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Pumps for your rotary evaporator and distillerPumps for filtration and degassing apparatusPumps for gel dryers and vacuum ovensComplete KNF Vacuum SystemsVacuum Controller to prevent bumping and foamingStainless Steel pumps for pressure, and legacy pumpsLiquid pumps for the laboratoryLABOPORT Pumps
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Select the pump desired
and click on the links below
to order directly from VWR.

Pumps and Vacuum Systems for Rotary Evaporation and Distilling

Stand-alone pump, model UN842.3FTP

Complete vacuum system, model USC820

Distillation of high boiling point solvents(>110 deg. C)  Chlorobenzene, DMF, DMSO, isoamyl alcohol, xylene
Click VWR Cat. No.
to order Pump
Flow Rate End Vacuum Stages Materials
26678-020
N842.3FTP
34 1.5 Torr (29.86"Hg) 2 Teflon®/Kalrez®

To order above pump complete with KNF Vacuum Pump Controller and stand, KNF USC842,
Use Cat. No. 26678-046

Reflux reactions/distillation of high boiling point solvents (80-110 deg. C)  Water, heptane, isobutyl alcohol, toluene
26678-020
N842.3FTP
34 1.5 Torr (29.86"Hg) 2 Teflon®/Kalrez®

To order above pump complete with KNF Vacuum Pump Controller and stand, KNF USC842,
Use Cat. No. 26678-046

26678-016
N840.3FTP
34 6 Torr (29.7"Hg) 2 Teflon®/Kalrez®
To order above pump complete with KNF Vacuum Pump Controller and stand, KNF USC840,
Use Cat. No. 26678-044
Distillation of medium boiling point solvents (60-80 deg. C)  Acetonitrile, benzene, chloroform, ethanol, ethyl acetate, hexane, methanol
26678-012
N820.3FTP
20 6 Torr (29.7"Hg) 2 Teflon®/Kalrez®
To order above pump complete with KNF Vacuum Pump Controller and stand, KNF USC820,
Use Cat. No. 26678-042
26678-016
N840.3FTP
34 6 Torr (29.7"Hg) 2 Teflon®/Kalrez®
To order above pump complete with KNF Vacuum Pump Controller and stand, KNF PU844, u
Use Cat. No. 26678-044
Distillation of low boiling point solvents (35-60 deg. C)  Acetone, methylene chloride, pentane
26678-012
N820.3FTP
20 6 Torr (29.7"Hg) 2 Teflon®/Kalrez®
To order above pump complete with KNF Vacuum Pump Controller and stand, KNF USC820, u
Use Cat. No. 26678-042
26678-004
N840FTP
34 75 Torr (27"Hg) 1 Teflon®/Kalrez®
Vacuum Pump Controller
Vacuum Pump Controller

KNF Vacuum Pump Controller Model UNC800 (formerly PU842) less pump and stand - Order Cat. No. 26678-040

Pumps for Filtration, Degassing, Concentration

Click VWR No.
to order
26678-028
N86KTP
26678-032
N811KVP
26678-000
N820FTP
26678-004
N840FTP
26678-024
N840.1.2FTP
26678-020
N842.3FTP
Flow Rate 5.5 lpm 11.5 lpm 20 lpm 34 lpm 65 lpm 34 lpm
End Vacuum 120 Torr 218 Torr 75 Torr 75 Torr 75 Torr 1.5 Torr
Gel Drying* - - X X - -
De-Gassing X X - X X X
Concentration* - - - X - -
Pump Selection Guide for Filtration
BOTTLETOP FILTRATION UNITS: For sterilizing tissue culture media, microbiological media, and other biological solutions.
DISPOSABLE FILTRATION ASSEMBLIES: For sterilizing tissue culture media, microbiological media, and other biological solutions.
Click on
VWR Cat. No.
to order.
Flow Rate End Vacuum Regulator/Gauge Pkg
14224-118
N86KT.45P
5.5 LPM 120 Torr (25.2"Hg) Vacuum

