PTFE convoluted hoses are a better alternative to graphite, ceramic, glass pipes with lower mechanical strength. It can be used as feed and discharge hose for tank cars, storage tanks, containers and reactors.
They have the advantages of dislocation connection, balancing pipeline displacement and size change, and eliminating high-frequency mechanical vibration.
Generally, our PTFE convoluted hoses can be connected through flanges, threads, quick camlock connectors, or direct connection, and fixed by clamp or wire.
Our PTFE convoluted hoses can be customized in various sizes, shapes, colors, and end fittings. Additionally, they can be reinforced with braids to enhance their mechanical strength and pressure resistance.
PTFE Convoluted Hose Size
The following data are obtained from our actual molding production process.
Post Molding Hose ID (mm) | Post Molding Hose OD (mm) | Wall Thickness (mm) | After Molding Hose ID (mm) | After Molding Hose OD (mm) |
4 | 6 | 1 | 3.2~3.5 | 5.6~5.9 |
6 | 8 | 1 | 3.8~4.2 | 7.5~7.9 |
8 | 10 | 1 | 5.2~5.6 | 9.4~9.8 |
10 | 12 | 1 | 7.9~8.3 | 11.5~11.9 |
12 | 14 | 1 | 9.5~9.9 | 13.1~13.5 |
16 | 19 | 1.5 | 13~1.34 | 17.6~18.2 |
22 | 25 | 1.5 | 16.3~16.9 | 23.4~24 |
28 | 31 | 1.5 | 23.8~24.4 | 29~29.6 |
36 | 40 | 2 | 28.7~29.5 | 37.9~38.7 |
50 | 54 | 2 | 40.6~41.4 | 51~52 |
60 | 64 | 2 | 50~50.8 | 61~62 |
76 | 80 | 2 | 67.2~68 | 78~79 |
Reinforced PTFE Convoluted Hose
Our reinforced PTFE convoluted hoses are designed to withstand higher pressures and provide enhanced strength compared to non-reinforced hoses. The reinforcement typically consists of one or more layers of stainless steel wire or braid, which adds strength and stability to the hose structure.
Stainless Steel Braided
PTFE convoluted hoses can be reinforced with one or multiple layers of stainless steel braids. These braids provide added strength and support to the convoluted hose, allowing it to withstand higher pressures and prevent kinking or collapse.
Aramid Fiber Braided
Aramid fibers, such as Kevlar, are another popular reinforcement option for PTFE convoluted hoses. Lightweight Aramid reinforcement offers an excellent strength-to-weight ratio, abrasion and impact resistance, and high temperature resistance.
Polypropylene Braided
Polypropylene is a thermoplastic material known for its chemical resistance and flexibility. This braid helps prevent the convoluted hose from expanding under pressure. However, it is not as strong as stainless steel and has lower pressure ratings.