Flexible hose is a general term for conveying pipes. In order to adapt to the physical and chemical conditions of various industries, flexible hoses usually have very strict standards for the chemical raw materials and processes of internal and external colloids. According to the classification of working conditions, common ones include:
1. Weld the hose. Used for gas welding, cutting, and other applications. The inner rubber material is mostly NBR or synthetic rubber, while the outer rubber is usually colored red, blue, yellow, etc. to indicate the specific gas.
2. Water supply hose. Used for irrigation, horticulture, construction, fire protection, equipment and tank truck cleaning, agricultural fertilizers, manure, industrial wastewater drainage, etc. The internal rubber materials are mostly PVC and EPDM.
3. Beverage and food hoses. Used for non lipid applications such as milk, carbonated beverages, orange juice, beer, animal and vegetable oils, drinking water, etc. The internal rubber material is mostly NR or synthetic rubber. Usually, food grade FDA, DVGWA, KTW, or CE certification is required.
4. Air hose. Used in compressors, pneumatic devices, mining, construction, and other fields. The internal adhesive materials are mostly NBR, PVC composite, PU, and SBR. There are usually strict requirements for the applicable pressure.
5. Hot water and steam hoses. Used for cooling water in refrigeration equipment, engine hot and cold water, food processing, especially for hot water and saturated steam in dairy factories. The internal rubber material is mostly EPDM.
