【Product Overview】

The PTFE Lined Metal Hose Assembly is a composite metal hose specially developed for conveying strong acid, alkali and corrosive media in industries such as chemical and metallurgical engineering. It solves common pain points of ordinary stainless steel hoses such as poor corrosion resistance, insufficient temperature and pressure resistance of rubber hoses, easy leakage and medium pollution during long-term use. The product adopts a three-layer composite structure of PTFE inner lining, stainless steel corrugated pipe and stainless steel braided mesh, integrally welded with flanged connections. The inner Teflon layer is corrosion-resistant and non-sticky, while the outer stainless steel provides mechanical strength and protection, combining excellent corrosion resistance and mechanical properties. It can operate stably for a long time under complex working conditions such as strong corrosion, alternating high and low temperatures and equipment vibration, making it a key flexible connection accessory for corrosive fluid conveying systems.

【Product Structure & Material Description】

1. Inner PTFE (Teflon) Lining: Made of food/industrial grade pure Teflon material with excellent chemical stability, resisting long-term erosion of most strong acids, strong alkalis and organic solvents without corrosion, swelling or aging. The inner wall is smooth and non-adhesive with no dead corners, easy to clean, eliminating medium residue and pollution and ensuring fluid purity.
2. Middle Stainless Steel Corrugated Pipe: Precisely formed from 304/316L stainless steel with good flexibility and small bending radius, effectively compensating pipeline thermal expansion and contraction displacement, buffering equipment operation vibration and noise, and high flex fatigue strength, suitable for frequent deformation working conditions.
3. Outer Stainless Steel Braided Mesh: Densely reinforced with high-density stainless steel wire braiding, improving the overall tensile strength, pressure resistance and impact resistance of the hose, protecting the inner structure from external wear and pulling damage, explosion and crack resistant with stable structure, extending service life.
4. Flanged Connection Assembly: Standard carbon steel/stainless steel flanges with firm welding and flat sealing surfaces, seamlessly dockable with standard pipeline flanges. Zero leakage sealing is achieved with corrosion-resistant gaskets, easy disassembly and maintenance, compatible with various industrial pipeline systems.

【Core Technical Parameters】

• Product Name: PTFE Lined Metal Hose Assembly
• Lining Material: PTFE (Polytetrafluoroethylene)
• Outer Pipe Material: Stainless Steel (304/316L optional)
• Flange Material: Carbon Steel/Stainless Steel (customizable as required)
• Operating Temperature: -20℃~+260℃
• Working Pressure: 0.6MPa~2.0MPa (adjustable according to caliber and length)
• Applicable Media: Acid-base solutions, strongly corrosive liquids, chemical media, food-grade fluids
• Applicable Industries: Metallurgy, Mining, Petroleum, Chemical, Pharmaceutical, Environmental Protection, etc.
• Connection Type: Flanged connection (customizable according to national/US standards)

【Core Performance Advantages】

1. Strong Corrosion Resistance, Suitable for Acid-Base Media: PTFE lining resists most acids, alkalis and solvents, no leakage or aging during long-term use in corrosive conditions, with performance far exceeding ordinary metal hoses.
2. Stable at High and Low Temperatures, Wide Working Condition Adaptability: No brittleness at -20℃, no softening at +260℃, stable operation under alternating high and low temperature environments, suitable for complex industrial scenarios.
3. Smooth Lining, Non-Adhesive, No Medium Pollution: Smooth inner wall without dead corners, no residue or adhesion during medium conveying, easy to clean, eliminating secondary pollution and meeting food/pharmaceutical grade cleanliness requirements.
4. Reliable Sealing with Flanged Connections: Firmly welded standard flanges with flat sealing surfaces, achieving zero leakage with corrosion-resistant gaskets, eliminating hidden dangers of leakage.
5. Flexible Vibration Damping, Compensating Pipeline Displacement: Flexible and bendable corrugated structure, effectively absorbing equipment vibration and compensating pipeline thermal expansion and contraction, reducing pipeline stress.
6. Explosion and Impact Resistant, High Mechanical Strength: Reinforced by stainless steel braided mesh, pressure and impact resistant, explosion and crack resistant, suitable for high pressure and high vibration working conditions with long service life.

【Application Scope】

• Chemical Industry: Conveying pipelines for acid-base solutions and corrosive chemical media, flexible connections between reactors, storage tanks and equipment.
• Petroleum and Mining: Slurry and oil-gas conveying pipelines containing sulfur and acid-base, adapting to complex working conditions.
• Metallurgical Industry: Conveying corrosive fluids such as pickling and electroplating, high-temperature acid-base medium pipelines.
• Environmental Protection and Pharmaceutical Industry: Sewage treatment acid-base neutralization pipelines, corrosive liquid medicine conveying in pharmaceutical industry.

【Factory Supply Advantages】

We are a professional direct manufacturer of PTFE lined metal hose assemblies, using high-purity PTFE lining and national standard stainless steel raw materials, produced in accordance with industrial grade standards. Each product undergoes pressure testing, sealing inspection and corrosion resistance sampling inspection with strict quality control. Sufficient stock of common specifications with short lead times for custom orders. We accept bulk orders from chemical and metallurgical enterprises, providing one-stop corrosive pipeline solutions and support for custom specifications. Perfect after-sales service with stable long-term supply.