Underwriters Laboratories, Inc. (UL), UL 2443:
• Standard for flexible sprinkler hose with fittings for fire protection service
Factory Mutual (FM), FM Class No. 1637:
• Approved standard for flexible sprinkler hose with threaded end fittings
National Fire Protection Association (NFPA):
• NFPA 13: Standard for installation of sprinkler systems
• NFPA 13D: Standard for the installation of sprinkler systems in one- and two-family dwellings and manufactured homes
• NFPA 13R: Standard for installation of sprinkler systems in residential occupancies up to and including four stories in height
• NFPA 13 Section 17.4.1.3.3.3: Hangers are not required for flexible connections as long as the length does not exceed 6 ft.
American Society of Testing and Methods (ASTM):
• ASTM C635: Standard specifications for the manufacture, performance, and testing of metal suspension systems for acoustical tile and lay-in panel ceilings
• ASTM C636: Standard practice for installation of metal ceiling suspension systems for acoustical tile and lay-in panels
ASCE 7 13.5.6.2.2:
• Flexible sprinkler connections are the alternative solution to install without seismic escutcheons (Oops Ring)
Buy American Compliant
• Manufactured in Korea
