Tubing hanger seals isolate production tubing from annulus, using metal-end-cap (MEC) elastomeric seals or all-metal FS designs. MEC seals bond HNBR to Inconel caps, energized by hanger weight (200,000 lbf). Dril-Quip’s MEC seals seal 15,000 psi bidirectional, with RGD resistance per ISO 23936-2. FS seals in HPHT hangers use spring-energized Inconel lips, surviving 450°F. In GoM deepw... https://globalsealstech.com/product-category/oil-gas-seals/api-6a-wellhead-equipment-seals/