UL 1474
Standard for Adjustable Drop Nipples for Sprinkler Systems

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2004-09-27DOD Approved: --
Price Code:DANSI Approved: --
Type:ulstd

  • SCOPE

    1 Scope

    1.1 This standard covers adjustable pipe nipples intended for use with sprinklers to permit adjustment of the distance of the sprinkler from the sprinkler system branch line.

    1.2 The products covered by this standard are intended for use in sprinkler systems installed in accordance with the Standard for Installation of Sprinkler Systems, NFPA 13; Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and including Four Stories in Height, NFPA 13R; and Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, NFPA 13D.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Unit of Measurements
          • 4 Undated References
        • CONSTRUCTION
          • 5 General
          • 6 Metallic Materials
        • PERFORMANCE
          • 7 Hydrostatic Pressure Test
          • 8 Mechanical Strength Test
          • 9 High Temperature Exposure Test
          • 10 Vibration Test
          • 11 Flow Characteristics
            • 11.1 Discharge coefficient
            • 11.2 Equivalent length
          • 12 Salt Spray Corrosion Test
          • 13 Elastomeric Parts Test
          • 14 Freezing Test
        • MARKING
          • 15 General
        • INSTRUCTIONS
          • 16 Installation Instructions