Product Overview
The Siemens VVG41.40 is a 2-port threaded control valve engineered for precise regulation of hot and cold water, brine, and other non-corrosive media in closed-loop HVAC and industrial process systems. As a member of the Siemens VVG41 series, this valve features a robust bronze body with an external threaded connection and is designed for modulating control when paired with Siemens electro-hydraulic or electro-mechanical actuators (such as the SKD, SKB, or SKC series). The VVG41.40 operates on a linear plug stroke principle, delivering accurate flow modulation proportional to the actuator signal. Its 2-port configuration makes it ideal for throttling and mixing applications where precise temperature or flow control is critical, ensuring energy-efficient operation and stable system performance in demanding building automation and industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Port Threaded Control Valve (Process & Pneumatic Valve) |
| Model Designation | VVG41.40 |
| Manufacturer | Siemens |
| Nominal Size (DN) | DN40 (1 1/2″) |
| Port Configuration | 2-Port, external threaded (ISO 228-1) |
| Operating Pressure | Up to 1600 kPa (16 bar) static; suitable for standard industrial closed-loop systems |
| Media Temperature Range | -25°C to +150°C (depending on actuator and media compatibility) |
| Body Material | Bronze (Rg5 / CC491K) |
| Plug & Stem Material | Stainless steel plug, stainless steel stem |
| Seat Leakage Class | Class IV (0.01% of Kvs) per IEC 60534-4 |
| Flow Characteristic | Linear or equal-percentage (depending on plug/trim configuration) |
| Mounting & Connection | Threaded pipe connection; actuator mounting per Siemens standard interface (ISO 5211 compatible) |
Engineering Features & Advantages
- Precision Performance: The 2-port threaded control valve (process & pneumatic valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original SIEMENS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 1600 kPa (16 bar) static; suitable for standard industrial closed-loop systems, supporting stable operation across the full working range.
Typical Industrial Applications
Its 2-port configuration makes it ideal for throttling and mixing applications where precise temperature or flow control is critical, ensuring energy-efficient operation and stable system performance in demanding building automation and industrial environments.
PRODUCT IMAGES


SIEMENS VVG41.40 2-Port Threaded Control Valve
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