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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Vacuum Component | CF Flange Series Manufacturer - EFT
Based in Taiwan, EVERFIT TECHNOLOGY CO., LTD. is a stainless steel vacuum component supplier for various industries, including semi-conductor, pharmaceutical, bio-technology, cosmetics, food processing and structural engineering. Main product: 316Ti Stainless steel pipe, progressing cavity pump part, pipe tee fitting, valve actuator component, diaphragm valve, ferrule, KF flange, etc.
5,500 square meter plant, cleanroom (class 10,000) and ultra-pure water system to deliver the cleanest pipe fittings. Between the robot arm and adjustment of fixture and jig, EFT is moving toward to becoming a manufacturer of pipe fittings with high technology.
EFT has been offering customers high-quality stainless steel vacuum components since 1976, both with advanced technology and 39 years of experience, EFT ensures each customer's demands are met.