KNF Deep Vacuum Pumps for the Industrial Process Industry

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A collection of technical articles on diaphragm pumps

Air and Gas Pumps for Roughing, Backing and Deep Vacuum Applications

Datasheets are available for downloading, viewing and printing in the Acrobat PDF format by clicking on the pump model number below. Information on how to obtain the free Adobe reader is available HERE.

Pump Series (Link to Datasheets)	Available Motors	Flow Rate LPM	Flow Rate CFM	Max Vacuum in. Hg (a)	Max Pressure psig
DATABOOK (PDF:507kb/6pgs) documents the following group of pumps:
UN84.3	AC/DC/BLDC	5	0.18	5 mbar/3.75 Torr	4.5
UN813.3	AC/BLDC	13	0.46	3 mbar/2.25 Torr (a)	15
UN813.4	AC/BLDC	13	0.47	<.5 mbar/.375 Torr (a)	15
UN813.5	AC/BLDC	19	0.7	<1 mbar/.75 Torr (a)	15
N880.3	AC	80	2.82	2 mbar/1.5 Torr	15
N920 (PDF:900kb/1pg) NEW!	AC/DC/BLDC	21	0.74	1.5 mbar/1.125 Torr	Not Rated
N940 (PDF:900kb/1pg) NEW!	AC/DC/BLDC	50	1.8	1.5 mbar/1.125 Torr	7.2
(a) Absolute

The N920 series represents KNF's latest innovation to improve pumping speed at low vacuum levels. It features KNF's diaphragm stabilization system to obtain this low-vacuum flow, and a unique three stage head design using integrated head interconnections, reducing the chance of leaks.
It is available with a universal AC (90-264VAC, 50-60Hz) motor and brushless-DC motor, both with integrated logic speed controls. It is gas tight to 6x10-3 mbar x l/s specifications. Ultimate vacuum is <1.5 mbar. It is available in either OEM or Lab models.

KNF's new N940 series pump also uses our latest design innovations. It features excellent pumping speed at low vacuum levels using KNF's diaphragm stabilization system.
Input power is a universal (90-264VAC, 50-60Hz) brushless-DC motor, or an IP-54 AC motor. Options include an integrated logic speed controls. It is gas tight to 6x10-3 mbar x l/s specifications. Ultimate vacuum is <1.5 mbar. It is available in either OEM or Lab models.

KNF's Model UN813.4ANI pump shown with a logic and speed-controlled, brushless DC motor generates <0.5 mbar (<0.375Torr) of dry, oil-free vacuum using only four heads. Featuring KNF's latest structured diaphragms for deepest vacuum, and multi-port valves that tolerate occasional condensate liquids, these pumps represent our latest innovations.

Unit Conversion Tools:

NOTES: Standard continuous performance ratings listed on this KNF website and on KNF datasheets are based on technical data and test results of nominal units at sea level, measured with an ambient temperature of 70°F (21°C), and nominal electrical supply as listed above, and are for reference only.Multiple-head models, different performance models, cost-effective OEM modifications, and a variety of motor options and different materials of construction are also available. Certified drawings are available upon request. Specifications subject to change without notice. You should always check corrosion resistance charts for compatibility with the medium you intend to pump.

KNF NEUBERGER, INC.
Two Black Forest Road
Trenton, New Jersey 08691-1810
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