Subsea ball valves for CNOOC Trunkline to Gaolan

CHALLENGE:

The YC13-1 Trunkline to Gaolan Branch Pipeline project, located in South China Sea, required the installation of a 25 km, 24-inch branch pipeline connecting the hot tap connector to CNOOC’s Gaolan Gas Plant, as well as the construction of a subsea PLET and associated plant modifications for fhe gas plant. The contractor requested several highly engineered subsea valves from AMPO to guarantee high reliability and safety under demanding service conditions, while meeting strict API 6DSS and API 6A PR2 qualification standards and achieving a 30-year design life

SOLUTION:

AMPO POYAM VALVES supplied two 24” 1500# two-piece subsea ball valves, each equipped with a gear operator. The valves were designed in SPE/DPE configuration and internally clad with Alloy 625 weld overlay to guarantee excellent corrosion resistance and long-term integrity in aggressive subsea environments.

The valves fully met the technical requirements of the project, confirming their superior performance and reliability. As a result, CNOOC recognized AMPO POYAM VALVES as an excellent partner for subsea valve solutions of all sizes and pressure classes.