Fig 1502 hammer union seals Singapore handle 15,000 psi in high-pressure frac and acidizing. Lip-style designs with HNBR or Viton deliver bidirectional sealing and RGD resistance. Singapore stimulation fleets rely on these high-rated seals to prevent blowouts and leaks during intense pumping, backed by full traceability and API-compliant materials. https://globalsealstech.com/product/hammer-union-seal-2/