UL 1726
Standard for Automatic Drain Valves for Standpipe Systems

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2001-04-18DOD Approved: --
Price Code:AANSI Approved: --
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover automatic drain valves that are intended to drain water from cavities in standpipe systems intended usually to be empty, such as those between a hose valve and hose rack, and pipe sections between fire department connections and check valves.

    1.2 The valves covered by these requirements are intended for installation and use in accordance with the Standard for the Installation of Sprinkler Systems, ANSI/NFPA 13-1999, and The Standard for the Installation of Standpipe, Private Hydrant, and Hose Systems, ANSI/NFPA 14-2000.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
    • UL Foreword
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 Components
          • 4 Undated References
        • CONSTRUCTION
          • 5 General
          • 6 Valve Inlets
          • 7 Valve Outlets and Threads
        • PERFORMANCE
          • 8 Valve Closing Test
          • 9 Valve Opening Test
          • 10 Body Leakage Test
          • 11 Strength of Body Test
          • 12 Seat Leakage Test
          • 13 Pressure Cycling Test
        • MARKING
          • 14 General