In sour service environments governed by NACE and ISO material compatibility standards, gate valve seal materials must resist sulfide stress cracking, blistering, and rapid decompression damage. Elastomer compounds are specifically formulated to limit absorbed gas and to maintain mechanical properties after pressure release, reducing the risk of cracking or blister formation that can ... https://globalsealstech.com/product-category/oil-gas-seals/api-6a-gate-valve-seals/