Water Purification Systems

Dispense pure or ultrapure lab water with ease using a Thermo Scientific Barnstead Water Purification System. This complete line of water purification technologies includes solutions for most critical and everyday application needs, from electrodeionization to reverse osmosis and distillation. Moreover, flexible system configurations enable an excellent fit for labs of any size. Designed for simple operation and maintenance, Barnstead lab water systems eliminate slow and costly service contracts. Manufactured using the highest-grade materials and reliable technology, they incorporate more than 130 years of industry experience for dependability. There are many models and configurations to choose from five different categories (Type 1 – Ultrapure water systems; Type 2 – Pure water systems; Type 3 – Reverse osmosis water systems; Water distillation systems; Cartridge systems) to suit your needs best. The ideal water system for your application depends on your feedwater quality, laboratory applications, volume requirements and budget.

FAQ: Water Purification Systems

What are laboratory water purification systems?

Water purification systems are devices that produce laboratory-grade water of defined quality (Type 1, Type 2, and Type 3) by removing dissolved salts, organic substances, microorganisms, and particles. They are used in analytical, pharmaceutical, and research laboratories where consistent water quality is essential for accurate results.

What is the difference between Type 1, Type 2, and Type 3 laboratory water?

Type 1 (ultrapure water) is used for instrumental analysis (HPLC, GC/GC-MS, ICP, ICP-MS) and molecular biology. Type 2 water is suitable for reagent preparation and general analytical applications, while Type 3 water is intended for rinsing and basic laboratory needs.

How does reverse osmosis work in water purification systems?

Reverse osmosis (RO) removes up to 99% of dissolved salts and organic substances by forcing water under pressure through a semi-permeable membrane, making it a fundamental step in the production of purified and ultrapure water.

Which parameters define ultrapure water quality?

The most important parameters are resistivity (18.2 MΩ·cm for Type 1 water), TOC value (Total Organic Carbon), and the levels of bacteria and particles.

Do water purification systems comply with pharmacopeial requirements?

Yes. Professional laboratory water systems are designed in accordance with USP, Ph. Eur., and other relevant standards for pharmaceutical and industrial applications.

What is the production capacity of laboratory water systems?

Capacity ranges from smaller systems (3-50 L/h) to centralized systems producing over 200 L/h, depending on laboratory needs.

How are water purification systems maintained?

Maintenance includes regular replacement of filters, RO membranes, and deionization cartridges, as well as periodic system sanitization to prevent microbiological contamination.

What is the lifespan of an RO membrane in water purification systems?

The lifespan of an RO membrane depends on the quality of the feed water, system pressure, and regular maintenance. On average, it lasts between 1 and 3 years. Timely replacement and proper pre-filtration extend service life and ensure stable purified water quality.

How important is TOC monitoring in water?

Monitoring TOC is critical in the pharmaceutical industry, in the production of Water for Injection (WFI), and in drinking water applications, as it indicates the presence of organic contamination.

How do you choose the optimal water purification system?

It is necessary to analyze the feed water quality, daily consumption, and method requirements. Professional technical consultation ensures selection of a system that provides stable quality and long-term reliability. Simply send us answers to these three questions, and we will immediately recommend the most suitable system for you.