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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 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
    $35.50 / 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, Flat Face x Flat Face
    $52.00 / 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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    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 Flat
    $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).

    *

    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
    Backup Ring for FA3 Flange Adapter, 3", 304 Stainless
    Backup Ring, 3IN, 304SS, Flat Face x Flat Face
    $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).

    *

    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 Flat Face
    $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).

    *

    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 FA4 Flange Adapter, 4", 304 Stainless
    Backup Ring for FA4 Flange Adapter, 4", 304 Stainless
    Backup Ring, 4IN, 304SS, Flat Face x Flat Face
    $119.00 / 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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    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 Flat Face
    $175.00 / 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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    Picture of Backup Ring for FA6 Flange Adapter, 6", 304 Stainless
    Backup Ring for FA6 Flange Adapter, 6", 304 Stainless
    Backup Ring, 6IN, 304SS, Flat Face x Flat Face
    $138.00 / 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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    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
    $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).

    *
    *
    *
    Shipping Method
    Name
    Estimated Delivery
    Price
    No shipping options