2002 Replacement Parts Catalog - cedip

UM BOPsThe Cameron UM BOP is a lightweight blowout preventer designed for easy maintenanceand long life. The UM complements the existing line of U preventers with interchangeablebonnets that can be installed on any comparable size U BOP. Theshearing capabilities of the UM BOP bonnet is comparable to a U BOP bonnet withtandem boosters installed. The UM utilizes an internal booster that results in a reducedweight and length for the preventer and eliminates the need for externalplumbing. The UM replaces the UL since the UM bonnet features full stroke operationthat allows for one-step ram removal.Other features of the UM BOP include:• Bonnet seal carrier is available to eliminate the need for high makeup torqueon bonnet bolts and nuts.• Same bonnet used for both shear and pipe rams. The internal shear boostercan be reversed to act as a stroke-limiting device.• Internal booster provides the force necessary for shearing pipe and at thesame time provides a reduced sealing force for long ram seal life.• Hydraulically operated locking mechanisms, wedgelocks, are available forsubsea applications.• Most operating system seals can be replaced with the bonnet in theram-change position without removing the bonnets.• UM utilizes the same rams as the U BOP.Other features include hydraulically opening bonnets, forged body and a wide selectionof rams to meet all applications.UM Blowout PreventerSD 034595TC1001 27 © 2002 Cooper Cameron, Cameron Division