recognized specialist in coaxial valve technology. Unlike conventional spool or poppet designs, this valve utilizes a pressure-balanced coaxial piston arrangement in which the actuating solenoid acts directly on the sealing element along the same axis as the media flow path. This design delivers exceptionally high flow rates within a compact body, requires no minimum differential pressure to operate, and provides reliable bidirectional shut-off. The 5-VMK 25 NC is configured as a normally closed (NC) 2/2-way valve, meaning the flow path is blocked when de-energized and opens upon solenoid energization. It is a robust, media-separated process valve suited for demanding industrial service involving neutral and slightly aggressive gases and liquids, and is equally applicable in hydraulic pilot and control circuits where leak-tight sealing and fast, repeatable switching are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Coaxial Solenoid Valve (2/2-Way, Direct-Acting, Normally Closed) |
| Model Designation | 5-VMK 25 NC / 522240 |
| Manufacturer | COAX GmbH |
| Nominal Bore (DN) | DN 25 (approx. 1″) |
| Operating Pressure | Standard Industrial Grade (up to rated bar; direct-acting, no minimum pressure required) |
| Actuation | Direct-acting solenoid, pressure-balanced coaxial piston |
| Flow Direction | Bidirectional (flow-optimized straight-through coaxial path) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (threaded or flange porting per COAX standard) |
| Sealing Principle | Media-separated, elastomer-seated coaxial seal for bubble-tight shut-off |
Engineering Features & Advantages
- Precision Performance: The coaxial, pressure-balanced piston design permits direct solenoid actuation with no minimum differential pressure, delivering fast, repeatable switching and high flow capacity relative to the compact valve body.
- Leak-Tight Sealing: Media-separated construction with an elastomer seat ensures reliable, bubble-tight shut-off in the normally closed position, protecting downstream circuits and processes.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust solenoid and wear-resistant sealing elements suited to high cycle rates.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original COAX OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
It is a robust, media-separated process valve suited for demanding industrial service involving neutral and slightly aggressive gases and liquids, and is equally applicable in hydraulic pilot and control circuits where leak-tight sealing and fast, repeatable switching are essential.
PRODUCT IMAGES
COAX 5-VMK 25 NC / 522240 Coaxial Solenoid Valve
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Shop the genuine COAX 5-VMK 25 NC / 522240 Solenoid Operated 2/2-Way Seat Valve. This Germany-made 24V DC hydraulic component features a normally closed design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.