Inventors:
John A. Haeber - Fillmore CA
John K. Rains - Ventura CA
Brad D. Beitler - Ojai CA
George S. Kukuchek - Ventura CA
Assignee:
Vetco Offshore, Inc. - Ventura CA
International Classification:
F16L 3500
Abstract:
A marine riser coupling assembly comprised of a pair of flanged couplings (14, 16). A pin insert (36) is retained (44, 54) within tubular portions (22, 24) of the couplings. The insert has multiple outside diameters (50, 50), and seals (66, 74) on each.