Slimline valves achieves rapid response

Paul Boughton

Burkert claims that its new type 6650 valve provides the highest fluid control performance in the smallest possible space, setting a new standard for miniature solenoid valves employed in clinical, life science, analytical and fluid handling applications.

Suitable for use on vacuum up to 7bar pressure, and providing medium isolation for aggressive fluids, the direct-acting type 6650 valve is just 4.5mm wide yet is said to outperform comparable 10mm and 16mm designs. The type 6650 is suitable for manufacturers with valve applications requiring fast response times, high reproducibility, zero pumping and excellent flushing characteristics. The valve's optimised design ensures reproducible and precise dosing, effective rinsing capability, and is suitable for use with aggressive chemicals.

Key to the performance of the type 6650 valve is Burkert's patented Flipper technology. This employs an elastomer element that moves between two opposite valve seats under the force of permanent magnets fixed to the flipper element; opening one as it closes the other. This operation requires only a temporary pulse, so is characterised by a short response time. It also provides benefits in terms of high reliability and very low levels of wear.

With the two nominal sizes 0.4mm and 0.8mm available, and both 2/2 and 3/2 functionality, the type 6650 is suitable for applications where high performance is required in a small space - in dosing, for example, where the type 6650 opens up new possibilities, in particular, in connection with 384-well Microtitre plates.

The type 6650 is the latest addition to Burkert's Microfluidic range of products for analytical, medical and biotechnical applications. The range includes miniature solenoid valves and micropumps for applications with neutral, aggressive and highly purified media. These products are extremely proficient in the handling of fluids where dead legs, internal volume, chemical resistance and precision are paramount.

For more information, visit www.burkert.com