Steel Interflange Check Valve ZO for Backflow Prevention in Industrial Pipelines

They are intended for installation in order to prevent reverse flow of working medium on technological pipelines of general industrial purpose, metallurgical, oil, gas, petrochemical, oil refining, explosion and fire hazardous and chemically hazardous, food industries, at enterprises of construction complex, in public utilities, in fire-fighting systems, heat and water supply, as well as steam and hot water pipelines and other areas of application.