Continuous Flow. Unmatched Dosing Precision.
This advanced platform is the culmination of extensive research, delivering a modular system composed of a driving unit paired with the innovative, single-use pump head. Engineered for reliability in the most demanding biopharmaceutical applications, the Swissinnov NaoStedi Disposable Piston Pump achieves a true pulseless, continuous flow profile with exceptional precision volume and accurate flow rate control. It is optimized for critical functions such as highly accurate dosing, efficient mixing, and ultra-small volume dispensing. Its performance is further secured by defining the flow rate solely by motor speed, utilizing the small 2.5 mL chamber volume to virtually eliminate displacement and ensure maximum consistency without the complexity of external flow sensor feedback.
This high-precision platform is purpose-built for key upstream and downstream processing applications. Delivering consistent results across a range of tasks, its uses include aseptic fill-finish, accurate media dispensing, small volume buffer preparation, and critical precision dosing.
Precision flow
- True pulseless, continuous steady flow profile for critical dosing
- Delivers guaranteed high flow rate accuracy of ±3%
- Provides highly consistent volume accuracy of ±1% per 2.5 mL chamber
- Enables highly accurate dosing, efficient mixing, and ultra-small volume dispensing
- Supports a stable flow rate range from 0.5 to 500 mL/min
Streamlined operation
- Designed as a ready-to-use system composed of two parts: the driving unit and the pump head
- Utilizes a completely single-use and disposable fluid path, simplifying validation
- Allows pump heads to be replaced quickly and easily
- Single-use pump chambers can be supplied gamma irradiated
- Compatible with external drive systems, including Masterflex L/S drives
Robust engineering
- Flow rate is proportional to motor speed, eliminating the need for external flow sensor feedback
- Chamber volume of 2.5 mL ensures minimal fluid displacement and maximum consistency
- Constructed from injected plastics for maximum chemical compatibility with process fluids
- Features high-performance LSR and FKM sealing gaskets for demanding biopharmaceutical applications
- Handles high fluid viscosity up to 70,000 cps
Technical data
| Pump chambers volume | 2x 2.5ml |
| Flow rate range | 0.5 to 500 ml/min (CW – max. 100 RPM) |
| Flow accuracy | +/- 3% |
| Minimum increment | 0.1ml |
| Typ. volume accuracy | +/- 1 % of full chamber (2.5ml) |
| Maximum outlet pressure | + 2.5 bars (36 psi) |
| Maximum inlet vacuum | 0.7 bars (-10 psi) |
| Typ. disposable lifetime | 18h @250 ml/min – 1.5 bars (270 Liters) |
| Fluid viscosity | up to 70’000 cps |
| Inlet / outlet connector | Female Luer Lock |
| Disposable material | Co-polyester |
| Gaskets | LSR and FKM |