Clean Water, Zero Corrosion
AQUACORE lined stainless steel pipe solves the most common municipal and building plumbing failure mode: internal corrosion. Traditional galvanized and ductile iron pipes rust within years, contaminating water and causing leakage rates above 10%.
The 304 or 316L stainless inner liner never corrodes, meets GB/T 17219 drinking water standards, and maintains smooth flow without scaling or biofilm buildup. Carbon steel outer pipe provides structural strength at a fraction of solid stainless cost.
Applications
- Municipal drinking water distribution
- Building plumbing and HVAC
- Fire protection and sprinkler systems
- Food and beverage processing
- Desalination plant distribution
- Mining camp and remote infrastructure water
Frequently Asked Questions
What is lined stainless steel pipe?
Lined stainless steel pipe consists of a carbon steel outer pipe with a stainless steel (304 or 316L) inner liner. The liner provides a corrosion-free, food-grade wetted surface while the outer carbon steel handles structural loads at significantly lower cost than solid stainless pipe.
Is lined pipe safe for drinking water?
Yes. AQUACORE lined pipe meets GB/T 17219 drinking water hygiene standards. The 304 or 316L inner surface does not rust, leach contaminants, or require internal coating — eliminating the secondary contamination common with galvanized and ductile iron pipes.
How does lined pipe compare to galvanized pipe?
Galvanized pipe typically corrodes within 3–5 years, causing rust contamination and leakage rates exceeding 10%. Lined stainless pipe maintains a clean inner surface for the life of the building — typically 50+ years — with near-zero maintenance.
Can lined pipe be welded or cut on site?
AQUACORE uses mechanical lining optimized for water service at pressures up to 2.5 MPa. For cut-and-weld field installation, we provide connection fittings (threaded, grooved, flanged) and on-site welding guidance. For high-pressure industrial service, consider DURACORE metallurgically clad pipe instead.
What sizes are available?
Standard range is DN15 to DN300 with 6m or 12m lengths. Custom diameters and lengths available on request. Contact our engineers for project-specific specifications.