The KF - Swagelok Adapters model no.EV04076 are available in the KF size 40 having dimensions 55,10.8,54.3 respectively and swagelok size 1/2"and is composed of 304 stainless steel material.
The assembly consist of two Flanges, a Center-Ring and an aluminum Clamp. Clamps are combined with wing nuts for effective over time usage without tools. A constant supply of pressure on the clamp develops a vacuum seal. The mating flange surfaces compress the O-Ring, which is fixed in place by a metal centering ring, to produce the vacuum seal.