Rilson manufactures and supplies a large variety of ring joint gaskets. The RTJ standard size gaskets are manufactured in accordance to API-6A and ASME B16.20 specifications. Rilson is licensed by the American Petroleum Institute (API).
BX type Ring Joint Gasketsfor API 6BX Flange
The BX ring gasket differs from the standard oval or octagonal shape since it is square in cross section and tapers in each corner. All BX ring type joints incorporate a pressure passage hole to allow for pressure equalization each side of the sealing faces. On assembly, metal to metal contact of the flange faces is achieved. They can only be used in API 6BX flanges. BX is used at pressures up to 15,000 psi. Standard sizes are stocked in low carbon steel, 304 and 316.