2002 Replacement Parts Catalog - cedip

UIIBOPThe Cameron U II BOP takes all of the features of the U BOP and adapts them for subsea use in the 18-3/4”10,000 and 15,000 psi WP sizes.Like all other Cameron preventers, the rams in the U II BOP are pressure-energized. Wellbore pressure actson the rams to increase the sealing force and maintain the seal in case of hydraulic pressure loss. Seal integrityis actually improved by increased well bore pressure. Other features of the U II BOP include:• Internally ported hydraulic stud tensioning system ensures that stud loading is consistentlyaccurate and even.• Bonnet seal carrier is available to eliminate the need for high makeup torque on bonnetstuds and nuts.• Hydraulically operated locking mechanisms, wedgelocks, lock the ram hydraulically and holdthe rams mechanically closed even when actuating pressure is released. The operating systemcan be interlocked using sequence caps to ensure that the wedgelock is retracted beforepressure is applied to the open BOP.• A pressure balance chamber is used with the wedgelocks to eliminate the possibility of thewedgelock becoming unlocked due to hydrostatic pressure.Other features include hydraulically opening bonnets, forged body and a wide selection of rams to meet allapplications. See pages 67-70 for rams available to fit the U II BOP.TC1001 61 © 2002 Cooper Cameron, Cameron Division