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Introduction
Vacuum components are important parts of vacuum technology. These are all components of vacuum equipment which are
necessary for the assembly of vacuum lines, e. g. flanges, seals and tube components (elbows, tees, crosses etc.). Applications in
vacuum technology make high demands on the selection of material as well as the fabrication of these components.
Varied fields of application require different connection standards which are based on different flange systems. Therefore, VACOM
offers vacuum components of all important standards. Our product range covers a vast selection of standard vacuum components.
VACOM also specialises in the manufacture of vacuum components to your precise requirements. Please find more detailed information
in Chapter 2,Vacuum Custom Components and Vacuum Chambers.
Flange systems (KF, ISO, CF)
Three different flange systems or standards are basically used in vacuum technology. The selection of the most suitable system
depends on the respective application. Please find further technical details in the introductions of the subsections. VACOM's flanges
comply with the following standards:
| Flange system |
Small flange |
Clamping flange |
ConFlat® compatible |
| Short term |
KF (ISO-KF) |
ISO (ISO-K, ISO-F) |
CF |
| Nominal diameter |
DN10 to DN50 |
DN63 to DN630 |
DN10 to DN250 |
| Standard |
DIN28403
ISO2861 |
DIN 28404
ISO1609 |
ISO3669 |
| Vacuum range |
up tp HV |
up to HV |
up to UHV |
| Standard seal |
elastomer O-ring |
elastomer O-ring |
Cu gasket |
| Leak rate |
< 1.0E-9 mbar l / s |
< 1.0E-9 mbar l / s |
< 1.0E-11 mbar l / s |
Materials
VACOM vacuum components are made of materials which meet the high demands of vacuum technology. Only stainless steels are
processed for flanges and tubes. In addition we offer KF components of aluminium.
VACOM manufactures flanges of forged stainless steel 316LN ESR for demanding applications, especially in ultra
high vacuum. This electroslag remelted material is characterised by highest purity and homogeneous structure, high
durability and low permeability. The stainless steel 316LN ESR processed by VACOM originates from material
especially produced for VACOM. The specifications respective composition and purity are clearly closer defined by
VACOM than determined by the standard.
Applied stainless steels
| Material no. |
AISI |
ESR |
| 1.4301 |
304 |
- |
| 1.4305 |
303 |
- |
| 1.4307 |
304L |
- |
| 1.4404 / 1.4435 |
316L |
- |
| 1.4429 |
316LN |
yes |
| 1.4541 |
321 |
- |
| 1.4571 |
316Ti |
- |
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