export@ezsteelpipe.com
+86 731 8870 6116
| Fitting Type | Common Materials | Key Applications | Certifications |
|---|---|---|---|
| Butt-Welded (BW) Fittings | Stainless Steel, Carbon & Carbon Alloy Steel | High-pressure pipelines, Petrochemical facilities, Power plants | ASME B16.9, ISO 9001, API 5L |
| Socket-Welded (SW) Fittings | Stainless Steel, Copper & Nickel Alloy | Marine & Ship-building, Chemical processing | ASME B16.11, Lloyd's Register, EEMUA 144 |
| Threaded Fittings | Carbon Steel, Stainless Steel | Low to medium-pressure systems, Plumbing in power plants | ASME B1.20.1, BS 21 |
A leading petrochemical company operating a coastal refinery faced recurring issues with pipe fittings failing due to corrosion from saltwater exposure and the high pressure of hydrocarbon processing. Their existing carbon steel fittings were deteriorating within 18–24 months, leading to costly downtime and safety concerns.
We collaborated with the client to design custom butt-welded fittings made from 316L stainless steel, a material known for its superior corrosion resistance in chloride-rich environments. The fittings were also engineered with thicker walls to withstand the refinery's operating pressure of 15,000 psi. Each fitting underwent ultrasonic testing to ensure weld integrity and was certified to ASME B16.9 and API 5L standards.
Since installing the custom stainless steel BW fittings, the refinery has experienced zero failures. The extended service life (now exceeding 5 years) has reduced maintenance costs by 60% and eliminated unplanned downtime, significantly boosting overall operational efficiency.
Related Products