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  1. What is a Post Indicator Valve (PIV) and Are They Required?

    Oct 29, 2020 · In short, post indicator valves (PIVs) are sturdy, above-ground access and operator valves used for automatic fire sprinkler systems and wet standpipe systems whose …

  2. What is a Post Indicator Valve - Common Location For PIV

    May 13, 2025 · In simple terms, a Post Indicator Valve is a control valve attached to a water supply line that feeds a building’s fire suppression system. Unlike underground valves hidden …

  3. UL/FM Indicator Posts | Mueller Co. Water Products Division

    Mueller® indicator posts are used in fire protection systems and perform several functions. They provide a means to operate a buried or otherwise inaccessible valve. Also, indicator posts …

  4. What Is a Post Indicator Valve and What Does It Do?

    A Post Indicator Valve (PIV) is a vital component in fire protection and water distribution systems, designed to clearly indicate whether an underground gate valve controlling water flow to a fire …

  5. Basic Info on Post-Indicator Valves (PIVs)

    Nov 29, 2024 · Also known as a Post-Indicator Hydrant (PIH) or Indicator Post Valve, its primary function is to control the flow of water from an underground water main to a fire hydrant, …

  6. UL FM Vertical Indicator Post - United Water Products

    It is used to identify the position of buried Gate Valves (Post Indicator Valves) and is recommended for use in fire protection piping systems.

  7. What is a Post Indicator Valve? PIV Valve Basics & Operation Guide

    At its simplest, a Post Indicator Valve (PIV) is a specialized valve assembly used to control the water supply to a building’s fire sprinkler or standpipe system.

  8. #365 – A Guide to Post Indicator Valve Requirements - QRFS

    Oct 6, 2020 · A post indicator valve allows firefighters to cut off supply to compromised areas, ensuring their efforts aren’t hampered by the loss of pressure, or water being diverted to the …

  9. Post-Indicator Valve: Required for My Project? - MeyerFire

    Jul 24, 2019 · The post-indicator valve has several important features - first is the ability to quickly shut the valve with use of the post indicator valve handle. The second is to quickly see …

  10. Post Indicator Valves (PIV)

    Indicator Posts are standard for use with left hand opening valves; however, they may be provided upon request with right hand opening valves or converted in the field for use with a right hand …