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    Back-Up Rings for HDPE Pipe Fittings, 304 Stainless

    These 304 stainless-steel back-up rings are designed for use in a variety of pipeline applications, including with HDPE butt fusion flange adapters. Sliding behind the collar of the flange adapter, they allow a variety of actuated valves and other butt fusion transition fittings to be securely installed within the pipeline. Their stainless-steel construction means they have excellent heat, corrosion, and chemical resistance. They bolt to other inline back-up rings or anchoring points. Great for use in countless applications!

    Fields of Application:
    • Agriculture and irrigation
    • Water transfer
    • Process Cooling Water
    • Industrial Water Treatment
    • Bulk Water Distribution
    • Fertilizer/chemical transfer
    • Pharmaceutical Manufacturing
    • Pulp and Paper Manufacturing
    • HVAC
    • Mining
    • Landfill
    • Power Generation
    • Semiconductor

    Standard Features:
    • Robust mechanical strength
    • High heat resistance
    • High impact resistance at very low temperatures
    • Excellent abrasion, corrosion, and chemical resistance
    • Ease of installation
    • Excellent cost to performance ratio



    0Types Available
    Picture of Backup Ring for FA3 Flange Adapter, 3", 304 Stainless
    Backup Ring for FA3 Flange Adapter, 3", 304 Stainless
    Backup Ring, 3IN, 304SS, Square x Square
    SKU: DPBR3SS
    VIEW CATALOG PAGE E0332
    $75.50 / EA
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    Picture of Backup Ring for FA4 Flange Adapter, 4", 304 Stainless
    Backup Ring for FA4 Flange Adapter, 4", 304 Stainless
    Backup Ring, 4IN, 304SS, Square x Square
    SKU: DPBR4SS
    VIEW CATALOG PAGE E0332
    $113.00 / EA
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    Picture of Backup Ring for FA6 Flange Adapter, 6", 304 Stainless
    Backup Ring for FA6 Flange Adapter, 6", 304 Stainless
    Backup Ring, 6IN, 304SS, Square x Square
    SKU: DPBR6SS
    VIEW CATALOG PAGE E0332
    $130.00 / EA
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    Picture of Backup Ring for FA112 Flange Adapter, 1-1/2", 304 Stainless
    Backup Ring for FA112 Flange Adapter, 1-1/2", 304 Stainless
    Backup Ring, 304SS, 1-1/2IN, Square x Square
    SKU: DPBR112SS
    VIEW CATALOG PAGE E0332
    $33.00 / EA
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    Picture of Backup Ring for FA4 Flange Adapter, 4", 304 Stainless, Beveled x Square Style
    Backup Ring for FA4 Flange Adapter, 4", 304 Stainless, Beveled x Square Style
    Backup Ring, 4IN, 304SS, Beveled x Square
    SKU: DPBR4SS-B
    VIEW CATALOG PAGE E0332
    $175.00 / EA
    i h
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    DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

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    Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

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    Picture of Backup Ring for FA2 Flange Adapter, 2", 304 Stainless
    Backup Ring for FA2 Flange Adapter, 2", 304 Stainless
    Backup Ring, 2IN, 304SS, Square x Square -- REG $52.00
    SKU: DPBR2SS
    VIEW CATALOG PAGE E0332
    $40.00 / EA
    i h
    Ship to

    DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

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    Picture of Backup Ring for FA2 Flange Adapter, 2", 304 Stainless, Beveled x Square Style
    Backup Ring for FA2 Flange Adapter, 2", 304 Stainless, Beveled x Square Style
    Backup Ring, 2IN, 304SS, Beveled x Square
    SKU: DPBR2SS-B
    VIEW CATALOG PAGE E0332
    $81.00 / EA
    i h
    Ship to

    DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

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    Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

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    Picture of Backup Ring for FA3 Flange Adapter, 3", 304 Stainless, Beveled x Square Style
    Backup Ring for FA3 Flange Adapter, 3", 304 Stainless, Beveled x Square Style
    Backup Ring, 3IN, 304SS, Beveled x Square
    SKU: DPBR3SS-B
    VIEW CATALOG PAGE E0332
    $116.00 / EA
    i h
    Ship to

    DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

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    Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

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    Picture of Backup Ring for FA8 Flange Adapter, 8", 304 Stainless
    Backup Ring for FA8 Flange Adapter, 8", 304 Stainless
    Backup Ring, 8IN, 304SS, Square x Square style
    SKU: DPBR8SS
    VIEW CATALOG PAGE E0332
    $172.00 / EA
    i h
    Ship to

    DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

    *

    Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

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