Specifications of the Quantex Pump
Packaging Options
Standalone Pump - in this case the pump attaches in a line between the source and the output. A motor engages with the central rotor to pump fluid. The alignment of the pump inlet and outlet can be varied to suit the application.
Pump Integrated into Packaging - for most dispensing applications, the pump can be integrated with the packaging container, either internally or externally. If it is inside the container, fluid is brought out through the base of the pump. In this configuration the pump is hidden and cannot be tampered with.
If the pump is outside the container, its rotation can be used to show that the pump is functioning - particularly useful if the fluid is being dispensed into a closed container.
We work with packaging specialists to develop cost effective packaging solutions. We can provide bag-in-box and bag-in-bottle packaging for airtight dispensing.
Sizes and Flow Rates
We have worked on applications ranging from 0.1ml/hour (<3μl/s) for medical applications, and up to 200ml/s for dispensing food and beverages. The lowest flow rate uses a pump 22mm long, with a 14mm diameter. A flow rate of 15 ml/s uses a pump 32mm long, with a 22mm diameter. The highest of these flow rates requires a pump 46mm long, with a 34mm diameter.
Reversible Flow
The pump is reversible, which allows some extra functions to be performed.
Drip prevention If the pump is reversed at the end of the dispense operation, it will pull back the last part of the fluid into the pump. This is useful for preventing drying of materials that could otherwise block the outlet, such as soap and sauces.
Precision filling The pump can be used to fill the fluid container. This can be useful if the volumes are not high or conventional filling methods cannot be used i.e. the fluid needs to be kept free of air. For microchemistry or diagnostic testing, the pump can be used to fill mixing chambers and then empty them after a set time.
Typical pump performance
Range of flow rate | 3μl/s to 10ml/s and higher
| Individual pumps can be used over a 1000:1 output rate by varying rotation speed |
Port positions | Can be varied | Tangential, axial or paraxial |
Accuracy | ±3% down to ±1% | Depends on design and motor torque available |
Outlet pressure | Up to 3 bar |
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Inlet vacuum | Up to 0.5 bar |
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Chemical compatibility | Most common materials | Includes acids, alkalis, oils, most solvents |
Temperature range | 0°C to more than 40°C | Higher temperature materials can be used |
Design life | More than 50l of fluid dispensed at maximum specified rate |
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Variation of flow during life | Less than ±1% |
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Torque (low flow rate pump) | 50mNm | Up to 0.3ml/s |
Torque (medium flow rate) | 140mNm | Up to 3ml/s |
Torque (high flow rate) | 400mNm | Up to 10ml/s |
Motor power (low flow rate) | <1.5W | At full rated speed |
Motor power (medium flow rate) | 10W | At full rated speed |
Motor power (medium flow rate) | 18W | At full rated speed |
Mass of pump | 2g to 8g | Depending on flow rate required |
Unit cost | US$0.15 to $0.45 | Depending on flow rate, specification, annual volume |
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