Siemens VVF43…K Flanged 2-Way Pressure-Balanced Control Valve PN16
Siemens VVF43…K Flanged 2-Way Pressure-Balanced Control Valve PN16
The Siemens VVF43…K series are flanged 2-way pressure-balanced seat control valves. In sizes DN200–DN250 with kvs values of 450–630 m³/h, they provide flow control in air handling unit, boiler room, heat exchanger and district heating circuits. Body material: cast steel ASTM A216WCB (GP240GH). Medium temperature range is -5…220 °C. The pressure-balanced plug design allows the valve to close against high differential pressures with a lower positioning force.
The valve is operated by a linear electromotive or electrohydraulic actuator; the actuator is selected according to stroke and close-off pressure. Siemens actuators verified with this series are listed below.
Models and order codes
| Model | DN | kvs | PN | Stroke | Order code |
|---|---|---|---|---|---|
| VVF43.200-450K | DN200 | 450 m³/h | PN16 | 40 mm | S55206-V123 |
| VVF43.250-630K | DN250 | 630 m³/h | PN16 | 40 mm | S55206-V124 |
Technical specifications
| Specification | Value |
|---|---|
| Number of ways | 2 |
| Connection type | Flanged |
| Body material | Cast steel ASTM A216WCB (GP240GH) |
| Medium temperature | -5…220 °C |
Compatible products
- Siemens SKB / SKC Electrohydraulic Valve Actuator 2800 N — SKC32.60, SKC60
This list is verified compatibility information based on Siemens product matching data; it is not a list of similar-product suggestions. You can make the final selection with our engineering team based on your project conditions (differential pressure, stroke, control signal).
Selection and installation notes
- The kvs value is selected according to the required pressure drop across the valve at the design flow rate; an oversized kvs reduces control quality.
- When selecting the actuator, choose an actuating force suited to the valve's stroke and close-off differential pressure.
- For glycol-water mixtures or special media, verify the valve's media compatibility in the datasheet.
Technical documents
You can find them on the manufacturer's website by searching for the Siemens document number:
- A6V10342890 — Data sheet (English)
- A6V10344991 — Data sheet (English)
- A6V10910549 — Data sheet (German)
- A6V10904459 — Data sheet (English)
- A6V10893215 — Data sheet (English)
- A6V10424453 — Test report (EN 10204) (German)
For the right model selection and wholesale or project pricing, contact the Novus Energy engineering team on our WhatsApp line.