UL 448A
Standard for Flexible Couplings and Connecting Shafts for Stationary Fire Pumps

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2008-12-23DOD Approved: --
Price Code:AANSI Approved: 2017-09-22
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover flexible couplings and flexible connecting shafts intended to connect the shaft of a stationary fire pump to a fire pump driver.

    1.2 Flexible couplings and flexible connecting shafts covered by this standard are intended for installation and use in accordance with the Standard for Installation of Stationary Pumps for Fire Protection, NFPA 20.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Units of Measurement
          • 4 Undated References
          • 5 Glossary
        • CONSTRUCTION
          • 6 General
          • 7 Sizes
          • 8 Hubs and Power Transmission Components
          • 9 Drive Mechanisms
          • 10 Flexible Connecting Shaft Bearings
          • 11 Fasteners
        • PERFORMANCE
          • 12 General
          • 13 Endurance and Starting Cycle
            • 13.1 General
            • 13.2 Flexible coupling test method
            • 13.3 Flexible connecting shaft method
          • 14 Aging Tests, Polymeric Materials
        • MANUFACTURING AND PRODUCTION TESTS
          • 15 General
        • MARKINGS
          • 16 General
        • INSTALLATION INSTRUCTIONS
          • 17 Installation Instructions