Views: 0 Author: JC Publish Time: 2026-06-18 Origin: JC
As semiconductor manufacturing, precision laboratory testing, new energy hydrogen production, and fine chemical industries develop rapidly, the standards for piping materials used in specialty gas transportation are continuously upgrading. PTFE (Teflon) gas tubes, as a core fluoroplastic consumable, have seen a steady rise in market demand and are quickly replacing traditional gas tubes such as PU, PVC, and rubber.
Teflon material possesses extremely strong chemical inertness, reacting almost not at all with acids, alkalis, organic solvents, and corrosive gases. It can also withstand an ultra-wide temperature range from -200°C to 260°C. Its smooth inner wall minimizes adsorption and impurity析出, making it the optimal choice for high-purity gas transportation. The current industry market is clearly stratified: the production threshold for low-end general-purpose PTFE gas tubes is low, with many small factories producing them using recycled materials and ordinary resins. These tubes have rough inner walls, large dimensional errors, and are prone to releasing impurities and leaking over long-term use, suitable only for low-demand general gas transportation.
In contrast, high-end high-purity Teflon gas tubes used in semiconductor, chromatography, lithium battery, and hydrogen production fields face multiple technical barriers. Raw materials must be low-metal-ion, high-purity virgin PTFE resin. Production is completed in Class 10,000 cleanrooms for extrusion, winding, cutting, and sealed packaging to avoid dust pollution. High-precision extrusion equipment controls wall uniformity, and finished products undergo multiple tests for cleanliness, sealability, and pressure resistance to ensure no particulate generation when conveying high-purity gases, thus not interfering with chip production or experimental test results.
Four major downstream sectors continue to drive incremental demand for high-end tubes: wafer manufacturing requires transporting corrosive specialty gases like hydrogen fluoride and silane, with the highest requirements for pipeline cleanliness; gas chromatography and mass spectrometry配套 pipelines must eliminate trace impurities to avoid interfering with detection data; electrolytic hydrogen production and lithium battery workshops utilize Teflon's resistance to hydrogen permeation and aging for stable gas supply; fine chemical enterprises use it for exhaust gas transportation of chlorine and hydrogen chloride, with a service life far exceeding ordinary tubes.
Previously, the high-end high-purity gas tube market was long dominated by overseas brands, resulting in high procurement costs and long delivery cycles. In recent years, domestic manufacturers have continuously advanced precision forming, clean production, and clean testing technologies. Their product performance has gradually matched imported products, entering domestic semiconductor equipment, laboratory instrument, and new energy equipment supply chains in large numbers, showing a significant trend of domestic substitution.
In the long term, the industry will move away from low-price competition, with development focusing on ultra-high-purity thin-walled tubes, high-pressure braided reinforced tubes, and integrated pipe fitting assemblies. Low-end capacity lacking quality control and clean production capabilities will be gradually phased out. Domestic scaled enterprises with complete production, testing, and customization capabilities will continue to capture the high-end market, assisting in the independent upgrading of domestic high-end gas pipeline supply chains.
