This specialized cooling water hose is engineered for the most demanding industrial environments, ensuring reliable performance in steel metallurgy, transformer cooling systems, and electrical converters. Its inner layer, made of light blue insulating EPDM rubber, provides exceptional dielectric properties with resistance greater than 10^11 Ω and electrical breakdown strength of at least 6000 V/mm, guaranteeing maximum safety in high-voltage applications. Reinforced with a durable synthetic cord, the hose withstands working pressures up to 20 bar while maintaining flexibility, with the minimum bending radius specified for pressures above 3 bar. The outer layer, crafted from EPDM rubber and coated with high-quality fiberglass, delivers outstanding protection against heat radiation up to +550°C (temporary) and shields against splashes of molten or hot materials, making it ideal for extreme operating conditions. Resistant to water and steam penetration, this hose ensures long-lasting durability and uninterrupted operation even under thermal and mechanical stress. With an operating temperature range from -35°C to +120°C and external resistance up to +550°C, it represents a highly reliable solution for industries where safety, efficiency, and resilience are critical.