Product Overview
The Siemens VVI41.40-25 is a 2-port threaded control valve engineered for precise regulation of flow and pressure in industrial process and pneumatic systems. As part of Siemens’ proven VVI41 series, this valve utilizes a robust stem-guided plug design that delivers accurate modulating control across a wide range of operating conditions. The VVI41.40-25 features a 40 mm nominal port size and is designed for threaded connection, making it suitable for direct integration into pipelines without the need for flanged adapters. Its balanced plug construction minimizes actuator force requirements, ensuring stable performance and extended service life in demanding process environments. This valve is typically paired with Siemens electromechanical or electro-hydraulic actuators for precise positioning in closed-loop control applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | 2-Port Threaded Control Valve (Process & Pneumatic Valve) |
| Model Designation | VVI41.40-25 |
| Nominal Port Size | DN40 (40 mm) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per process media) |
| Connection Type | Threaded (BSP / NPT per specification) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
| Flow Characteristic | Equal percentage / Linear (application dependent) |
| Plug Design | Stem-guided, balanced plug |
| Body Material | Cast iron / Bronze / Stainless steel (model dependent) |
Engineering Features & Advantages
- Precision Performance: The stem-guided balanced plug ensures accurate positioning and stable modulation, minimizing hysteresis and providing repeatable control in process loops.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust body construction and corrosion-resistant trim options for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens OEM standards, ensuring drop-in replacement without pipeline modification.
- Threaded Connection: Simplifies installation and maintenance in tight spaces, reducing downtime and eliminating the need for additional flange hardware.
- Actuator Compatibility: Designed for seamless integration with Siemens electromechanical and electro-hydraulic actuators for precise closed-loop control.
Typical Industrial Applications
The Siemens VVI41.40-25 2-port threaded control valve is widely deployed in heavy industrial scenarios including: process heating and cooling circuits for precise temperature regulation; pneumatic and compressed air systems requiring accurate flow control; chemical and
PRODUCT IMAGES
SIEMENS VVI41.40-25 2-Port Threaded Control Valve
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Shop the genuine SIEMENS VVI41.40-25 2-Way Normally Closed Solenoid Valve. This Germany-made 24V DC hydraulic component features a direct-acting poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.