UL Fire Pipe Certification is issued by Underwriters Laboratories (UL) , to ensure the safety and reliability of YOUFA brand fire pipeline products, which are complied with strict ASTMA795 and ASTMA53 standards. USL, CNL – Steel Sprinkler PipeSchedule 10 steel sprinkler pipe, plain, painted, or galvanized finish in the 3/4 ,1, 1-1/4, 1-1/2, 2, 2-1/2, 3, 4, 5, 6, 8 and 10 inch sizes, as per ASTM A795, Grade B, Type E (with mechanical properties in accordance with ASTM A53).
Schedule 40 steel sprinkler pipe, plain, painted, or galvanized finish in the 1/2, 3/4 ,1, 1-1/4, 1-1/2, 2, 2-1/2, 3, 4, 5, 6, 8, 10 and 12 in sizes, as per ASTM A53, Grade B, Type E.ENGINEERING CONSIDERATIONS:
USL - Indicates investigation in accordance with the US Certification
requirements.
CNL - Indicates investigation in accordance with the Canadian Certification
requirements.UL certification ensure YOUFA brand product quality and performance and reducing the risk of pipeline failure in the event of a fire. Enhance customer trust in YOUFA brand steel pipes and improve brand image.
Oct 14,2025