A flame retardant hose is a flexible hose that resists fire. These hoses come in various types, such as rubber hoses, silicone fire sleeve hoses, and metal hoses. They’re high-end products, so their raw materials must meet strict standards. Let’s look at the details.
Inner Material of Flame Retardant Hoses
The inner layer of fire-resistant hoses usually uses PU or nitrile rubber as the main material. PU offers good wear resistance, oil resistance, and heat resistance. It works well with high-pressure, high-temperature media. Nitrile rubber, on the other hand, has strong oil resistance, wear resistance, and air tightness. It’s the best choice for oil products.
Outer Material
The outer layer of flame retardant hoses often uses natural rubber. Natural rubber has good elasticity, wear resistance, and weather resistance. Synthetic rubber, though, excels in oil resistance, wear resistance, and heat resistance.
Flame Retardants
During production, manufacturers add flame retardants to boost fire resistance. These include bromine-based, phosphorus-based, and nitrogen-based retardants. Bromine-based ones work well but may harm human health. Phosphorus-based ones are eco-friendly but can cause fire to spread. Nitrogen-based ones perform better, yet they cost more.
These are the material requirements for flame retardant hoses. Only high-quality hoses ensure smooth, reliable work. And only reliable suppliers provide such hoses. So if you need a flame retardant hose, choose a trustworthy supplier. We recommend Orientflex.