Champion jointings offer special spring like metal strips, which are wound with asbestos/p.T.F.E/grafoil filler by a special process to assure a leakproof seal. The asbestos filler does the sealing and the metal strip provides the spring. This combination of metal and soft asbestos filler piles compresses to its predetermined thickness under bolting pressure and thereby prevents leakage within the limit of its specified pressure and temperature. With the addition of centering devices, "spitmaan" spiral wound gaskets can be adapted for use on many types of flanges and closures. Champion also manufacture a wide product range including compressed fiber jointing sheets and asbestos-free fiber jointing sheets.
