Teflon hose (PTFE bellows, PTFE bellows, Teflon bellows, TEFLON HOSE), English abbreviation PTFE, polytetrafluoroethylene (F4, PTFE) has a series of excellent performance : High temperature resistance-long-term use temperature of 200 ~ 260 degrees, low temperature resistance-still soft at -100 degrees; corrosion resistance-resistance to aqua regia and all organic solvents; weather resistance-the best aging life in plastic; high lubrication-with plastic The smallest friction coefficient (0.04); non-sticky-has the smallest surface tension in solid materials without sticking any substance; non-toxic-has physiological inertia; excellent electrical properties, is an ideal Class C insulation material. For more details, please see Teflon material introduction, physical properties, chemical properties. Teflon is the highest temperature resistance (280 ° C), the highest electrical resistance (45KV / mm), strong acid resistance, strong alkali resistance, most anti-stick, The most slippery, wear-resistant engineering plastic material, and widely used in machinery, automotive, electronics, chemical, valve and other parts. Teflon hoses are widely used in the chemical, instrument, electric heating, and machinery industries. Among them, insulating sleeves are widely used in aerospace, automotive, medical, electronic transformer, and communication technology industries due to high temperature and voltage resistance (300V).
The stainless steel mesh sleeve is the main pressure-bearing part of the polytetrafluoroethylene pipe installed in the pressure pipeline. At the same time, it protects the polytetrafluoroethylene pipe. Depending on the pressure in the pipeline and the application site, one or more layers of stainless steel can be selected The wire or steel belt is woven according to certain parameters to form a high-pressure resistant PTFE hose. There are two types of stainless steel mesh covers: steel mesh covers and steel mesh covers. Our company has recently developed a PTFE bellows that can withstand negative pressure. Welcome to inquire.
There are many ways to connect Teflon hoses. Generally, flange connection, oil connection, screw connection, quick connector, and direct connection with pipe fittings can be used to fix with pipe clips or metal wires. Our company can also provide corresponding connection methods according to user requirements. Teflon corrugated pipes with a length of DN10-150mm and a length of 20-20000mm are available. The standard wall thickness is 1.5mm-2.2mm, and the number of fatigue is ≥1000 times.
Inner tube smooth Teflon hose
Inner tube spiral Teflon hose
1. Teflon Hose selection :
Before selecting, please refer to the influence of the quality of the PTFE inner tube on the performance of the pressure hose. You can also contact our sales engineer to reasonably select the corresponding F4 hose and joint model according to the specific use environment of the PTFE hose. . (Usage requirements include: working pressure, temperature, corrosiveness of medium, flow rate, ambient temperature, and requirements for connection form of pipelines, etc.)
2. Teflon Hose piping precautions :
a. When piping, please avoid extreme local bending. The radius of the bending part: static piping and moving piping should be larger than the standard minimum bending radius and repeated bending radius.
b. Avoid twisting the piping. When moving the piping, the direction of movement should be on the same plane as the bent hose assembly; when there is a rotation displacement, it should be used with a rotary joint.
c. A piping system with repeated bending and displacement. The maximum bending radius should be taken as much as possible.
d. Avoid artificial stretching of the PTFE hose assembly. When the hose assembly has a margin, in principle, avoid telescopic displacement.
e. When used for vibration of the insulation piping system, please fix the pipe on the stationary side. If it is not fixed, resonance may occur.