The elastomeric ring, core to the hammer union seal, is often reinforced with brass or stainless steel anti-extrusion rings to enhance durability. Reinforcement prevents seal extrusion during pressure fluctuations, maintaining sealing effectiveness under extreme service conditions. Standard durometers for these elastomer seals are 85-90, striking a balance between flexibility and resi... https://globalsealstech.com/product/hammer-union-seal-2/