High-Silicon Glass-Lined Steel Piping are composite materials made by lining molten glass onto the inner surface of preheated carbon steel pipes, fittings, equipment, and valves, creating a strong bond between the glass and steel.
Product Features
- High Chemical Stability – Resistant to nitric acid, sulfuric acid, hydrochloric acid, oxalic acid, and various organic/inorganic chemical corrosion
- Smooth Inner Wall – Low fluid resistance, anti-scaling, easy to clean and maintain
- Wear & Pressure Resistant – Negative pressure tolerant, high mechanical strength, long service life
- Wide Temperature Range – Stable operation from -30°C to 300°C, adaptable to various working conditions
- High Cost Performance – Performance comparable to stainless steel, copper, aluminum and other precious metals at lower cost
- Easy Installation – Flange connection design for convenient installation and maintenance
Technical Specifications
| Nominal Pressure | PN≤20kg/cm² |
| Operating Temperature | -30°C ~ 300°C |
| Thermal Shock Resistance | Δt=200°C |
| Cold Shock Resistance | Δt=180°C |
| Rapid Temperature Change | -120°C |
| Size Range | DN25 ~ DN500 |
| Material Structure | Carbon Steel Shell + Glass Lining |
| Flange Standard | HG20592-97 |
Product Series
- Glass-Lined Piping (DN25-DN500)
- Glass-Lined Elbow (90°, U-type)
- Glass-Lined Tee/Cross
- Glass-Lined Flange
- Glass-Lined Reducer
- Glass-Lined Jacket Pipe
Application Fields
- Fine Chemicals – Acid/alkali medium transportation pipelines
- Petrochemicals – Oil refining & chemical plant pipelines
- Steel & Coking – Coal gas & chemical product transportation
- Power Industry – Desulfurization & denitration system pipelines
- Pesticides & Pharmaceuticals – High-purity chemical transportation
- Coal Gas Industry – Coal gas purification pipeline systems
- Textile & Chemical Fiber – Chemical fiber production pipelines
- Food Industry – Food additive transportation
