Diaphragm Vacuum Pumps Handle Air And Gases.
KNF Type N838 diaphragm vacuum pumps are offered in single- and multi-stage OEM installation models powered by AC, DC, or brushless DC (BLDC) motors. Their exclusive and patented multi-port valve system and structured molded diaphragm contribute to high performance, increased flow and efficiency, and reliability in service.
The pumps can satisfy a wide range of high-capacity applications, including medical therapeutic devices and diagnostic equipment, ideal for both suction and positive pressure devices. Their closed and durable compressor housing is designed to minimize noise (and an optional silencer can be specified for applications requiring extremely quiet operation).
These N838 pumps exhibit high pneumatic capacity and can achieve flow rates up to 42 LPM per head under atmospheric conditions, ultimate vacuum of 100 mbar abs. (27 in. Hg), and maximum continuous pressure of 7 psig. The pumps operate oil-free to retain purity of the pumped medium.
Their patented multi-port valve system integrates a circular valve disk spanning several smaller holes (instead of one large hole) to minimize deformation from stress, resist damage from condensate, and promote enhanced flow and increased efficiency. The design of the patented FEA-designed structured molded diaphragm eliminates the metal clamping disk that can become a source for leakage or corrosion in conventional pump models.
Modular pump design offers OEMs the versatility to choose from a wide variety of standard materials, performances, voltages, frequencies, and accessories (including noise and dust filters, hose connectors, and shock mounts) to meet particular application demands.
Swing-Piston Pump Comes In Compressor Or Vacuum Pump Models
KNF announced its newest addition to its OEM swing-piston pump line, the NPK04. The NPK04 is ideal for use as a transfer pump, is available in compressor or vacuum pump models and can be operated in any position. Its sealed, swing piston moves media oil-free and without adding contamination. Despite its size, it features 3.3 liters per minute of free flow, and is available in an optimized version for vacuum (max. 21.6 in. Hg) or pressure (max 31 psig) generation. Two motor options include standard DC or an economical brushless-dc motor.
The BLDC model is only 2.5 in. long, is available with optional logic speed control interface and features low EMI/RFI. The pump is maintenance-free, very quiet, and exhibits low vibration, low current and power consumption, making it ideal for mobile, battery-powered applications. All standard KNF pumps can be customized to meet specific OEM performance requirements. It is suitable for use in medical and analytical instruments, ink-jet printers, and pneumatic supply functions for prosthetic devices and ergonomic furniture.
Diaphragm Vacuum Pump Is Compact & Cool-Running
KNF N860 Series diaphragm vacuum pumps introduced solutions to sample, transfer, or evacuate air and gases. These compact and cool-running pumps have a patented structured diaphragm promoting optimized pneumatic performance and long service life. The pumps can suit a wide variety of process, laboratory, or OEM applications ranging from large-scale rotary evaporators and continuous/manifold filtration systems to process control sampling. Customization capabilities expand their application potential to many other areas.
These pumps feature as standard specially engineered multi-port valves to tolerate condensation without damage, perform oil-free transfer with uncontaminated flow and minimal maintenance, and run quietly with low vibration. They can achieve enhanced gas tightness with leak rates as low as 6 x 10-3 mbar L/s, deep vacuum potential of 2 mbar, and flows as high as 110 L/min.
Their modular design and available options enable easy customization to tailor pump to application. Pumps can be equipped with standard AC motors or explosion-proof AC versions for compliance with Class 1, Division 1, Groups C & D hazardous locations. Single- or doubled-headed pump options can also be specified. Wetted material choices range from economical aluminum heads and EPDM diaphragms to solid glass-filled PTFE heads and PTFE diaphragms, which offer higher resistance to corrosion and chemicals.
All N860 Series pumps are engineered to start reliably against vacuum, mount and operate in any installed position, and can be easily serviced in the field.
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 ΒΌ-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
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