Product Overview
The Siemens VVF53.25-10 (S55208-V120) is a 2-port flanged control valve engineered for precise modulation of flow in heating, ventilation, air conditioning (HVAC), and general process control systems. As part of Siemens’ proven VVF53 series, this valve features a robust bronze or cast iron body with a flanged connection, designed for use with Siemens electromagnetic or electrohydraulic actuators. The valve operates on a linear or equal-percentage characteristic, providing accurate flow regulation in closed-loop control circuits. Its 2-port design allows for throttling and shut-off service, making it a critical component in building automation and industrial process lines where reliable, repeatable flow control is essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Port Flanged Control Valve (Process & Pneumatic Valve) |
| Model Designation | VVF53.25-10 / S55208-V120 |
| Nominal Size (DN) | DN25 (1 inch) |
| Flow Coefficient (kvs) | 10 m³/h (nominal) |
| Operating Pressure | Standard Industrial Grade (up to PN16 / 16 bar) |
| Mounting & Connection | Flanged per ISO 7005-2 / Manufacturer Interface |
| Valve Characteristic | Linear or Equal-Percentage (selectable via actuator) |
| Body Material | Bronze / Cast Iron (as per Siemens VVF53 series) |
| Actuator Compatibility | Siemens electromagnetic, electrohydraulic, or pneumatic actuators |
Engineering Features & Advantages
- Precision Flow Control: The 2-port flanged design with a kvs of 10 m³/h ensures accurate modulation of flow, reducing energy consumption and improving process stability in closed-loop systems.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust body and flanged connections that withstand vibration, thermal cycling, and pressure surges.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens OEM standards, including the S55208-V120 designation, ensuring drop-in replacement without piping modifications.
- Versatile Actuation: Compatible with a wide range of Siemens actuators, allowing flexible integration into existing control loops and building automation systems.
- Leakage Class: Designed to meet standard industrial leakage requirements for control valves, ensuring minimal bypass and efficient operation.
Typical Industrial Applications
This Siemens VVF53.25-10 control valve is
PRODUCT IMAGES




SIEMENS VVF53.25-10 / S55208-V120 2-Port Flanged Control Valve
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Shop the genuine SIEMENS VVF53.25-10 / S55208-V120 2-Way Modulating Control Valve. This Germany-made 24V AC/DC hydraulic component features a pressure-compensated plug design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.