Special pumps for laboratory applications exist because laboratories have very specific requirements that cannot be met by conventional pumps. These requirements depend on the processes, precision and chemical properties of the substances used in the laboratory. Here are the main reasons:
1. Precision and accuracy
Laboratory processes often require extremely precise dosing of liquids or gases. Laboratory pumps, such as metering pumps or syringe pumps, allow precise control over the delivery volume and delivery rate, often in the microliter range.
2. Chemical resistance
Laboratories often use aggressive chemicals, solvents or corrosive substances. Laboratory pumps are often made of special materials such as PTFE, PFA or stainless steel to ensure that they are chemically resistant and do not cause contamination.
3. Sterility and purity
In areas such as biotechnology or pharmaceuticals, pumps must be sterile and avoid contamination of samples. Laboratory pumps are therefore made of materials that are easy to clean or sterilize and can be operated in sterile environments.
4. Low volumes
Laboratory applications often work with very small volumes. Standard pumps are often too large or inaccurate for such volumes. Special pumps such as micro-dosing pumps are designed to precisely pump the smallest amounts of liquid.
5. Compatibility with sensitive samples
Sensitive substances, such as biological samples, must not be damaged during the pumping process. Peristaltic pumps or diaphragm pumps, which work without direct contact between the pump and the medium, are ideal for such applications.
6. Versatility
Laboratory pumps are often modular and can be adapted to different applications, e.g. by varying flow rates, different temperature ranges or integration into automated systems.
7. Safety requirements
Laboratories often work with hazardous substances or under special conditions such as vacuum or high pressure. Laboratory pumps are designed to operate safely in such environments, with features such as overpressure protection or gas-tight construction.
8. Temperature and pressure control
Certain laboratory applications require precise control of temperature and pressure. Some laboratory pumps are equipped with integrated control systems that can monitor and regulate these parameters.
Conclusion
Laboratory pumps are specifically designed to meet the unique challenges and requirements of laboratory environments. They offer precise control, chemical resistance, and ensure purity and safety, which is essential for reliable and reproducible results in research and development.
