Siemens VVF53.40-20 Flanged 2-Way Control Valve DN40
Siemens VVF53.40-20 Flanged 2-Way Control Valve DN40
The Siemens VVF53.40-20 is a flanged 2-way seat control valve. In size DN40 with a kvs value of 20 m³/h, it provides flow control in air handling unit, boiler room, heat exchanger and district heating circuits. Body material: ductile iron EN-GJS-400-18-LT. Suitable medium: thermal oil. Medium temperature range is -20…220 °C.
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.
Ordering information
| Model | DN | kvs | PN | Stroke | Order code |
|---|---|---|---|---|---|
| VVF53.40-20 | DN40 | 20 m³/h | PN25 | 20 mm | S55208-V125 |
Technical specifications
| Specification | Value |
|---|---|
| Nominal size (DN) | DN40 |
| Pressure rating (PN) | PN25 |
| kvs value | 20 m³/h |
| Number of ways | 2 |
| Connection type | Flanged |
| Stroke | 20 mm |
| Body material | Ductile iron EN-GJS-400-18-LT |
| Medium temperature | -20…220 °C |
| Medium type | Thermal oil |
| Valve characteristic | Equal percentage |
Compatible products
- Siemens SAX Electromotive Valve Actuator 500–800 N, 20 mm — SAX31.00
- Siemens SAV Electromotive Valve Actuator 1100–1600 N, 40 mm — SAV31.00, SAV61.00
- Siemens SKB / SKC Electrohydraulic Valve Actuator 2800 N — SKB32.50
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:
- A6V10416352 — Datasheet (English)
- A6V10344991 — Data sheet (English)
- A6V10332963 — Data sheet (German)
- A6V10333043 — Datasheet (German)
- A6V10799307 — 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.