Compare Model Drawings, CAD & Specs Flange Size Mechanism Availability Price
Wing Nut Flange Clamp, NW16 Size ISO-KF Vacuum Flange, Aluminum
$6.90
In Stock
NW16 Wing Nut
In Stock
Wing Nut Flange Clamp, NW25 Size ISO-KF Vacuum Flange, Aluminum
$9.20
In Stock
NW25 Wing Nut
In Stock
Wing Nut Flange Clamp, NW40 Size ISO-KF Vacuum Flange, Aluminum
$10.30
In Stock
NW40 Wing Nut
In Stock
Wing Nut Flange Clamp, NW50 Size ISO-KF Vacuum Flange, Aluminum
$17.40
In Stock
NW50 Wing Nut
In Stock
Toggle Flange Clamp, NW16 Size ISO-KF Vacuum Flange, Aluminum
$15.40
In Stock
NW16 Toggle
In Stock
Toggle Flange Clamp, Lanyard, NW16 Size ISO-KF Vacuum Flange, Aluminum
$17.70
In Stock
NW16 Toggle with Lanyard
In Stock
Toggle Flange Clamp, NW25 Size ISO-KF Vacuum Flange, Aluminum
$17.90
In Stock
NW25 Toggle
In Stock
Toggle Flange Clamp, Lanyard, NW25 Size ISO-KF Vacuum Flange, Aluminum
$20.20
In Stock
NW25 Toggle with Lanyard
In Stock
Toggle Flange Clamp, NW40 Size ISO-KF Vacuum Flange, Aluminum
$19.20
In Stock
NW40 Toggle
In Stock
Toggle Flange Clamp, Lanyard, NW40 Size ISO-KF Vacuum Flange, Aluminum
$21.60
In Stock
NW40 Toggle with Lanyard
In Stock
Toggle Flange Clamp, NW50 Size ISO-KF Vacuum Flange, Aluminum
$21.80
In Stock
NW50 Toggle
In Stock
Toggle Flange Clamp, Lanyard, NW50 Size ISO-KF Vacuum Flange, Aluminum
$24.10
In Stock
NW50 Toggle with Lanyard
In Stock
Bulkhead Flange Clamp, NW16 Size ISO-KF Flange, 6 Bolts, Aluminum
$20.50
In Stock
NW16 Bulkhead
In Stock
Bulkhead Flange Clamp, NW25 Size ISO-KF Flange, 6 Bolts, Aluminum
$23.70
In Stock
NW25 Bulkhead
In Stock
Bulkhead Flange Clamp, NW40 Size ISO-KF Flange, 6 Bolts, Aluminum
$29
In Stock
NW40 Bulkhead
In Stock
Bulkhead Flange Clamp, NW50 Size ISO-KF Flange, 8 Bolts, Aluminum
$34
In Stock
NW50 Bulkhead
In Stock

Specifications

  • Component Type
    Flange Clamp
  • Series
    Series 31
  • Material
    Aluminum
  • Flange Type
    ISO-KF

Features

ISO-KF Vacuum Flange Standard Dimensions

inch (mm)

The International Standards Organization has defined the interface dimensions of ISO-KF vacuum flanges allowing the interchanging of components that conform to the ISO-KF standard. The ISO-KF flange system provides is a modular building block method for creating a vacuum systems. Since component dimensions are standardized, elbows, tees, crosses or valves for a given flange size can be interchanged. The flanges are sexless and the seal is symmetrical allowing components to be rotated. By using ISO-KF standard components, vacuum system assembly is quick and cost effective.

Joining ISO-KF Vacuum Flanges

ISO-KF vacuum flange components are joined by inserting a centering ring seal between the two flange faces, then securing the assembly with a flange encompassing clamp. There are a variety of flange clamp choices available. The wing-nut flange clamp is hand tightened until metal contact is felt. The toggle flange clamp is convenient and easy to use and provides enough sealing force to fully compress the O-Ring, so that the flanges and the centering ring are metal to metal. The self-adjusting clamp locks in a positive method making it ideal when clamp must be removed frequently, like leak testing or gauge calibration. Bulkhead flange clamps attach an ISO-KF flange directly to a chamber or base plate. The two-part, bolted clamp fits over the flange with a centering ring assembly used between the flange and the opening.