Profile: Youngstown Tube Co. develops steel sprinkler pipes and tubing for the fire protection industry. We supply a full line of UL, CUL and FM approved steel sprinkler pipes. Our pipes are manufactured to ASTM A-135/A-795 standards. We deliver a threadable schedule 30 pipe (EZ-Thread) in sizes 1"-2", as well as a schedule 7 pipe (Fire-Flo) in sizes 1 1/2"-4". We also manufacture custom lengths (18'-25') with plain or grooved ends.