SIEMENS VVF47.80 Two-Way Flanged Valve DN80 Standard

The SIEMENS VVF47.80 Two-Way Flanged Valve DN80 Standard stands as a robust and reliable component for precise fluid control in demanding industrial environments. This valve is engineered for superior performance, offering excellent sealing capabilities and durability. Its design prioritizes operational efficiency and integration ease within various process control systems. The VVF47.80 boasts a DN80 nominal size, a PN16 pressure rating, and a temperature range of -20 to 150°C, making it suitable for a wide spectrum of applications. With a flow coefficient (kvs) of 125 m³/h and an actuator connection of M3, it provides dependable throttling and shut-off functionalities.

Product Specifications

| Specification        | Value                                  |

| :------------------- | :------------------------------------- |

| Valve Type           | Two-Way                                |

| Flange Standard      | DN80                                   |

| Nominal Pressure     | PN16                                   |

| Temperature Range    | -20 to 150°C                           |

| Flow Coefficient (kvs) | 125 m³/h                               |

| Actuator Connection  | M3                                     |

| Body Material        | Cast Iron GG25                         |

| Seal Material        | EPDM                                   |

| Actuation            | Electric/Electro-hydraulic             |

| Connection Type      | Flanged                                |

| Control Type         | Throttling                             |

Core Features & Market Positioning

The SIEMENS VVF47.80 distinguishes itself through its robust construction and precise control capabilities. Engineered with a cast iron GG25 body and EPDM seals, it ensures longevity and resistance to a broad range of media commonly found in HVAC and industrial processes. Its flanged connection, conforming to DN80 standards, guarantees secure and leak-free installation, a critical factor in maintaining system integrity and preventing costly downtime. This valve is positioned as a premium solution for applications requiring reliable throttling and shut-off, where accuracy and durability are paramount. Its compatibility with various Siemens actuators allows for seamless integration into automated control loops, enhancing system efficiency and responsiveness. The inherent design focuses on delivering consistent performance, setting it apart from lighter-duty alternatives in competitive market segments.

Key Application Scenarios

This SIEMENS VVF47.80 two-way flanged valve is ideally suited for controlling water flow in building automation systems, specifically within HVAC applications for heating and cooling circuits. Its DN80 size and PN16 rating make it a robust choice for main supply and return lines. It excels in applications requiring precise temperature regulation in large spaces, such as commercial buildings, industrial facilities, and district heating networks. The valve's ability to perform accurate throttling is crucial for maintaining desired comfort levels and optimizing energy consumption. Furthermore, its suitability for temperatures between -20 to 150°C broadens its applicability to process heating and cooling loops in various industrial sectors.

Practical System Integration Guidance

Integrating the SIEMENS VVF47.80 into existing systems is streamlined due to its standard DN80 flanged connection. Ensure proper gasket selection and torque application during flange assembly to guarantee a tight seal and prevent leaks. For actuation, the M3 connection point is designed for compatibility with specific Siemens actuators, such as the SQX series, which offer precise positioning and feedback capabilities. Installation should follow local regulations and best practices for fluid handling systems, including provisions for expansion and maintenance access. Electrical connections for actuators must adhere to the manufacturer's wiring diagrams, paying close attention to power supply, control signals, and any safety interlocks to ensure correct operation and protection against overloads.

Operation and Risk Mitigation

Proper operation of the SIEMENS VVF47.80 involves regular inspection of the valve body, seals, and actuator for any signs of wear or leakage. Monitoring its performance against setpoints helps identify deviations that could indicate operational issues. To mitigate risks, ensure the valve is operated within its specified temperature and pressure limits (-20 to 150°C, PN16). Avoid rapid cycling or abrupt shut-offs if the media is susceptible to water hammer, which could stress the valve and associated piping. Regular maintenance, including periodic testing of the actuator and checking for seal integrity, is crucial for preventing unexpected failures and ensuring consistent control, thereby minimizing process disruptions and safety hazards.

Scalability & Long-Term Value

The SIEMENS VVF47.80 offers significant long-term value through its robust design and compatibility with modern automation platforms. Its integration with Siemens' broader control systems facilitates seamless upgrades and expansion of existing infrastructure. The valve's ability to work with intelligent actuators enables it to be a node within IIoT architectures, providing valuable operational data for predictive maintenance and process optimization. This ensures that the valve remains a relevant component even as systems evolve towards greater digitalization and connectivity, offering a secure investment for future-proofing industrial fluid control applications.

FAQs

What is the operating temperature range of the SIEMENS VVF47.80 valve?

The SIEMENS VVF47.80 two-way flanged valve operates within a temperature range of -20 to 150°C. This wide thermal tolerance ensures its reliability in both very cold and moderately hot industrial environments. It is suitable for a variety of process fluids and HVAC applications.

This specification makes it a versatile choice for many climate control and industrial process setups. It can handle applications that require heating or cooling, accommodating significant thermal fluctuations.

Users can confidently deploy this valve in systems where ambient temperatures might vary or where process media temperatures undergo substantial changes. This inherent resilience simplifies system design and reduces the need for specialized, temperature-limited components.

What are the primary applications for the SIEMENS VVF47.80 valve?

This valve is primarily used in HVAC systems for controlling heating and cooling water flow. It is also suitable for various industrial process control applications requiring precise fluid regulation. Its DN80 size and PN16 rating make it ideal for main line installations.

The SIEMENS VVF47.80 excels in applications demanding accurate throttling and reliable shut-off functionalities. This includes managing flow in large buildings, industrial facilities, and district heating networks where consistent temperature and flow control are critical.

Its robust construction and specific technical parameters position it as a dependable component for maintaining optimal conditions in demanding environments. It is a key element in ensuring energy efficiency and operational stability in these sectors.

How does the flanged connection of the SIEMENS VVF47.80 benefit installation?

The flanged connection ensures a secure, leak-proof, and robust mechanical joint between the valve and the piping system. This adherence to standard DN80 flanging simplifies installation and maintenance procedures.

This type of connection is crucial for high-pressure applications and critical systems where any leakage could lead to significant operational issues, safety hazards, or environmental concerns. It provides a reliable mechanical interface.

Using a flanged design facilitates easier disassembly for inspection or repair compared to welded or threaded connections, contributing to reduced downtime and more manageable maintenance workflows over the valve's lifecycle.