26678-028
N86KTP

5.5 LPM 120 Torr (25.2"Hg) None
26678-052
N811KV.45P
13 LPM 75 Torr (27"Hg) Vacuum
14224-116
N811KVP
13 LPM 75 Torr (27"Hg) None
MANIFOLD FILTRATION: For multiple sample (3 and 6 place) sterility testing of antibiotics and pharmaceuticals by bacteria retentive method and for routine microbiological filtrations. Because of the potentially large volumes of liquid used with vacuum manifolds, a liquid pre-trap is recommended.
Pump Model Flow Rate End Vacuum Regulator/Gauge Pkg
82004-044
N816.1.2KT.45P
30 LPM 120 (25.2"Hg) Vacuum
82004-042
N816.1.2KTP
30 LPM 120 Torr (25.2"Hg) None
GLASS FILTRATION ASSEMBLIES: For filtration of aqueous, organic or corrosive liquids for particulate contamination analysis and for HPLC solvent filtration.
Pump Model Flow Rate End Vacuum Regulator/Gauge Pkg
26678-052
N811KV.45P
13 LPM 75 Torr (27"Hg) Vacuum
14224-116
N811KVP
13 LPM 75 Torr (27"Hg) None
82004-044
N816.1.2KT.45P
30 LPM 120 Torr (25.2"Hg) Vacuum
82004-042
N816.1.2KTP
30 LPM 120 Torr (25.2"Hg) None
SOLVENT FILTRATION & DEGASSING: For transferring solvents directly from the reagent bottle while removing particulate from HPLC mobile phase. Once the filtration is complete, the sample can then be degassed in the same vessel.
Pump Model Flow Rate End Vacuum Regulator/Gauge Pkg
82004-040
N816.3KT.45P
16 LPM 15 Torr (29.3"Hg) Vacuum
82004-054
N816.3KTP
16 LPM 15 Torr (29.3"Hg) None
DESICCATION: For use in the removal of moisture in a sample preparation step or as an anaerobic culture jar in bacteriological work.
Pump Model Flow Rate End Vacuum Regulator/Gauge Pkg
82004-040
N816.3KT.45P
16 LPM 15 Torr (29.3"Hg) Vacuum
82004-054
N816.3KTP
16 LPM 15 Torr (29.3"Hg) None

PRESSURE FILTRATION PUMPS

Pump Model Flow Rate Max Pressure Regulator/Gauge Pkg
26678-050
N86KT.46P
5.5 LPM 35 psig Pressure
26678-050
N86KTP
5.5 LPM 35 psig None
14224-120
N811KT.46P
11.5 LPM 30 psig Pressure
26678-052
N811KVP
11.5 LPM 30 psig None

Powerdry pumps

Continuous Self-Cleaning Pumps for Saturated Vapors

A new, patent-pending self-cleaning diaphragm pump designed specifically to reduce process time for vacuum ovens, vacuum concentrators and even rotory evaporators.
Unlike other self-cleaning pumps that cycle at the end of the vacuum process, KNF's PowerDry operates throughout the process, when you need it most.

Click VWR Cat. No.
to order

Wetted Material Flow Rate Vacuum Pressure
46620-630
N820.3FT.40P
Two Stage PowerDry
PTFE/FFPM 20 LPM 7.5 Torr 15 psig
46620-632
N840.3FT.40P
Two Stage PowerDry
PTFE/FFPM 34 LPM 7.5 Torr 15 psig
46620-636
N842.3FT.40P
Two Stage PowerDry
PTFE/FFPM 34 LPM 3 Torr 15 psig
46620-634
N860.3FT.40P
Two Stage PowerDry
PTFE/FFPM 60 LPM 3 Torr 15 psig

VWR SCIENTIFIC PRODUCTS
1310 Goshen Parkway
West Chester, PA 19380
800/932-5000

VWR CANLAB
9519 49th Street
Edmonton, Alberta T6B 2L8
800/932-5000

VWR CANLAB
2360 Argentia Road
Mississauga, Ontario L5N 5Z7
800/932-5000

VWR CANLAB
8567 Chemin Dalton
Ville Mont-Royal, Quebec H4T 1V5
800/932-5000

Unit Conversion Tools: Chemical Resistance Chart: Chemical Resistance Chart

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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
609-890-8600 • Fax 609-890-8323 • site map