UL 2443 Standard for Flexible Sprinkler Hose with Fittings for Fire Protection Service has been revised to address historical questions regarding flexible sprinkler hoses. The new product standard now addresses maximum K-factors for sprinklers, new methods for determining friction loss and the maximum number of bends, and updates to marking requirements and installation instructions. Concurrently, NFPA 13 has proposed language to address installation requirements for flexible sprinkler hoses for the first time.
Upon completion of this webinar, participants will be able to:
- Determine the maximum number of bends permitted for a listed flexible sprinkler hose.
- Identify the correct equivalent length to use for hydraulic calculations.
- Identify the maximum K-factor sprinkler permitted to be installed on a specific flexible sprinkler hose.
- Determine the maximum length for flexible sprinkler hoses permitted by NFPA 13 based on the ceiling type.
Speaker: Kevin Hall, M.Eng., P.E., ET, CWBSP, PMSFPE
Kevin Hall, M.Eng., P.E., ET, CWBSP, PMSFPE, is the coordinator of engineering and technical services for the American Fire Sprinkler Association (AFSA). He is a member of, and involved in, several National Fire Protection Association (NFPA) technical committees responsible for developing the model codes and standards including, NFPA 1 Fire Code, NFPA 13/13R/13D Installation of Sprinkler Systems, NFPA 20 Installation of Stationary Fire Pumps for Fire Protection, NFPA 30 Flammable and Combustible Liquids Code, and NFPA 915 Remote Inspections. He also represents AFSA on numerous UL standard technical panels responsible for revising and maintaining the product standards used in the sprinkler industry. He is a registered professional engineer in Delaware and Maryland, NICET III certified in water-based system layout, a Certified Water-Based System Professional (NFPA), and a professional member of the Society of Fire Protection Engineers. He earned his Bachelor of Science and Master of Engineering degrees from the University of Maryland, College Park in fire protection engineering. Prior to his association and committee work, he worked for Reliance Fire Protection in Baltimore, Maryland as a project manager overseeing projects of various sizes and complexity for the Contracts Division.