CF fixed welding flange

Provide from CF16 to CF500 specifications of the flange and pipe fittings. Processing and manufacturing, in strict accordance with ISO and GB standards can be compatible with other manufacturers of products used.

CF flange of the available materials have SUS304, 304 l, 304 the ESR, 316 l and 316 ln the ESR.

Using oxygen free copper gasket seal, effective vacuum degree can reach 1 x - 11 mbar. Temperature - 200 ° C to 450 ° C. Use the gasket is not recommended

Available from CF flange to KF or ISO flange of the complete transfer, in order to transition from ultra high vacuum to high vacuum.

Range of vacuum

Oxygen-free copper seal 1 x10-13

Elastomer seal 1 x10 8

Temperature range

Oxygen-free copper seal: - 200 ° C to 450 ° C

Elastomer seal: - 20 ° C to 150 ° C

Elastic intermittent use: - 20 ° C to 200 ° C

Size range

Flange dimensions: CF16 ~ CF500

CF flange and reliable sealing performance is due to the unique shape seal design "edge". When two CF flange by compression between blade edge flat oxygen-free copper gaskets, gasket material horizontal cold flow happens. The cold flow by with the vertical flange sealing blade edge concentric walls or vent groove. Further restrictions on the material flow from seal area, and generate a high interface stress. These pressures cause gasket material filling small surface defects, and produces highly reliable seal. At high temperatures, despite the soft gasket, blade geometry is still can keep the ultra high vacuum. CF flange can be oven to 450 ° C, cooled to 200 ° C, suitable for 1 x10-13 Torr vacuum level. To meet the strict requirements of ultra high vacuum environment, and to maintain the seal integrity through high temperature deviation.

We do not recommend repeated use oxygen free copper gasket, and it is strongly recommended that each time the fastening flange are installing a new metal gasket. When the flange fastener tighten to the specified torque in matching between flange gaps, this is normal phenomenon, is also desirable. Don't need to tighten the flange can be realized between the metal UHV ultra-high vacuum environment.

OFHC represents "oxygen free copper or grade of electrolytic copper, is most UHV selection in the application of ultra high vacuum sealing metal gasket materials. For special applications cannot use oxygen free copper, also can use all kinds of metal gasket materials, including nickel, aluminum and silver plated copper.