Vacuum Flanges- KF flanges, ISO flanges, CF flanges

Htc manufacture a comprehensive range of flanges such as KFflangeseriers, ISO flange series, CF flange series, etc. in all standard vacuum flange systems. We manufacture all seriers vacuum flanges in accordance with ISO stanadard so they could be compatible with other manufacturers’ flanges and vacuum fittings.

The typical KF or NW assembly consists of two identical flanges, a center-ring, and an aluminum clamp with a wingnut fastener frequently connent and disconnect without tools.

The construction of ISO flanges series includes two smooth-faced sexless flanges clamped together with a combination metal centering ring and elastomeric O-ring between them.

The high sealing effect and the low leak rates performance of CF flanges connections is a result of gasket material. When assembling the CF Flanges connect, the knife edge is pressed into the flat copper gasket and force the seal material vboth axially as well as radially outwards to the flanges. The material is enclosed and cannot flow even at high bakeout temperature. Due to this deformation of the seal such connections may sometimesstivk together. They can be easily separated with a special tool or screwdriver. 

KF Flanges	CF Flanges	ISO Flanges