Bio-Chem Fluidics 130SP Series Micro-Pump: maximum inertness for the toughest applications
The 130SP Series is the most chemically resistant ported version in the Bio-Chem Fluidics Micro-Pump family. The pump delivers a discrete, repeatable liquid volume of 20 to 60 µl per cycle at a maximum flow rate of 7,2 ml/min. The operating mechanism is fully separated from the fluid path by a diaphragm, so the medium never comes into contact with the solenoid or spring.
The difference from the 120SP is the housing choice: the 130SP is available in PTFE or POM. The PTFE version offers the highest chemical inertness and is preferred for applications with concentrated acids, bases or high-purity reagents. The POM version is suitable for less aggressive media where cost considerations play a role.
Applications
The 130SP is ideally suited for water analysers, liquid chromatography, clinical diagnostics and other analytical OEM instruments where the liquid is aggressive or ultra-pure. The all-PTFE version with PTFE diaphragm and FFKM valves offers the highest achievable level of chemical inertness in a miniature pump of this size. The pump is self-priming and can draw liquid from an unpressurised reservoir up to 1,3 metres below the pump.
Choice of material
The 130SP is available in two housing materials. PTFE offers the highest chemical inertness for the toughest applications and is supported by PEEK backing plates that ensure structural integrity without touching the medium. POM is a cost-effective choice for less aggressive media.
For the diaphragm, the choice is between PTFE (maximum inertness) and EPDM (for aqueous solutions). For the check valves, you can choose from FFKM (for the harshest chemical conditions), FKM (for solvents and oils) or EPDM (for aqueous applications).
Operation and control
The 130SP can be cycled at a maximum frequency of 2 Hz. The "on" time is fixed at 150 ms to maintain dispensing precision. The flow rate is reduced by extending the "off" time. The pump runs on 12 VDC or 24 VDC and effectively consumes 1,2 Watt at maximum cycle frequency.
The pump is supplied with a 3-meter silicone connection cable with open ends. The wiring is PTFE-coated. The recommended tubing diameter for inlet and outlet is 1/32" (0,80 mm) hard-wall tubing.
Properties
- Dispense volume: 20, 30, 40, 50 or 60 µl per cycle
- Setpoint accuracy: ±10%
- Repeatability: ±5%
- Max. flow rate: 7,2 ml/min (at 60 µl/cycle, 2 Hz)
- Internal volume: 105 µl
- Connections: 2x 1/4"-28 UNF, flat-bottom
- Housing material: PTFE (with PEEK backing plates) or POM
- Diaphragm material: PTFE or EPDM
- Valve materials: FFKM, FKM or EPDM
- Power supply: 12 VDC or 24 VDC, 4 Watt
- Max. cycle frequency: 2 Hz
- Fixed "on" time: 150 ms; minimum "off" time: 350 ms
- Self-priming, suction lift up to 1,3 m
- Outer diameter: 25,4 mm
- Total length: 67,8 mm
- Mounting: via mounting holes in the pump base or external mounting accessories
Technical specifications
| Feature | 20 µl | 30 µl | 40 µl | 50 µl | 60 µl |
|---|
| Max. flow | 2,4 ml/min | 3,6 ml/min | 4,8 ml/min | 6,0 ml/min | 7,2 ml/min |
| Accuracy | ±10% | ±10% | ±10% | ±10% | ±10% |
| Repeatability | ±5% | ±5% | ±5% | ±5% | ±5% |
| Internal volume | 105 µl | 105 µl | 105 µl | 105 µl | 105 µl |
| Electrical | 12 VDC | 24 VDC |
|---|
| Power | 4,0 W | 4,0 W |
| Power consumption | 0,32 A | 0,16 A |
| Eff. continuous power | 1,2 W | 1,2 W |
