The Sentry C-29 casing spool has all of the same features and benefits as the C-22, but is designed for intermediate to extreme casing weights. This head design can also handle the standard C-21 and C-22 casing hangers.
The C-29 casing spool is designed for intermediate to extreme casing string weights
It incorporates a straight bowl design
Is available with Lock Down Screws (LDS) in the upper flange for mechanical casing hanger retention
Has flanges on both the top and bottom of the assembly
Has a seal area in the bottom flange for a secondary seal between the casing annulus and the flanged connection
Incorporates a test port in the lower flange to accommodate secondary seal testing