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SBMS-II

SBMS II

Based on the original SBMS seal design, the SBMS-II is used mainly as a production casing seal on either extended-neck mandrel hangers or directly against the casing stub when slip hangers are used. With bumps on the ID and OD of the seal, each seal lip engages its entry ramp, creating sealing contact stress. For 6-1/2" through 20" bore sizes, [some sizes] up to 20,000 psi, and AA-HH trim classes, the SBMS-II is ideal for applications in which extreme temperature fluctuations may occur.

When used against slip-suspended casing, FMC provides an ACME-threaded casing hold-down nut to minimize upward thermal expansion of the casing, acting as a bit guide to protect the seal when running tubing or going downhole.