21 Pumps, Valves & Liquid Handling Vacuum fi ltration systems and piston pumps


Streamline and elevate your laboratory’s filtration procedures with Wiggens vacuum filtration systems, engineered to enhance efficiency, speed, safety, and precision across a wide range of applications.


From suspended solids measurement to HPLC, gas chromatography, AA micro-analysis, mobile phase decontamination, and applications in the food and beverage industry and pharmaceuticals, filtration stands as a crucial step in chemical and life science research. Wiggens proudly presents an extensive line-up of filtration devices designed to simplify filtration processes, ensuring cost-effectiveness and straightforward solutions for researchers and laboratories alike.


At the heart of Wiggens’ offerings lies the V series vacuum pump, a piston-powered, oil-free pump combining electronic and mechanical innovation. Compact, lightweight, and maintenance-free, this pump prioritises user experience, offering a clean, safe, and user-friendly design that seamlessly integrates with any filtration system.


Explore Wiggens’ comprehensive range of vacuum filtration systems, including: All-in-one filtration systems; Filtration collocations; Multi-position filtration manifolds; Customisable filtration system assembly options; Oil-free piston vacuum pumps; Accessories for filtration systems.


Facing a high sample workload? Wiggens’ filtration solutions are designed to reduce your workload, saving valuable time, effort, and resources while optimising your laboratory processes and minimising waste. Experience the difference with Wiggens vacuum filtration systems today.


More information online: ilmt.co/PL/1AzE 62297pr@reply-direct.com


Precise solutions for low fl ow liquid measurement


Low-flow measurement is increasingly prevalent across various industries. Yet, as flow rates decrease, the task of controlling and measuring them becomes progressively more challenging. This poses a significant obstacle for users and flow sensor manufacturers alike in their search for cost-effective and reliable flow measuring technologies.


While there isn’t a standardized definition for ‘low flow’ concerning fluidics handling, these applications face distinct challenges compared to larger flows. The minimal volume of liquid involved makes low-flow systems highly sensitive, amplifying concerns about flow stability and performance. Even minor disruptions in process or environmental conditions can significantly affect flow stability in low-flow scenarios.


In the markets where Titan Enterprises operates, low flow rates are considered to be those below 50 ml/min, with many customers seeking flow rates ranging from 2 to 20 ml/min.


Neil Hannay, Senior R&D Engineer at Titan Enterprises, noted: “We are observing a significant rise in the demand for low flow measurement technologies, fuelled by various industries shifting towards transporting highly concentrated liquids that are later diluted at the point of use. This transition results in substantial savings on transportation and storage expenses, while also yielding positive environmental benefits.”


From cleaning fluid additives to beer or soda syrups and flavourings, chemical additives for oil and fuel, paint pigments, or drug administration, the use of low-flow flowmeters is essential. They ensure precise dosing of these concentrated fluids at the end of the process, facilitating accurate dispensing for the correct dilution.


As mentioned, measuring low flow presents a challenging application to address. The energy available in low liquid flow is often inadequate to drive most mechanical flowmeters to provide linear results. Electronic flow meters, on the other hand, may face limitations such as sensitivity, zero drift, and slow response times. This analysis covers five types of flow meter - Ultrasonic, Turbine, Oval Gear, Thermal, and Coriolis - and assesses their suitability for low flow measurement.


Selecting the most appropriate high-precision flow sensor for your application is crucial, as flowmeters can often be the most constraining element of a low flow fluidic system.


Neil stated: “We recognise a robust market demand for low flow meters, and we are presently collaborating with two international OEMs to devise a solution for measuring ultra-low flows leveraging our oval gear technology and miniaturised gears.”


More information online: ilmt.co/PL/92R6 and ilmt.co/PL/Qm7X 62331pr@reply-direct.com


New 15 mm proportional valve


The 15 mm proportional valve by Kendrion is versatile and features optimal control characteristics, combining both - an unseen performance with an even higher commercial benefit.


Kendrion has expanded the 68 series with the 15 mm proportional valve. During the production of the new valve, special attention was paid to the sliding properties of the armature, which were implemented with the help of high-tech materials and an optimised internal design. The scalable nominal orifice from 1.3 mm to 2.5 mm enables a wide range of applications for controlling and regulating gaseous media such as inert gases or medical oxygen. In addition, the 15 mm proportional solenoid valve benefits from the cost-effective, compact and long-proven design of the 68 series, which is characterised by energy-efficient and quiet control.


By means of optional control electronics, various application states can be implemented quickly and easily, be it open-loop or closed-loop operation. In the latter, the valve is controlled with a PWM signal while flow sensor or differential pressure signals serve as control parameters for the proportional valve, thus enabling very precise and reliable control.


More information online: ilmt.co/PL/e3Ly 62969pr@reply-direct.com


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