These seals feature anti-extrusion lips and backup rings for reliable performance under thermal cycling from -40°C to 250°C. Compliant with API 6A and NACE MR0175, they resist H2S sour service up to 30%. Perth fabricators customize hardness from 70-95 Shore A for optimal compression set resistance. In remote FIFO sites, color-coded seals (red for 5000 PSI, blue for 10K) simplify field... https://globalsealstech.com/product/hammer-union-seal-2/