PTFE Lined Hose

A: Under normal use and weak corrosiveness of the medium, the service life can reach more than 10 years; in strong corrosive environments, it can be used for 5-8 years with careful maintenance, which is specifically affected by working conditions and maintenance frequency.

A: The installation method is similar to that of ordinary hoses, but it is necessary to avoid damaging the PTFE lining; the connection part must ensure good sealing, and it is recommended to use special seals and connection methods to prevent medium leakage.

A: Carbon steel outer layer: lower cost, suitable for low-pressure, non-corrosive external environment;
Stainless steel outer layer: It has stronger corrosion resistance and is suitable for humid and slightly corrosive environments or for scenes with high requirements on appearance.

A: Yes. Food-grade PTFE lined hoses comply with FDA 21CFR177.1550 standards, are non-toxic and free of precipitates, do not affect food flavor, and can be safely used for the transportation of fruit juice, milk and other food and beverages .

A: Slight wear does not affect corrosion resistance and sealing, and can continue to be used; if severe wear causes damage to the PTFE lining, exposing the outer material, it may cause corrosion or pollution and need to be replaced in time .

A: Compared with full PTFE hoses, PTFE lined hoses have enhanced mechanical strength and pressure resistance through the outer metal material, are more suitable for high-pressure scenarios that need to withstand external impacts, and have more advantageous costs .

A: Water pressure test can be used: fill the hose with clean water at 1.2 times the working pressure, let it stand for 30 minutes, and observe whether the pressure drops or the interface leaks; air pressure test is recommended for high-pressure scenarios to assist verification

A: Rust on the outer layer mainly affects structural strength and appearance, and will not directly affect the corrosion resistance of the inner PTFE in the short term; however, severe rust may cause damage to the outer layer and lose its supporting role, so it is recommended to maintain or replace it in time.