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    162 Products

    High-Temperature Metallic Pipe Gaskets

    Image of ProductInUse. Gasket Shown with a Flat-Surface Pipe Flange. Front orientation. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets.
    Image of ProductInUse. Gasket Shown with a Raised-Surface Pipe Flange. Front orientation. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets.

    Gasket Shown

    with a

    Flat-Surface

    Pipe Flange

    Gasket Shown with

    a Raised-Surface

    Pipe Flange

    Also known as spiral-wound gaskets, these have a 1/8” thick carbon steel outer ring and a 304 stainless steel sealing element with a graphite-based filler. The carbon steel construction provides structural strength. These gaskets can be used with both flat-surface and raised-surfaces pipe flanges; they fit the surface inside the bolt holes and do not interfere with the bolt connection.
    Plain-Back Gaskets for ANSI Flanges
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets, Plain-Back Gaskets for ANSI Flanges, For ANSI Class 150.
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets, Plain-Back Gaskets for ANSI Flanges, For ANSI Class 300.
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets, Plain-Back Gaskets for ANSI Flanges, For ANSI Class 600.
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets, Plain-Back Gaskets for ANSI Flanges, For ANSI Class 1500.

    For ANSI Class 150

    For ANSI Class 300

    For ANSI Class 600

    For ANSI Class 1500

    Gaskets for ANSI flanges are sized so all gasket specifications meet ANSI standards.
    For ANSI Class 150—Gaskets for ANSI Class 150 flanges are compatible with low-pressure pipe flanges.
    For ANSI Class 300—Gaskets for ANSI Class 300 flanges are compatible with medium-pressure pipe flanges.
    For ANSI Class 600—Gaskets for ANSI Class 600 flanges are compatible with high-pressure pipe flanges.
    For ANSI Class 1500—Gaskets for ANSI Class 1500 flanges are compatible with extreme-pressure pipe flanges.
    Inner Ring ID—Gaskets with an inner ring prevent flange erosion.
    Sealing
    Element
    1/8" Thick
    For Pipe
    Size
    ID
    OD
    OD
    Wd.
    Inner Ring
    ID
    Max.
    Pressure
    Temp. Range,
    ° F
    Material
    Sealing Element
    Material
    Sealing Element
    Filler Material
    Inner Ring
    Material
    Specs. Met
    Each
    For ANSI Class 150
    1/2
    3/4"1 7/8"1 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K15100000
    3/4
    1"2 1/4"1 9/16"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1520000
    1
    1 1/4"2 5/8"1 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1530000
    1 1/4
    1 7/8"3"2 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1540000
    1 1/2
    2 1/8"3 3/8"2 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1550000
    2
    2 3/4"4 1/8"3 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1560000
    2 1/2
    3 1/4"4 7/8"3 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1570000
    3
    4"5 3/8"4 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K15800000
    4
    5"6 7/8"5 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K15900000
    5
    6 1/8"7 3/4"7"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K16100000
    6
    7 3/16"8 3/4"8 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K16200000
    8
    9 3/16"11"10 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K16300000
    10
    11 5/16"13 3/8"12 1/2"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K16400000
     
    For ANSI Class 300
    1/2
    3/4"2 1/8"1 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1710000
    3/4
    1"2 5/8"1 9/16"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1720000
    1
    1 1/4"2 7/8"1 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1730000
    1 1/4
    1 7/8"3 1/4"2 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1740000
    1 1/2
    2 1/8"3 3/4"2 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1750000
    2
    2 3/4"4 3/8"3 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1760000
    2 1/2
    3 1/4"5 1/8"3 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K1770000
    3
    4"5 7/8"4 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K17800000
    4
    5"7 1/8"5 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K17900000
    5
    6 1/8"8 1/2"7"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K18100000
    6
    7 3/16"9 7/8"8 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K18200000
     
    For ANSI Class 600
    1/2
    3/4"2 1/8"1 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5110000
    3/4
    1"2 5/8"1 9/16"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5120000
    1
    1 1/4"2 7/8"1 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5430000
    1 1/4
    1 7/8"3 1/4"2 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5140000
    1 1/2
    2 1/8"3 3/4"2 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5150000
    2
    2 3/4"4 3/8"3 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5160000
    2 1/2
    3 1/4"5 1/8"3 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K5170000
    3
    4"5 7/8"4 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K51800000
    3 1/2
    4 1/8"6 3/8"5 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K51900000
    4
    4 3/4"7 5/8"5 7/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52100000
    5
    5 13/16"9 1/2"7"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52200000
    6
    6 7/8"10 1/2"8 1/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52300000
    8
    8 7/8"12 5/8"10 3/8"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52400000
    10
    10 13/16"15 3/4"12 1/2"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52500000
    12
    12 7/8"18"14 3/4"0.175"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    GraphiteASME B16.2044955K52600000
     
