Introduction to plastic coated metal hose
Plastic-coated metal hoses are primarily constructed from austenitic stainless steel, ensuring outstanding resistance to both high temperatures and corrosion. This material choice allows the hose to operate effectively across a wide temperature range, from -196°C to 600°C. Depending on the specific corrosive nature of the medium being transported, different grades of stainless steel can be selected to further enhance the hose's durability and performance in various environments.
The annular plastic-coated metal hose features a tubular shell with a corrugated, closed-ring design. The wave-like structure is connected through circular corrugations, creating a flexible yet strong configuration. These hoses are typically manufactured from seamless or welded pipes. Due to the limitations of the production process, the length of a single section is generally shorter compared to spiral bellows, making them more suitable for applications requiring localized flexibility and precision.
Plastic-coated metal hoses are produced using extremely thin-walled, seamless or welded stainless steel tubes that undergo high-precision plastic forming. The unique profile of the hose gives it excellent flexibility and fatigue resistance, allowing it to easily absorb cyclic loads and deformations caused by movement within pipeline systems. This makes them ideal for use in dynamic environments where vibration, thermal expansion, or mechanical stress is common.
Thanks to their robust construction and adaptability, plastic-coated metal hoses are widely used in industries such as chemical processing, petrochemicals, pharmaceuticals, and aerospace. Their ability to maintain structural integrity under harsh conditions ensures long service life and reliable performance, making them a preferred choice for critical piping applications.
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