The XITA Steel-lined Flange (Butt Fusion Type) is engineered to provide a high-strength, corrosion-resistant connection for demanding industrial piping systems. Unlike standard plastic flanges, this hybrid solution combines a robust steel outer shell with a chemically inert PPH/PE lining for superior mechanical performance in hazardous acid/alkali environments.
Integrating a precision-molded plastic lining with a fusion-ready interface, it ensures leak-proof integration with PPH or PE pipelines while the steel backing delivers bolt-load stability and pressure resistance. It is the ideal choice for chemical processing, semiconductor facilities, and wastewater treatment systems requiring reliable, long-term flange connections where both structural strength and corrosion protection are critical.
Key Features & Technical Advantages
✔Exceptional Chemical Resilience: Engineered with a high-performance PPH/PE lining, the Steel-lined Flange (Butt Fusion Type) provides superior resistance to strong acids, alkalis, oxidizers, and solvents, ensuring durable protection at critical connection points in corrosive pipeline systems.
✔High Purity & Zero Contamination: The inert, smooth-surface plastic lining eliminates scaling, leaching, and external contamination, making it suitable for high-purity flange connections in semiconductor, pharmaceutical, and clean process applications where media integrity is essential.
✔Reliable Leak-Proof Seal: Featuring a precision-molded fusion interface with integrated lining design, it ensures a robust, pressure-resistant, and leak-free connection between the steel backing flange and PPH/PE pipelines, even under thermal cycling and system pressure fluctuations.
✔Structural Integrity Under Stress: The steel outer shell delivers exceptional bolt-load stability and mechanical strength, while the plastic lining maintains dimensional stability and sealing performance at flange joints under continuous thermal exposure and mechanical load.
✔ Lifecycle Value Advantage: While the initial cost may exceed standard plastic flanges, its hybrid construction combines steel strength with plastic corrosion resistance, delivering maintenance-free performance and measurable long-term savings in demanding corrosive and high-purity piping systems.
General Specifications
Item Name | PPH Steel-lined Flange-Butt fusion |
Material | 100% Virgin PPH |
Technics | Socket-fusion |
Color | White |
Size | DN15~DN400 |
Origin | Changzhou Jiangsu |
Typical Applications
Chemical Processing Plants | Provides high-strength, leak-proof connections for pipelines transporting corrosive acids, alkalis, and solvents, where both structural integrity and chemical resistance are essential. |
Semiconductor Manufacturing Facilities | Ensures contamination-free flange joints in ultrapure water and high-purity chemical distribution systems, with inert plastic lining preventing media contamination. |
Industrial Wastewater Treatment Systems | Delivers reliable, corrosion-resistant connections for aggressive wastewater, chemical dosing, and acid neutralization lines, withstanding pressure variations and thermal cycling. |
Why Choose XITA?

As a premier manufacturer ofPPH Steel-lined Flange-Butt fusion, XITA controls every step from raw material sourcing to final assembly.
✅ Direct-from-Factory Pricing: Our integrated production ensures competitive cost for bulk orders of Steel-lined Flanges (Butt Fusion Type) by eliminating distributor markups.
✅ 100% Dimensional & Seal Verified: Every flange undergoes strict inspection for fusion interface accuracy, lining integrity, and pressure resistance to prevent leaks at critical connection points.
✅ Ready Stock & Fast Dispatch: We maintain ample inventory of standard Steel-lined Flanges to ensure reliable supply and prompt delivery for industrial projects and maintenance needs.project installations and system upgrades.
FAQ
Q: How do you protect the actuator from acid fumes?
A: We utilize a double-sealing structure (O-rings + PTFE seat) to strictly isolate the medium, preventing corrosive vapors from entering the actuator housing.
Q: Can I integrate this valve with my PLC system?
A: Yes. Our valves come with standard wiring diagrams and support feedback signals, making integration into automated PLC systems seamless.
Q: What is the cycle life of the electric actuator?
A: The actuator is designed for high-frequency use, tested for over 50,000 cycles under rated load conditions.