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Steel-Lined Glass Pipe Fittings

Steel-lined glass pipe fittings are steel-glass composite fittings made by lining molten glass onto preheated carbon steel pipe surfaces, offering strong corrosion resistance and cost efficiency.

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Steel-Lined Glass Pipe Fittings
Steel-lined glass pipe fittings are made by lining molten glass onto the inner surfaces of preheated carbon steel straight pipes, fittings, equipment, and valves, so the glass firmly adheres to the inner wall, forming a steel-glass composite material. They offer high chemical stability, a smooth inner wall, wear and pressure resistance, a wide temperature range, and cost-effectiveness compared to stainless steel, copper, or aluminum.

Performance Parameters

Size Range
DN25 to DN500
Flange Standard
HG20592-97
Nominal Pressure
PN≤20kg/cm²
Working Temperature
-30°C to 300°C
Thermal Shock Resistance
Δt=200°C

Common Materials

  • Carbon steel shell
  • Glass lining
  • • High chemical stability — resists nitric, sulfuric, hydrochloric, oxalic acid
  • • Smooth inner wall — low flow resistance, resists scaling, easy to clean
  • • Wear and pressure resistant — withstands negative pressure, high mechanical strength
  • • Wide temperature range — stable operation from -30°C to 300°C
  • • Cost-effective — can replace stainless steel, copper, aluminum
  • • Flanged connection for convenient installation/maintenance
  • Fine chemicals
  • Petrochemicals
  • Steel & coking industry
  • Power industry
  • Pesticide & pharmaceutical manufacturing
  • Gas industry
  • Textile & chemical fiber
  • Food industry

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