Metal-energized hybrid API 6A seals Singapore combine PEEK or Elgiloy elements with elastomeric backups for fire-safe, bidirectional sealing in extreme HPHT wellheads. They resist galling and extrusion in casing spools and valve bodies. Singapore-supported deepwater tie-backs depend on these advanced seals for critical containment and compliance. https://globalsealstech.com/product-category/oil-gas-seals/api-6a-wellhead-equipment-seals/