Customer stories
Water is one of our planet's most precious resources, essential for sustaining life. One of our customers is an established service provider in environmental engineering and contributes to ensuring water quality with innovative analysis methods. For decades, a reliable VACUUBRAND vacuum pump has been an indispensable partner in their laboratory, providing efficient and high-quality water filtration as the foundation for critical microbiological investigations.
High standards for water quality
One of our client companies impresses in the petroleum and aeronautic industries with innovative solutions – from the maintenance of specialized equipment to precise water, soil and steam analyses.
The focus in the laboratory: developing new analysis methods for the highest quality standards. For example, the company develops specialized procedures for analyzing drinking water in aircraft that must meet the strict requirements of the aeronautic industry. Another focus is on analyzing wastewater in the petroleum industry to minimize environmental impact.
The VACUUBRAND MZ 2C NT vacuum pump has become an indispensable tool for filtration. It enables an efficient and precise determination of the total suspended solids in water samples. This reliable vacuum technology thus provides an essential foundation for us to evaluate water quality with the highest accuracy and contribute to a better environment. The VACUUBRAND pump supports the optimization of filtration processes, contributing to compliance with strict standards in water analysis.
Vacuum pump for efficient and high-quality filtration
One of the most important parameters in water analysis is the total suspended solids. It provides insight into the suitability for subsequent microbiological investigations. Our customer uses vacuum filtration for determination. The raw water flows through a fine-pored filter medium (matrix) that retains the solids. For this purpose, the company uses a multi sample ramp filtration, where several stations are connected to a single VACUUBRAND diaphragm vacuum pump.
Advantages of vacuum filtration
- Fast and easy filtration: The vacuum created by the pump simplifies and accelerates filtration, even with fine-pored filters that have higher resistance.
- High-quality matrix: Vacuum filtration ensures a high-quality matrix by retaining a sufficient total of suspended solids for subsequent analysis.
- Parallel sample processing: The high pumping speed allows simultaneous filtration of multiple samples, thus optimizing resource utilization.
- Compliance with standards: The process complies with requirements such as DIN ISO 3696 for "Water for analytical laboratory use."
The diaphragm vacuum pump is therefore crucial for the quality and efficiency of the entire process. Using vacuum significantly improves filtration technology and thus contributes to meeting strict standards in water analysis.
Decades of reliability: VACUUBRAND vacuum pumps
Modern MZ 2C NT vacuum pump (left) and ancient model (right) at our customer’s premises
A reliable vacuum diaphragm pump (type MP 4D, manufactured in the 1980s) from VACUUBRAND has been used for water filtration for decades.
More recently, a modern MZ 2C NT has been added to their laboratory operations. This model is also ideal for fast, efficient and high-quality vacuum filtration:
- The pump delivers a stable vacuum that significantly accelerates filtration processes – even with fine-pored filters with higher flow resistance. The vacuum can be adjusted using a control valve with pressure gauge.
- Thanks to the high suction capacity even at a pressure of 100 mbar*, several samples can be processed in parallel – for efficient use of resources in everyday laboratory work.
- At the same time, the pump contributes to a high-quality matrix by promoting the retention of relevant suspended solids for subsequent analyses.
Overall, the MZ 2C NT combines speed, efficiency and quality, making it an excellent choice for vacuum filtration.
* At a pressure of 100 mbar, 90% of atmospheric pressure is already available as driving force, which accelerates the filtration process. Further lowering the vacuum offers no significant advantages but could increase the risk of evaporation.
Important aspects of the vacuum pump for filtration
- Pumping speed (flow rate)
- Maximum vacuum
- Easy operation and maintenance
- Robustness
- Connection to filtration ramp
