T-seal configurations enhance RGD resistant HPHT performance by incorporating backup rings that prevent extrusion while allowing elastomer breathing during decompression. This hybrid design excels in large-diameter wellhead seals where groove tolerances are critical. Their ability to handle bidirectional pressure and thermal cycling ensures reliable annulus sealing in HPHT completions... https://globalsealstech.com/product/rgd-rapid-gas-decompression-o-rings/