1. What is a food-grade rubber pipe?
Food grade rubber tubing is a special type of rubber tubing that is used to convey food during food processing and conveying or in direct contact with food. This rubber tubing must meet strict hygiene standards to ensure the hygiene and safety of the food. Food-grade rubber hoses are widely used in various industries, such as food processing, beverage production, pharmaceutical industry, chemical industry, etc. It can be used to transport various food, medicine, chemical raw materials and other fluids, and can maintain its hygienic performance and sealing performance during use to ensure the smooth progress of production.
IIThe material of the food-grade rubber tube
Food-grade rubber tubing is usually composed of an inner and outer rubber layer and a skeleton layer. The skeleton layer materials are mainly cotton fiber, synthetic fiber, carbon fiber, asbestos, steel wire, etc. The material of the inner and outer adhesive layer is selected according to the specific use environment and requirements.
In general, the inner and outer rubber layer of ordinary rubber pipes are made of natural rubber, styrene-butadiene rubber or butadiene rubber. For hoses that require oil resistance, neoprene, nitrile, and other materials are usually used. For hoses that require acid and alkali resistance and high temperature resistance, EPDM rubber, fluorine rubber, silicone rubber, EPDM rubber and other materials will be used. These materials have good heat, chemical and aging resistance, and can be used for long periods of time in high-temperature, high-pH environments.
3. Standards for food-grade rubber pipes
The standards for food-grade rubber pipes mainly include the following aspects:
1.Material Standards:Food-grade rubber pipes must be made of rubber raw materials that meet relevant food safety standards, such as natural rubber, nitrile rubber, etc. These materials should be non-toxic, odorless, and do not migrate harmful substances into food.
2.Hygienic standards:Food-grade rubber pipes should meet relevant health standards, such as GB 9685 "Hygienic Standards for the Use of Auxiliaries for Food Containers and Packaging Materials". Hygienic conditions should be strictly controlled during the production process to ensure that the products are free of pollution.
3.Sensory indicators:The appearance of food-grade rubber tubing should be normal in color, no odor, no foreign matter. During use, no harmful odors and odors should be produced.
4.Physical and chemical indicators:The physical and chemical indexes of food-grade rubber pipes should meet relevant standards, such as tensile strength, elongation at break, hot air aging and other indicators. These indicators can reflect the mechanical properties and aging resistance of rubber tubing.
5.Accreditation Standards:Food-grade rubber hoses should pass relevant certifications, such as FDA (Food and Drug Administration) certification, EU (European Union) certification, etc. These certifications can prove that rubber tubing meets international food safety standards.
6.Restrictions on use:Food-grade rubber tubing should comply with relevant restrictions when using, such as use temperature, pressure, etc. Exceeding the limits may result in degraded tubing performance or the production of hazardous substances.
In conclusion, the standards for food-grade rubber hoses cover the aspects of materials, hygiene, organoleptic, physicochemical, certification and use restrictions, etc., aiming to ensure the safety and reliability of rubber hoses in the food field. When selecting and using food-grade rubber tubing, these standards should be paid attention to and relevant regulations should be followed.
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