KNF Diaphragm Dosing Pumps for Liquids

New KNF diaphragm dosing pumps for liquids (Types FEM 1.02 and FEM 1.09) introduce ideal solutions delivering superior accuracy and repeatability over a long service life. These compact pumps integrate simple 2-phase stepper motors engineered for optimized levels of controllability and cost efficiency. An optional and adaptable control module easily integrated into any system can expand control potential to suit particular application requirements.

Typical applications include medical diagnostics, industrial dosing systems, fuel cells, semiconductor processing, and wafer analysis, among others.

The FEM 1.02 pump achieves flow rates from 0.2 ml/min to 20 ml/min and FEM 1.09 pump from 0.9 ml/min to 90 ml/min. Both versions are small (62mm x 75mm x 63mm), cover a wide dosing range (1:100), operate oil-free with virtually no maintenance, and can serve reliably for more than 10,000 hours.

Among other features, these pumps are self-priming to 8.5 in.Hg, demonstrate consistency over time (1% repeatability), and exhibit excellent leak-tightness and chemical resistance. An innovative valve system minimizes head volume by ensuring that air cannot collect inside the pump head. Depending on pump version, head materials include polypropylene (PP) or PVDF and internal elastomeric components are manufactured from EPDM, FFPM, and PTFE. Pumps are both easy to operate and to adjust. Ports are available in UNF ¼-28 or compression fittings.

Modular pump design offers OEMs the versatility to choose from a wide variety of standard materials, voltages, frequencies, accessories, and options to satisfy application demands.

KNF Neuberger, Inc.
www.knfOEM.com

Micro Gas-sampling Pump from KNF Neuberger

A new KNF micro diaphragm gas-sampling pump (Type NMP015.1.2) uniquely integrates head connections inside the housing for improved pneumatic performance in a compact and leak-tight package. This optimized design produces less pulsation and additionally allows for the housing to be closed and sealed for significant reduction in audible noise.

The pump ideally suits portable, battery-operated equipment used in a wide range of OEM applications, including gas sampling, explosives detection devices, anesthesia systems, and medical analyzers, among others.

Among features, the pump’s elastomeric diaphragm promotes high efficiency and delivers oil-free operation without any risk of contaminating the sampled gas. Pumps can be specified either with an ironless core DC motor or with a brushless DC motor offering longer service life. PEEK housings and pump heads contribute high stiffness and temperature and chemical resistance.

Depending on model, these pumps can achieve flow rates to 2.1 l/m, vacuum to 650 mbar (11 in. Hg) absolute, and continuous pressure to 0.6 bar g (9 psig). All are engineered to perform maintenance-free with low power requirements and are supplied ready for installation to operate in any position.

Chemically resistant versions are available and pumps can otherwise be customized to meet particular application demands.

KNF Neuberger, Inc.
www.knfOEM.com