Overview
Anhui Xinfulong's Compression Molded PTFE Lined Tees are engineered to provide reliable branch connections in piping systems handling the most aggressive chemicals, high-purity fluids, and corrosive media. Manufactured using advanced powder compression molding technology, our tees feature a seamless PTFE lining that completely isolates the metal body from the process medium, delivering exceptional corrosion resistance, superior anti-permeation properties, and long-term reliability in the most demanding service conditions.
The compression molding process begins with high-purity PTFE powder — precision-compressed under high pressure to form a dense, void-free preform, which is then sintered under precisely controlled temperatures to fuse the particles into a homogeneous, high-performance lining.- This advanced technique enables the production of seamless linings for large-diameter vessels and complex-shaped fittings such as tees and crosses — without welds, seams, or joints that can become failure points.- The result is a fully integrated, steel-fluoropolymer composite that achieves "equalization" of the steel and fluoroplastic — enabling reliable operation under high positive pressure, full vacuum, and extreme temperature cycling without delamination, blistering, or deformation.
Our compression molded tees combine the structural strength of the steel shell with the chemical inertness and non-stick properties of PTFE, making them the ideal choice for branch connections in semiconductor, wet chemical, pharmaceutical, and chemical processing applications.
Key Features
Seamless, Void-Free Lining Construction
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Compression molding creates a completely seamless PTFE lining — no welds, no seams, no joints-
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Dense, void-free structure eliminates pathways for fluid penetration and permeation
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Uniform lining thickness throughout the entire fitting, including complex branch geometries
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Integrally molded sealing faces provide reliable, leak-free flange connections without the need for additional gaskets
Exceptional Chemical Resistance
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Inert to virtually all chemicals — including concentrated acids, alkalis, organic solvents, strong oxidizers, and toxic or volatile compounds
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Resistant to sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, and many other aggressive media
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Suitable for use with virtually any chemical medium, except molten alkali metals, elemental fluorine, and aromatic hydrocarbons under certain conditions
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Outstanding resistance to permeation — high-density lining with optimal thickness minimizes chemical penetration
Broad Operating Range
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Temperature Range: -50°C to +200°C (with specific grades available for extended ranges)
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Pressure Range: Full vacuum (-0.096 MPa) to 3.0 MPa positive pressure
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Vacuum Resistance: Reliable operation under full vacuum conditions within the operating temperature range
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Excellent resistance to thermal shock and rapid temperature cycling without lining detachment or deformation
Superior Mechanical Integrity
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Steel shell provides high structural strength and rigidity
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PTFE lining offers excellent anti-adhesion properties for easy cleaning and reduced fouling
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High density and sufficient lining thickness ensure long service life
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Integrally molded design eliminates weak points associated with welded or fabricated linings
Comprehensive Corrosion Protection
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Full PTFE lining on all wetted surfaces — inner walls, branch opening, and sealing faces
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Available with fixed flanges, loose flanges, or combination configurations to suit installation requirements
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Flange faces feature integrally molded PTFE sealing surfaces for reliable, gasket-free sealing
Technical Specifications
Available Configurations
Applications
Our Compression Molded PTFE Lined Tees are widely deployed in branch connection applications across industries requiring exceptional corrosion resistance and high purity:
Semiconductor Manufacturing
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High-purity chemical distribution systems
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Wet etching and wafer cleaning processes
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Ultra-pure water (UPW) systems
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Chemical mechanical planarization (CMP) slurry delivery
Wet Electronic Chemicals
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Transfer and distribution of high-purity acids, solvents, and etchants
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Chemical blending and distribution systems
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High-purity reagent feed lines
Chemical & Petrochemical Processing
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Handling of strong acids (sulfuric, hydrochloric, nitric, hydrofluoric)
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Caustic soda and alkaline solutions
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Organic solvents and aggressive media
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Chlor-alkali industry and fertilizer production
Pharmaceutical & Biotech
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High-purity fluid transfer with zero contamination risk
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Solvent and reagent distribution systems
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FDA-compliant processing lines
New Energy
Water & Wastewater Treatment
Why Choose Xinfulong Compression Molded PTFE Lined Tees?
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Seamless, Weld-Free Construction — Compression molding produces a completely seamless lining with no welds, no seams, and no joints — eliminating the failure points common in fabricated or welded linings-
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Superior Corrosion Protection — Full PTFE lining on all wetted surfaces provides chemical resistance superior to expensive alloys and far outlasts standard stainless steel in corrosive service
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Excellent Anti-Permeation Performance — High-density, void-free lining with optimal thickness minimizes chemical penetration, ensuring long-term integrity
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Reliable Vacuum Service — Engineered for full vacuum operation without lining collapse or detachment — a critical requirement in chemical processing
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Thermal Shock Resistance — Withstands rapid temperature cycling without delamination, blistering, or deformation
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Cleanroom Manufacturing — Critical production processes carried out in Class 1000/10,000 cleanrooms, ensuring the highest levels of purity
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Industry-Leading Expertise — Backed by decades of fluoropolymer processing experience and R&D collaboration with Japanese and Korean experts
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Comprehensive Quality Assurance — ISO 9001, ISO 14001, ISO 45001 certified with full in-house testing capabilities including dimensional inspection, pressure testing, and surface quality assessment
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End-to-End Service — From custom design and material selection to manufacturing, testing, and after-sales support
Customization Options
We offer fully customizable compression molded PTFE lined tees to meet your specific requirements:
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Custom diameters from DN20 to DN600
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Equal or reducing configurations
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Shell materials: carbon steel, stainless steel (304/316L), or specified alloys
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Flange types: fixed, loose, or mixed configurations
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Flange standards: ANSI, DIN, JIS, GB, or custom
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Special lining thicknesses for demanding applications
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Custom dimensions and branch angles
