Pfeiffer Vacuum DUO 3 Dual Stage Rotary Vane Vacuum Pump. PN PKD57 711 C
1 × $2,294.25 
NEW Pfeiffer TC 110 Electronic Drive Unit PMC01790AT
1 × $1,663.70 
Blank Stub, KF 50 (NW 50), (304L) Stainless Steel
2 × $30.99 Subtotal: $4,019.93
%20Stub%20End,%20%20ISO-KF%20NW%20Flange,%20Stainless%20Steel681.jpg "Stub Blank KF-25 Vacuum Fittings, 1.0 in (25.4 mm) Stub End, ISO-KF NW Flange, Stainless Steel681"){kind=spacer}
%20Stub%20End,%20%20ISO-KF%20NW%20Flange,%20Stainless%20Steel682.jpg "Stub Blank KF-25 Vacuum Fittings, 1.0 in (25.4 mm) Stub End, ISO-KF NW Flange, Stainless Steel682"){kind=spacer}
%20Stub%20End,%20%20ISO-KF%20NW%20Flange,%20Stainless%20Steel683.jpg "Stub Blank KF-25 Vacuum Fittings, 1.0 in (25.4 mm) Stub End, ISO-KF NW Flange, Stainless Steel683"){kind=spacer}
$13.25 $13.95
Height: 0.75″
304L Stainless Steel
The Blank Stubs are available in the following sizes: NW 10, NW 16, NW 25, NW 40, NW 50.
The Blank Stubs are available in Stainless Steel or Brass.
KF (also referred to as NW) assemblies consist of two Flanges, a Center-Ring and an aluminum Clamp. Clamps are assembled with wing nuts to insure ease of use over time without tools. A uniform application of pressure on the clamp insures a vacuum seal. The mating flange surfaces compress the O-Ring, which is held in place by a metal centering ring, to generate the vacuum seal.
