Case Studies of Pipeline Projects for Clients in Various Countries

1.Philippines · Geothermal Power Plant

• Client: A geothermal power station in Leyte
• Project: Geothermal steam transport piping
• Challenge: Geothermal fluid contained H₂S and silicates with pH as low as 3, causing severe acidic corrosion; high temperature (180°C) + two-phase flow erosion
• Solution: Selected Titanium Gr.2 flanges resistant to acidic geothermal fluid; weld-neck structure to withstand two-phase flow erosion; paired with high-temperature graphite gaskets

Result: Solved a long-standing corrosion challenge in the geothermal industry; flange life extended from 8 months to 5+ years; listed by the Philippine Department of Energy as a recommended geothermal project supplier

2.Kazakhstan · Crude Oil Exports

• Client: A crude oil export pipeline project in the northern Caspian region
• Project: Long-distance pipeline pump station flange connections
• Challenge: Pipeline crossed sub-Arctic steppe (-45°C) and saline-alkali land; flanges required dual GOST (Russian) and ASME certification; long-distance pipelines demanded high batch-to-batch consistency
• Solution: Used ASTM A420 WPL6 low-temperature steel flanges with simultaneous GOST 12821 and ASME B16.47 certification; same-heat-lot forging ensured batch consistency; low-temperature impact and hardness testing per batch

Result: Passed dual-standard acceptance on the first try; no brittle fracture during winter construction; full batch interchangeability shortened installation by 20%

3.Bangladesh · Gas-Fired Power Plant

• Client: A 225MW gas combined-cycle power plant in Chittagong
• Project: Natural gas pressure regulation station piping
• Challenge: Bangladesh’s high temperature and humidity (>85% RH) caused severe rusting of standard carbon steel flanges within 3 months of storage, rendering them unfit for installation; tight schedule
• Solution: Added VCI vacuum anti-rust packaging with desiccants before shipment; anti-rust oil coating with peelable protective film; provided on-site moisture-proof storage guidance; manufactured to ASME B16.5 Class 150
• Result: Zero rust upon on-site unpacking; smooth installation; anti-rust solution adopted by the owner as the plant-wide fitting procurement standard
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• 4.Malaysia · Petrochemical Plant
• Client: A petrochemical complex in Johor
• Project: Aromatics unit piping system
• Challenge: The project mixed ASME (U.S.) and JIS (Japanese) standard equipment, creating flange connection difficulties; the medium was benzene, requiring strict sealing
• Solution: Provided a standard conversion solution with custom transition flanges (ASME RF face on one side, JIS FF face on the other); spiral wound gaskets with inner and outer rings for zero benzene leakage
• Result: Resolved the multi-standard connection challenge; unit started up successfully on the first try; client engineer praised the solution for “saving at least 2 weeks of on-site modification”