Top mount canopy seal clamp assembly

Details Top mount canopy seal clamp assembly Top mount canopy seal clamp assembly

1998-04-28

2000-08-29

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

For nozzle

376203, 376205, G21C 1300, G21C 13302, G21C 1304

Patent

active

061119288

ABSTRACT:
A top mount canopy seal mechanical clamp assembly 20 for repair of a leaking canopy seal weld 16 between a nuclear reactor head penetration nozzle 12 and a mating part 14 has an annular housing 24 with insert support halves 28 and 30 for surrounding the nozzle. A top plate 34 is urged toward the support halves and housing by Belleville washers mounted on cap screws 42 threaded in bores 44 of the housing. A flexible graphite seal annulus 22 is compressed by the clamping action against the canopy seal weld 16 to create a flexible graphite leak stopping seal at the weld.

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