Abstract: An automatic milling machine mills a gasket. The automatic milling machine controls the position of a cutter head relative a table. The automatic milling machine rotates the gasket with a motor. Parameters of the motor are monitored to determine the amount of rotation of the gasket.

Abstract: An isolation gasket for use between facing flanges of two flow conduit sections for fluid passage therethrough. The isolation gasket includes non-conductive layers and coatings that cover a flat metal core ring to provide electrical isolation, and a fire resistant layer adjacent another non-conductive layer wherein this side by side arrangement uniquely maintains a seal during a fire. In one form, a serrated ring portion of the flat metal core ring has a convex profile.

Abstract: A gasket for use between adjoining pipe flanges includes a retainer which defines a bore and includes a first face and an opposite second face. The retainer is constructed and arranged with a first groove in the first face and with a second groove in the second face, the first groove includes a first form for seal retention and the first seal element includes a first cooperating form for retention of the seal element within the first groove. A second seal element is received within the second groove and the retention of each seal element within its respective groove is accomplished without the use of a bonding material.

Abstract: An isolation gasket for use between facing flanges of two flow conduit sections for fluid passage therethrough. The isolation gasket includes non-conductive layers and coatings that cover a flat metal core ring to provide electrical isolation, and a fire resistant layer adjacent another non-conductive layer wherein this side by side arrangement uniquely maintains a seal during a fire. In one form, a serrated ring portion of the flat metal core ring has a convex profile.

Abstract: A spiral-wound gasket for use in a HF alkylation unit and positioning between facing conduit flanges includes an outer ring, an inner ring, and low-compression spiral-wound portion positioned between the outer ring and the inner ring.

Abstract: A gasket for use between adjoining pipe flanges includes a retainer which defines a bore and includes a first face and an opposite second face. The retainer is constructed and arranged with a first groove in the first face and with a second groove in the second face, the first groove includes a first form for seal retention and the first seal element includes a first cooperating form for retention of the seal element within the first groove. A second seal element is received within the second groove and the retention of each seal element within its respective groove is accomplished without the use of a bonding material.