• CF Flange Series and stainless steel vacuum components

CF Flange Series and vacuum component supplier for processing equipment solutions

Semi-conductor, pharmaceutical, Bio-technology, food processing, structural engineering

Everfit Technology CO., LTD. (EFT) is one of the stainless steel pipe fittings manufacturers based in Taiwan with over 36 years of experience. EFT provides 316, 316Ti stainless steel pipe fittings, pipe reducer, eccentric pipe reducer, vacuum pump, valve actuator - ISO, EN11435, DNV, TSSA CRN, BPE, 3-A SSI certified.

Home » Category » CF Flange Series and vacuum component supplier for processing equipment solutions

CF Flange Series

CF Flange Series
CF Flange Series

The generation of ultra high vacuum (UHV) makes great demands on the material and connections. Therefore the CF standard was created in the UHV technology (ISO 3669; enhancement ISO/TS 3669-2).
CF flanges are manufactured from circular blanks of stainless steel on CNC machines. Rotatable flanges are bipartite and consist of an inner part with the seal face and an outer part with the bolt holes.
CF flanges have an annular groove on the vacuum side for the reception of the gasket and a knife-edge.
EFT provides CF flanges and components of the dimensions DN10 to DN250 according to the pre-norm ISO/TS 3669-2. Please consider that individual standards of institutions are also available in the market. Please add the auxiliary dimensions
(DN25, DN50, DN75, DN125) in case of requests and offers of CF flanges and components. In addition please add the size and the number of required bolts and the necessary copper gasket for dimensions from DN250.

EFT follows the widely used convention of categorising different sizes of UHV flange by using a ‘DN’ specification.‘DN’ is the acronym of the French term ‘Diamètre nominal’ which translates as ‘Nominal bore’. The bore referred to is that of the tube that fits inside the designated flange. The bore is ‘nominal’because of the variation in tube wall thickness.

 

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