Bio-Chem Fluidics 150SP large-volume micro-pump: precision dispensing of 100 to 250 µl
The 150SP Series is the large-volume version in the Bio-Chem Fluidics Micro-Pump family. The pump delivers a discrete, repeatable liquid volume of 100 to 250 µl per cycle at a maximum flow rate of 24 ml/min. Its dispense volume and flow are considerably larger than those of the 120SP and 130SP-series, while the basic operation is identical: a solenoid-driven diaphragm pump with a fully inert fluid path.
The larger internal volume of 710 µl makes the 150SP suitable for applications that require a higher liquid output per cycle, such as chemical dosing in larger analysis systems, sterilisation applications or waste removal at higher flow rates.
Applications of the 150SP large-volume micro-pump
The 150SP is suitable for analytical OEM instruments, water analysers and diagnostic systems where the volumes of the 120SP or 130SP are too small. Typical applications are chemical pre-treatment of larger liquid streams, dosing of sterilisation fluid in industrial cleaning systems and waste removal at higher flow rates. 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 150SP is available only with a PPS or PEEK housing, both with an EPDM diaphragm and EPDM check valves. PPS offers good chemical resistance with high structural strength. PEEK offers higher chemical resistance and withstands a wider range of aggressive media. For applications that require a PTFE fluid path, the 130SP or 139SP is the preferred choice.
Operation and control
The 150SP can be cycled at a maximum frequency of 1,6 Hz, slightly lower than the smaller models because of the larger pump volume. The fixed "on" time is 200 ms; the minimum "off" time is 400 ms. The flow rate is reduced by extending the "off" time. The pump runs on 12 VDC or 24 VDC and consumes 8 Watt, effectively 3,2 Watt at maximum cycle frequency.
The pump is supplied with a 3-meter silicone connection cable with open ends. The recommended inlet tubing diameter is 1/8" (3,2 mm) hard-wall tubing. Mounting is via two #8-32 UNC mounting holes in the pump base, as standard on the 150SP.
Properties
- Dispense volume: 100, 125, 150, 175, 200, 225 or 250 µl per cycle
- Setpoint accuracy: ±10%
- Repeatability: ±5%
- Max. flow rate: 24 ml/min (at 250 µl/cycle, 1,6 Hz)
- Internal volume: 710 µl
- Connections: 2x 5/16"-24 UNF, flat-bottom
- Housing material: PPS or PEEK
- Diaphragm material: EPDM
- Valve materials: EPDM
- Power supply: 12 VDC or 24 VDC, 8 Watt
- Max. cycle frequency: 1,6 Hz
- Fixed "on" time: 200 ms; minimum "off" time: 400 ms
- Self-priming, suction lift up to 1,3 m
- Outer diameter: 38,1 mm
- Total length: 99,1 mm
- Mounting: via 2x #8-32 UNC mounting holes (standard)
Technical specifications
| Dispense volume | 100 µl | 125 µl | 150 µl | 175 µl | 200 µl | 225 µl | 250 µl |
|---|
| Max. flow | 9,6 ml/min | 12,0 ml/min | 14,4 ml/min | 16,8 ml/min | 19,2 ml/min | 21,6 ml/min | 24,0 ml/min |
| Accuracy | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% | ±10% |
| Repeatability | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% |
| Internal volume | 710 µl | 710 µl | 710 µl | 710 µl | 710 µl | 710 µl | 710 µl |
| Electrical | 12 VDC | 24 VDC |
|---|
| Power | 8,0 W | 8,0 W |
| Power consumption | 0,66 A | 0,33 A |
| Eff. continuous power | 3,2 W | 3,2 W |
