UL 1468
Standard for Direct Acting Pressure Reducing and Pressure Restricting Valves

DETAILS
Edition Number:5SCC Approved:--
Edition Date:2016-05-09DOD Approved: --
Price Code:AANSI Approved: 2018-04-13
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover direct-acting pressure-reducing and pressure restricting valves intended to reduce the water pressure in standpipe systems or in the supply piping for sprinkler systems. These requirements also cover pressure reducing valves that can be used as an indicating control valve in a sprinkler system.

    1.2 The valves covered by these requirements are intended for use in:

    a)    Standpipe systems installed in accordance with the Standard for Installation of Standpipe and Hose Systems, NFPA 14; or

    b)    Sprinkler systems installed in accordance with the Standard for Installation of Sprinkler Systems, NFPA 13.

    1.3 The valves covered by these requirements are intended to be inspected, tested and maintained in accordance with the Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, NFPA 25.

    1.4 Direct-acting pressure-reducing and pressure restricting valves covered by these requirements include the following patterns and sizes:

    a)    Angle Patterns for Standpipe Use – Inlet and outlet openings having nominal diameters of 1, 1-1/2, 2-1/2, or 3 NPS.

    b)    Angle Patterns for Sprinkler Systems – Sizes greater than 1 NPS.

    c)    Straightway Pattern for Standpipe Use – Inlet and outlet openings having nominal diameters of 1, 1-1/2, 2-1/2, or 3 NPS.

    d)    Straightway Patterns for Sprinkler Systems – Sizes greater than 1 NPS.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Units of Measurements
          • 4 Undated References
          • 5 Glossary
        • CONSTRUCTION
          • 6 General
          • 7 End Connections
          • 8 Rated Inlet Pressure
          • 9 Outlet Pressure Settings – Valves Intended for Sprinkler Systems
          • 10 Outlet Pressure Settings – Valves Intended for Standpipe System Outlets
          • 11 Bodies and Bonnets
          • 12 Body-Seat Rings
          • 13 Valve Stems
          • 14 Stuffing Boxes and Seals
          • 15 Handwheels
          • 16 Seat Rings, Discs, and Holders
          • 17 Valve Mechanisms
          • 18 Valve Adjustments
        • PERFORMANCE
          • 19 General
          • 20 10-Day Moist Ammonia Air Stress Cracking Test
          • 21 Elastomeric Parts (Except Gaskets) Test
          • 22 Operating Torque Test
            • 22.1 General
            • 22.2 Test procedure
          • 23 Spring Test
          • 24 Operation Test
            • 24.1 General
            • 24.2 Pressure restricting valves
            • 24.3 Pressure reducing valves
          • 25 Leakage Tests
            • 25.1 Seat leakage test
            • 25.2 Body leakage test
            • 25.3 Repacking test
          • 26 Strength of Body Test
          • 27 Mechanical Strength Test – Internal and External Valve Parts
          • 28 One-Year Static Leakage Test
          • 29 Electrically Operated Valve Monitor Switches
        • MANUFACTURING AND PRODUCTION TESTS
          • 30 General
        • MARKING
          • 31 General
        • INSTRUCTIONS
          • 32 Installation and Operating Instructions
    • Appendix A