UL 1091A
Outline of Investigation for Butterfly Valve Indicator Posts for Fire Protection Service

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2006-12-07DOD Approved: --
Price Code:AANSI Approved: --
Type:outline

  • SCOPE

    1 Scope

    1.1 These requirements cover underground type indicator posts for use in operating butterfly valves and for indicating the position of such valves. Indicator posts are primarily intended for use with valves controlling water supplies to sprinkler deluge, water spray, foam and standpipe systems used in private fire service where connections enter buildings.

    1.2 Requirements for the installation and use of the indicator posts covered by this standard are included in the following Standards of the National Fire Protection Association:

    a)     Foam Extinguishing Systems, NFPA 11;

    b)     Medium and High Expansion Foam Systems, NFPA 11A;

    c)     The Installation of Sprinkler Systems, NFPA 13;

    d)     The Installation of Standpipe and Hose Systems, NFPA 14;

    e)     Water Spray Fixed Systems for Fire Protection, NFPA 15;

    f)     Deluge Foam-Water Sprinkler Systems and Foam-Water Spray Systems, NFPA 16;

    g)     The Installation of Centrifugal Fire Pumps, NFPA 20;

    h)     Water Tanks for Private Fire Protection, NFPA 22; and

    i)     Outside Protection, NFPA 24.

  • TABLE OF CONTENTS
    Expand All

    • Outline Title Page
    • Table of Contents
      • Body
        • GENERAL
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
        • CONSTRUCTION
          • 3 Barrels
          • 4 Caps
          • 5 Operating Stems – General
          • 6 Position Indicators
            • 6.1 General
            • 6.2 Rotating target mechanisms
            • 6.3 Vertically moving target mechanisms
          • 7 Extension Rods
          • 8 Wrenches
          • 9 Locking and Sealing
        • PERFORMANCE
          • 10 General
          • 11 Strength of Parts Test
        • MARKING
          • 12 General