Siemens VXP45.40-25 3-Way Globe Valve, Male Thread, DN40 PN16
Siemens VXP45.40-25 Externally Threaded 3-Way Seat Valve DN40 PN16
The Siemens VXP45.40-25 is a 3-way seat control valve with external thread (G) connection and a bronze body. In size DN40 with a kvs value of 25 m³/h, it provides mixing or diverting control in heating, cooling and domestic water circuits. Stroke 5.5 mm. Medium temperature range is 1…110 °C.
The seat valve is controlled by a linear electromotive actuator with modulating or 3-position control. Threaded fitting sets for the valve connection are available separately; compatible actuators and accessories are listed below.
Ordering information
| Model | DN | kvs | PN | Connection | Stroke | Order code |
|---|---|---|---|---|---|---|
| VXP45.40-25 | DN40 | 25 m³/h | PN16 | G 2¼" | 5.5 mm | BPZ:VXP45.40-25 |
Technical specifications
| Specification | Value |
|---|---|
| Nominal size (DN) | DN40 |
| Pressure rating (PN) | PN16 |
| kvs value | 25 m³/h |
| Number of ways | 3 |
| Connection type | External thread |
| Stroke | 5.5 mm |
| Body material | Bronze CC499K |
| Connection thread | G 2¼" |
| Medium temperature | 1…110 °C |
| Valve characteristic | Linear |
Compatible products
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:
- A6V10341181 — Test report (EN 10204) (German)
- A6V16098211 — Environmental product declaration (EPD) (English)
For the right model selection and wholesale or project pricing, contact the Novus Energy engineering team on our WhatsApp line.