Product Overview
The Siemens MVI421.15 is a modulating magnetic valve engineered for precise, continuous control of fluid and gas flow within industrial process and pneumatic systems. As a modulating (proportional) magnetic valve, it regulates flow or pressure output in direct proportion to an electrical control signal, enabling smooth, infinitely variable actuation rather than simple on/off switching. The MVI421.15 is designed for integration into burner management, combustion control, and general process regulation loops, where accurate modulation of media is critical to system efficiency and safety. Its magnetic (solenoid) actuation provides fast, repeatable response, making it a reliable component in demanding industrial control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Modulating Magnetic Valve (Process & Pneumatic Valve) |
| Model Designation | MVI421.15 |
| Manufacturer | Siemens |
| Actuation Principle | Electromagnetic (solenoid) modulating / proportional control |
| Operating Pressure | Standard Industrial Grade (up to rated bar per manufacturer data) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
Engineering Features & Advantages
- Precision Modulation: Delivers continuously variable flow control proportional to the input signal, enabling accurate process regulation rather than discrete on/off operation.
- Fast Solenoid Response: Magnetic actuation ensures rapid, repeatable valve positioning for tight control loop performance.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, including elevated temperatures and demanding duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens OEM standards for drop-in service.
Typical Industrial Applications
The Siemens MVI421.15 modulating magnetic valve is typically deployed in industrial burner and combustion control systems, boiler and furnace process regulation, general pneumatic and process media control loops, and OEM equipment requiring precise proportional valve actuation. It is well suited to applications in power generation, chemical processing, and heavy manufacturing where accurate modulation of flow or pressure is essential to operational efficiency and safety.
PRODUCT IMAGES

SIEMENS MVI421.15 Modulating Magnetic 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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Shop the genuine SIEMENS MVI421.15 Magnetic Valve. This Germany-made 24V DC hydraulic component features a 2-way normally closed design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.