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.
Blank Stubs
Blank Stub, KF 25 (NW 25), Brass
New Blank Stub, KF 25 (NW 25), Brass
$13.29 $13.56




NW/KF40 Aluminum Flange Clamp + Centering O-rings with Fluorine Rubber
Wholesale 2.1" Bored Blank Flange, Stainless Steel, KF50 (NW50)
Wholesale 0.75" Bored Blank Flange, Stainless Steel, KF 16 (NW 16)
Vacuum Tee, Standard KF 40 (NW 40), Stainless Steel
Wholesale 1" Bored Blank Flange, Stainless Steel, KF25 (NW25)
Bored Bolted Flange, ISO 400, Stainless Steel
Wholesale Blank Off Flange, KF50 (NW 50), Stainless Steel
Single Claw Clamp, ISO 160 - 250, Stainless Steel
NEW Pfeiffer DCU 110 Display Control Unit with integrated Power Supply 24VDC PM C01 820
Wholesale 3" Bored Blank Flange, Stainless Steel, KF80 (NW80)
Double Claw Clamp, ISO 63 - 100, Aluminum
Quality Precision Coin Cell Punching Machine
Oerlikon Leybold Remote Start/Stop Switch for Turbo.Drive 400 and Turbo.Controller 300. PN: 15248
Oerlikon Leybold Sogevac SV25B Single Stage Rotary Vane Vacuum Pump, Worldwide Motor, PN: 960251
Wholesale Blank Off Flange, KF16 (NW 16), Stainless Steel
Bored Flange - Rotatable - Tapped Bolt Holes, CF 63 (450), 63.7 mm Opening, Stainless Steel
Wholesale 2.5" Bored Blank Flange, Stainless Steel, KF63 (NW63)
Wholesale 4" Bored Blank Flange, Stainless Steel, KF100 (NW100)
Blank Stub, KF 40 (NW 40), Brass
Pfeiffer HiPace 300, 400, 700, 1200 Turbo Pump Venting Flange, DN-16, G 1/8 in., w/ seal. PM016780-T
Blank Off Flange - NonRotatable, CF 150 (800), Stainless Steel
NEW Micromeritics Edwards 0.7 E2M0.7 Rotary Vane Dual Stage Mechanical Vacuum Pump, 230 VAC 1 ph, PN: A37142919
Blank Stub, KF 40 (NW 40), (304L) Stainless Steel 




