Maintenance-Free Maestro ULTRA Piston Pump Can Increase Test Accuracy and Instrument Reliability

BioChem is Improving the Reliability of Life Science Instruments, and the Maestro ULTRA Piston Pump is just one example of how they embody this mission.

Maestro ULTRA

Sodium hydroxide and other salt solutions are often a fundamental part of life science instruments. They can be used as a part of the wash cycle that cleans the machine between samples or as buffer solutions to reduce the risk of sample cross-contamination. Salt solutions help to ensure your machine provides accurate and reliable test results.

However, these vital solutions can be hard on an instrument’s fluidics systems, and they are especially challenging for dispense pumps. Throughout the lifetime of a pump, salt builds up on the pump’s piston. This slowly erodes the seal until a catastrophic leak occurs. Your customer’s testing is now halted until a service technician can come and replace the pump.

The common industry solution to this problem is a flushed seal pump. Flushed seal pumps add a secondary fluid chamber and seal to the pump as a way of keeping salt from drying on the piston. However this design introduces many challenges and risks for instrument manufacturers. A second pump system is required to circulate the wash fluid, and the pump dimensions must increase to make room for the secondary fluid chamber. This system also makes leaks harder to detect – a leak of the main seal would lead to sample contamination by the wash fluid rather than pump failure. Cross-contamination risks increase exponentially when flushed seal pumps are strung together in parallel, endangering the reliability and accuracy of test results.

BioChem created a unique piston pump to solve these problems.

The Maestro ULTRA piston pump eliminates the need for maintenance in instruments and applications using salt solutions. Like the original Maestro Piston Pump, machined critical components allow for tighter tolerance control, resulting in improved accuracy, precision, and pump life. The ULTRA has been engineered to last in salty environments, featuring a new, super-hydrophobic piston material which keeps fluid and salt from adhering to the piston. The accuracy and precision BioChem’s Maestro line of piston pumps helps to ensure your instrument provides the most accurate test results. With Maestro ULTRA your instrument can withstand your customers’ harshest solutions so they experience less down time due to maintenance and can spend more time saving lives.

ULTRA is truly the pump that conquers salt. You can find out more about the Maestro ULTRA by reading its white paper and visiting

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BioChem Fluidics Electric Rotary Valve Designed for Aggressive Fluids

Stepper motor driven valve provides inert Teflon fluid path
Boonton, NJ (September 8, 2016) – The Electric Rotary Valve from BioChem Fluidics is ideal for designers of analytical and laboratory devices to complete sample collection, loop injection or flow path selection applications. The valve is specifically designed to work with aggressive or reactive fluids.

BioChem Fluidics Electric Rotary Valve

BioChem Fluidics Electric Rotary Valve specifically designed to work with aggressive or reactive fluids

Fluid entering the valve follows an inert flow path achieved by aligning orifices in a CTFE rotor and a PTFE body, precision fit together to ensure a tightly sealed interface. Motion is provided by an optional stepper motor. An optoelectronic position sensor inside the valve provides the rotor’s position to the valve’s control circuit.

The ERV has a chemically resistant, Teflon fluid path that is free of any metal parts. The resistance of the Teflon body to particulate and chemical adhesion reduces the frequency of valve seizure after instrument downtime.

The valve is available in a number of flow configurations that match most common applications. Standard ¼”-28 UNF fluid port connections with stainless steel threaded inserts, and NEMA 17 stepper motors allow easy integration into sophisticated systems. Since BioChem Fluidics machines the fluid path and valve body internally, the ERV can be customized upon request.

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New Bio-Chem Fluidics Piston Pump Doubles Lifetime of Traditional Pumps

Maestro pump capable of 10 million cycles with up to 99.5 percent accuracy

Boonton, NJ (June 15, 2016) – The new Maestro piston pump from Bio-Chem Fluidics delivers the longest life and best accuracy of any other pump in its category. The pump is capable of 10 million cycles with clean fluids, and 5 million cycles with aggressive or precipitating fluids.

BIO Maestro BLOG

Some piston pumps, used in fluidics systems when the dispense accuracy of a diaphragm pump or peristaltic pump is insufficient, can be prone to failure. Typically found in IVD and similar low pressure applications, piston pumps generally depend upon a flushed seal chamber to maintain the piston in a wetted environment. Pump failure happens when the seal fails, which historically occurs between 3 to 5 million cycles when working with clean fluids, even less with aggressive fluids.

The cost-effective Maestro piston pump uses an improved design with high tolerance components to deliver an extended lifetime. Rigorous testing has validated the pump’s performance at twice that of similar pumps.

Maestro is capable of moving between 500nL to 5000µL of liquids with up to 99.5 percent accuracy. The pump integrates easily with existing instruments, featuring drop-in replacement with no custom software required to drive Maestro stepper motors.

Maestro also offers a variety of features, such as PEEK piston construction, and can be customized to meet specific application needs.

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