6-3/4"

Manufactured for use in vacuum piping systems, CF flanges use a mechanical seal to create a leak-tight connection between flanges. When the bolts squeeze the flanges together, the soft metal gasket melds into a thin groove cut into the flat flange surface which provides the leak-tight seal. Flanges operate in temperature from -196°C through 450°C and pressures from 760 Torr (103mbar) to less than 1 x 10-12 Torr (1 x 10-12 mbar). Available in fixed or rotatable designs. A fixed design is a one piece bolt-hole pattern. The rotatable design consists of a weld ring and bolt ring, which rotates to mate with the other flange for easier installation.

Fixed

SKU OD - A Thru Hole - B C D Setback - E F Bolt Hole Diam/Thrd Bolt Holes Bolt Hole Style Price
1830 6.75 4.875 5.01 0.84 0.46 5.969 5/16-24 18 Tapped $114.00 Add to cart
1829 6.75 3.875 4.01 0.84 0.46 5.969 5/16-24 18 Tapped $114.00 Add to cart
1828 6.75 0.84 5.969 5/16-24 18 Tapped $114.00 Add to cart
1827 6.75 4.875 5.01 0.84 0.46 5.969 5/16-24 18 Clearance $97.00 Add to cart
1826 6.75 3.875 4.01 0.84 0.46 5.969 0.332 18 Clearance $97.00 Add to cart
1825 6.75 - - 0.84 - 5.969 0.332 18 Clearance $97.00 Add to cart

Rotatable

SKU OD - A Thru Hole - B C D Setback - E F Bolt Hole Diam/Thrd Bolt Holes Bolt Hole Style Price
1862 6.75 4.875 5.01 0.84 0.46 5.969 5/16-24 18 Tapped $135.00 Add to cart
1861 6.75 3.875 4.01 0.84 0.46 5.969 5/16-24 18 Tapped $135.00 Add to cart
1860 6.75 0.84 5.969 5/16-24 18 Tapped $135.00 Add to cart
1859 6.75 4.875 5.01 0.84 0.46 5.969 0.332 18 Clearance $102.00 Add to cart
1858 6.75 3.875 4.01 0.84 0.46 5.969 0.332 18 Clearance $102.00 Add to cart
1857 6.75 - - 0.84 - 5.969 0.332 18 Clearance $102.00 Add to cart