The silicone fire sleeve is commonly used for hydraulic hoses because it provides excellent protection against extreme heat, flames, and molten splashes. Hydraulic hoses are often exposed to high temperatures and harsh environments, which can cause them to degrade and fail over time. 

By using a silicone fire sleeve, the hydraulic hose is protected from these damaging conditions, which can extend its lifespan and improve its overall performance. Additionally, the silicone fire sleeve is flexible and easy to install, making it a convenient and cost-effective solution for hydraulic hose protection.