Whether food-grade Teflon Hoses can pass high-temperature steam depends on the specific material and usage conditions. Common food-grade Teflon tubes include PTFE, FEP, and PFA. Among them, PTFE and PFA have better temperature resistance, and the long-term use temperature can reach 260°C. FEP is slightly lower, with a maximum long-term use temperature of 200°C. High-temperature steam in food processing, such as steam used in sterilizers and steamers, generally has a temperature of 121-135°C and a pressure of 0.1-0.3 MPa. In this case, PTFE and PFA tubes can fully withstand it and will not have any problems for continuous use for several years. FEP tubes can also be used in steam below 180°C for a short period of time, but long-term high temperature may make the tube soft and reduce its strength.
However, when choosing a tube, you must check whether it has food-grade certification, such as the US FDA certification or domestic food contact material safety standards. The raw materials of food-grade Teflon Hoses are of high purity, no other additives are added during the production process, and no harmful substances will be precipitated at high temperatures. This is very important. Although some industrial-grade Teflon tubes are also heat-resistant, there may be impurities in the raw materials and they cannot be used in contact with food.
In addition, high-temperature steam pipes should pay attention to the connection method of the pipes. If you use quick-connect fittings or threaded connections, there may be problems with seal aging at high temperatures. It is best to choose hot-melt welding or flared fittings to ensure that there is no steam leakage at the connection.
In general, as long as you choose the right material (PTFE or PFA is preferred), look at the certification, and do a good job of installation, food-grade Teflon Hoses can fully meet the use requirements of high-temperature steam environments, and are very suitable for scenes that require sanitation and disinfection, such as food processing and pharmaceutical preparations.
