Subsea ball valves for PY30-1 Gas Supply to Huizhou Oilfield and HZ21-1B & HZ26-1 Gas Process

CHALLENGE:

This project in Huizhou, China, involved the design and installation of subsea ball valves for the subsea tee module and hot-tap module. These modules connect the existing Huizhou 21-1B subsea pipeline to the Panyu 30-1 to Hengqing terminal via pressure tapping. The project required valves capable of reliable operation, under challenging conditions, with both ROV and manual operation, while meeting API 6DSS design standards and ensuring a 20-year design life.

SOLUTION:

AMPO POYAM VALVES supplied a total of six subsea ball valves: one 10” 900# double ball valve (RTJ), one 10” 900# double ball valve (BW), one 10” 900# single ball valve (BW), and three 2” 900# single ball valves (BW/RTJ), all designed for ROV and manual operation. The valves were configured in SPE/DPE and internally clad with Alloy 625 weld overlay on sealing areas to maximize corrosion resistance and long-term reliability.

All valves met the project’s technical requirements, ensuring safe and reliable subsea operation. This successful execution reinforces AMPO POYAM VALVES’ position as a trusted supplier of highly engineered subsea valve solutions for complex subsea  projects.