Hammer union seals are critical components in Australia's high-pressure oil and gas pipelines, designed to withstand extreme pressures up to 15,000 PSI in figure 602, 1002, and 1502 unions. Made from HNBR, FKM, or FFKM elastomers, they provide gas-tight seals preventing leaks during fracking, cementing, and acidizing operations in the Cooper Basin https://globalsealstech.com/product/hammer-union-seal-2/