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    Fire Suppression Devices

    Non return Valve

    Inert Suppression System

    Overview

    The Non-Return Valve (NRV) is for use in extinguishing systems to shield off IG-541 cylinders from backpressure activation. The valve is intended for use in back-up systems or multiple zone systems. It is designed with a venting mechanism, which prevents pressure to slowly accumulate on the inlet side when the valve is closed. The vent will be leak tight when the valve is fully open. The valve has three ports for additional equipment on the outlet side.

    Certifications:
    • UL & FM
    Others
    Name
    Description
    File Size
    Date
    Size
    Control Inert Extinguishing System Manual (EN)
    application/pdf 7.75 MB
    10/3/2024
    7.75 MB
    Name
    Description
    File Size
    Date
    Size
    Control Inert Extinguishing System Manual (EN)
    application/pdf 7.75 MB
    10/3/2024
    7.75 MB
    Name
    Description
    File Size
    Date
    Size
    Control Inert Extinguishing System Manual (EN)
    7.75 MB
    10/3/2024
    Product Number
    Part Number
    Description
    Leaf Category
    Thumbnail
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    H-305304
    Non Return valve 1ISO Ext-In
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16
    H-305304
    Non Return valve 1ISO Ext-In
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16
    H-305305
    Non Return Valve 1npt Ext-In
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16
    H-305305
    Non Return Valve 1npt Ext-In
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16
    H-305785-44
    NRV22 M40-M40 aisi316
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16
    H-305785-44
    NRV22 M40-M40 aisi316
    https://honeywell.scene7.com/is/image/Honeywell65/ba-fire-inert-image16