3/8" standard high-quality fire valve 3/8"/ 10mm Wheelhead Valve All brass fusible head fire valve. 3/8" Standard Fire Valve The 3/8" Standard Fire Valve is designed as a fire safety shut-off valve for use on oil-burning equipment. This can be safeguarded against the risk of fuel being fed into a fire originating elsewhere than in the heating appliance (most fires in the home are of this type) and also against the risk of fire due to over-temperature of the oil-burning equipment.This valve can maintain its pressure containing ability during and after a certain period of fire exposing. Isolates the downstream supply of oil by turning the handwheel to the off position. Features This standard fire valve is a time saving and economical installation. This is a top-quality all-brass construction Fusible Head Fire Valve. Top of the line for fire preventive measures.