Manguera revestida de PTFE resistente a ácidos y álcalis 304 316
US$6.36
304 / 316 PTFE lined stainless steel hose, inner diameter DN8‑DN200. This acid alkali resistant teflon lined flexible metal hose features excellent corrosion resistance against strong acid, alkali and organic solvents. Supports flange, quick coupling and custom end fittings. It can bear pressure and vacuum, compensate pipeline vibration and thermal displacement. Widely used in chemical, petrochemical, wastewater treatment, new‑energy and marine engineering. Custom lengths and OEM service available for global industrial projects.
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Especificaciones
Descripción
Brief Introduction
This PTFE‑lined metal hose is built with seamless virgin PTFE inner tube wrapped by multi‑layer stainless steel braided reinforcement. It is purpose‑built to handle highly corrosive process fluids across worldwide industrial facilities. The inner PTFE liner exhibits excellent chemical inertness, preventing chemical reactions when conveying strong acid, strong alkali and various organic solvents.
Structurally flexible, this hose can compensate axial offset, lateral displacement and angular deflection generated by pipeline thermal expansion and mechanical shaking. It relieves mechanical stress on rigid pipe connections and reduces the risk of joint fracture in circulating systems. The ultra‑smooth inner surface avoids medium accumulation and residue, making it suitable for sanitary‑critical working conditions in pharmaceutical, food and fine‑chemical processing.
Multiple end‑connection options are available, including union, flange and ferrule‑type fittings to adapt to diverse local installation standards in different countries. Both short laboratory‑use hoses and long‑run assembly for large‑scale industrial loops can be realized via custom production.
Complete Size Chart
DN Inch Inner Diameter Max Working Pressure Main Application
DN6 1/4″ 8.8mm 15MPa Laboratory sampling, micro‑flow chemical pipeline
DN15 1/2″ 13.5mm 12.5MPa Strong acid and organic solvent transfer
DN25 1″ 25mm 8MPa Chemical reactor supporting pipeline
DN50 2″ 50mm 5MPa Large‑scale industrial circulation pipeline
DN80 3″ 76mm 3MPa Medium‑caliber chemical delivery pipeline
DN100 4″ 101.6mm 2.5MPa Heavy‑duty industrial process piping
Core Structural Advantages
‑ Liner: Seamless virgin PTFE, non‑aging and scale‑resistant
‑ Outer braid: 304 / 316 stainless steel, anti‑fatigue under cyclic pressure
‑ Media adaptability: Compatible with corrosive chemicals and sanitary process fluid
‑ Installation feature: Tolerates multi‑direction pipeline displacement
Servicio personalizado
Custom overall hose length, special transition adapters and non‑standard end fittings are supported to meet global project‑specific requirements.
Especificaciones
# Specifications
Operating Temperature Range: -70℃ to 260℃
Rated Working Pressure: 2.5‑15 MPa
Safety Burst Pressure: 4 times the nominal working pressure
Inner Liner: Seamless virgin PTFE tube, non‑polluting, low friction coefficient
Reinforcement Layer: Multi‑ply 304 / 316 stainless steel wire braid, anti‑fatigue under cyclic pressure
Applicable Media: Concentrated acid, strong alkali, various organic solvents, pharmaceutical sanitary fluid, low‑viscosity chemical process medium
Allowable Working State: Positive pressure and partial vacuum service
Available End Connections: Flange, union, ferrule, thread, custom transition adapters, complying with global mainstream industrial connection standards
Available Nominal Diameter: DN6‑DN200
Custom Length: Support non‑standard hose length for worldwide project requirements
Surface Treatment: Natural stainless steel finish, special surface treatment optional
Quality Standard: Manufactured to meet international general chemical equipment specification for global industrial procurement
Preguntas frecuentes
Preguntas frecuentes
Q1: Can your PTFE‑lined metal hose work under vacuum conditions?
A1: Yes. Our seamless PTFE‑lined metal hoses can withstand moderate vacuum service. Larger‑diameter hoses require internal anti‑collapse support sleeves for long‑term vacuum application. Please inform us of your vacuum degree for proper configuration.
Q2: What end connection standards do you support for global projects?
A2: We supply flange, union, ferrule and threaded fittings complying with DIN, ANSI, JIS and other international standards. Custom‑made transition adapters are available to match local installation requirements in different countries.
Q3: How to choose the correct hose length for chemical piping?
A3: The hose length must reserve extra allowance to absorb thermal expansion, mechanical vibration and pipeline offset. Do not install hoses under forced tension. Provide your drawing or working condition data, and our engineers can recommend suitable length.
Q4: Are your PTFE lined hoses suitable for frequent cyclic pressure working conditions?
A4: The multi‑layer stainless steel braided structure offers good anti‑fatigue performance for cyclic pressure. Continuous frequent pressure impact will shorten service life, we can adjust braid layers according to your actual cycle frequency.
Q5: Do you offer third‑party test reports for overseas procurement?
A5: We can provide material certification for PTFE liner and stainless steel braid. Third‑party independent inspection can be arranged upon buyer’s request for global project bidding.
Q6: What media cannot be conveyed by PTFE‑lined metal hose?
A6: PTFE has excellent chemical resistance, but it is not suitable for molten alkali metal, high‑temperature fluorine‑containing gas under extreme working conditions. Please send us your medium composition and temperature for confirmation.
Q7: Can you produce non‑standard DN sizes which are not listed in size chart?
A7: Yes. Non‑standard inner diameter, special wall‑thickness and special overall length can be customized to satisfy special‑purpose industrial facilities worldwide.
