Patent ID: 8249212

Claim:
A method for attaching a core spray sparger T-box clamp for a sparger T-box including a cover plate, wherein the T-box is in a shroud of a nuclear reactor pressure vessel, and the clamp includes an anchor plate, bearing plate, saddle bracket, clamp blocks and a carrier plate, the method comprising: prior to insertion of the clamp in a reactor pressure vessel, assembling at least the anchor plate, bearing plate, clamp blocks and saddle bracket; positioning the assembly of the anchor plate, bearing plate, clamp blocks and saddle bracket in front of the T-box such that the saddle bracket is below a sidewall of the T-box; elevating the assembly to seat the saddle bracket against a lower surface of the sidewall and sliding a locating pin on the saddle bracket into an aperture in the sidewall; securing the clamp blocks to core spray sparger pipes attached to the T-box; lowering the carrier plate onto an upper surface of the sidewall and attaching the carrier plate to the anchor plate, wherein a locating pin on the carrier plate slides into an aperture on the upper surface, and advancing the bearing plate to the T-box to bias against the cover plate of the T-box.