Product Overview
The Siemens VXP45 series is a line of three-port seat valves engineered for precise control of fluid flow in industrial process and HVAC systems. The VXP45.20-4 and VXP45.25-10 models operate as mixing or diverting valves, utilizing a pressure-balanced plug and seat design to deliver accurate flow modulation with minimal leakage. These valves are designed for use with Siemens actuators (such as the SKD, SKB, or SQL series) and are suitable for both open and closed-loop control applications. Their robust construction and precise machining make them ideal for regulating hot water, chilled water, and steam in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Three-Port Seat Valve (Mixing / Diverting) |
| Model Designation | VXP45.20-4 / VXP45.25-10 |
| Nominal Size (DN) | DN20 (VXP45.20-4) / DN25 (VXP45.25-10) |
| Flow Characteristic | Equal percentage or linear (depending on actuator/trim) |
| Operating Pressure | Standard Industrial Grade (Up to 1600 kPa / 16 bar) |
| Leakage Rate | ≤ 0.05% of Kvs (Class IV per IEC 60534-4) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Threaded or Flanged) |
| Actuator Compatibility | Siemens SKD, SKB, SKC, SQL series (electric actuators) |
| Media Temperature Range | -10°C to +150°C (depending on sealing material) |
Engineering Features & Advantages
- Precision Performance: Pressure-balanced plug and seat design ensures accurate flow control and low actuation force, reducing actuator sizing and energy consumption.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with corrosion-resistant materials and robust stem sealing for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement without piping modifications.
- Versatile Control: Suitable for both mixing and diverting configurations, providing flexibility in system design for heating, cooling, and process control loops.
- Low Leakage: Metal-to-metal or soft-seated trim options achieve tight shutoff, minimizing energy loss and improving process efficiency.
Typical Industrial Applications
These three-port seat valves are widely used in industrial and building technology systems, including: HVAC heating and cooling circuits
PRODUCT IMAGES
SIEMENS VXP45.20-4 / VXP45.25-10 Three-Port Seat Valve
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Shop the genuine SIEMENS VXP45.20-4 / VXP45.25-10 Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a 4-way, 2-position spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.