    For ANSI Class 1500
    1/2
    3/4"2 1/2"1 1/4"0.175"0.56"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61100000
    3/4
    1"2 3/4"1 9/16"0.175"0.81"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61200000
    1
    1 1/4"3 1/8"1 7/8"0.175"1.06"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61300000
    1 1/4
    1 9/16"3 1/2"2 3/8"0.175"1.31"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61400000
    1 1/2
    1 7/8"3 7/8"2 3/4"0.175"1.63"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61500000
    2
    2 5/16"5 5/8"3 3/8"0.175"2.06"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61600000
    2 1/2
    2 3/4"6 1/2"3 7/8"0.175"2 1/2"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K61700000
    3
    3 5/8"6 7/8"4 3/4"0.175"3.10"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K62800000
    4
    4 5/8"8 1/4"5 7/8"0.175"3.85"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K62100000
    5
    5 5/8"10"7"0.175"4.90"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K62200000
    6
    6 3/4"11 1/8"8 1/4"0.175"5.80"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K623000000
    8
    8 1/2"13 7/8"10 1/8"0.175"7 3/4"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K624000000
    10
    10 1/2"17 1/8"12 1/4"0.175"9.69"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K625000000
    12
    12 3/4"20 1/2"14 1/2"0.175"11 1/2"Not Rated-50 to 840Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    ASME B16.2044955K626000000
     
    Plain-Back Gaskets for DN Flanges
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. High-Temperature Metallic Pipe Gaskets, Plain-Back Gaskets for DN Flanges.
    Gaskets for DN flange sizes are sized to fit pressure class PN16 flanges.
    Inner Ring ID—Gaskets with an inner ring prevent flange erosion.
    1/8" Thick
    For DN
    Size
    ID,
    mm
    OD,
    mm
    Sealing Element
    OD, mm
    Inner Ring
    ID, mm
    Max.
    Pressure
    Max. Temp.,
    ° F
    Material
    Sealing Element
    Material
    Sealing Element
    Filler Material
    Inner Ring
    Material
    Each
    2540715434.00Not Rated975Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    1106N711000000
    50661078457.00Not Rated975Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    1106N71200000
    809514211986.00Not Rated975Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    1106N71300000
    100120162144108.00Not Rated975Carbon Steel304 Stainless Steel
    Graphite304 Stainless Steel
    1106N71400000
     

    High-Temperature Graphite Pipe Gaskets with Bolt Holes

    Image of ProductInUse. Front orientation. Pipe Gaskets. High-Temperature Graphite Pipe Gaskets with Bolt Holes.
    Able to withstand temperatures up to 750° F, these graphite gaskets have a stainless steel insert for strength to handle pressure up to 1,000 psi. Commonly called full-face gaskets, they cover the entire face of flat-surface pipe flanges and align with the bolt holes. All gaskets are sized to meet ANSI standards.
    Plain-Back Gaskets for ANSI Flanges
    For ANSI Class 150—Gaskets for ANSI Class 150 flanges are compatible with low-pressure pipe flanges.
    For ANSI Class 300—Gaskets for ANSI Class 300 flanges are compatible with medium-pressure pipe flanges.
    For ANSI Class 600—Gaskets for ANSI Class 600 flanges are compatible with high-pressure pipe flanges.
    1/16" Thick
    For Pipe
    Size
    ID
    OD
    No. of Bolt
    Holes
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Color
    Each
    For ANSI Class 150
    3/4
    1 1/16"3 7/8"41,000-325 to 750Gray94095K8200000
    1
    1 5/16"4 1/4"41,000-325 to 750Gray94095K830000
    1 1/4
    1 21/32"4 5/8"41,000-325 to 750Gray94095K840000
    1 1/2
    1 29/32"5"41,000-325 to 750Gray94095K850000
    2
    2 3/8"6"41,000-325 to 750Gray94095K860000
    2 1/2
    2 7/8"7"41,000-325 to 750Gray94095K8700000
    3
    3 1/2"7 1/2"41,000-325 to 750Gray94095K8800000
    3 1/2
    4"8 1/2"81,000-325 to 750Gray94095K8900000
    4
    4 1/2"9"81,000-325 to 750Gray94095K9100000
    5
    5 9/16"10"81,000-325 to 750Gray94095K9200000
    6
    6 5/8"11"81,000-325 to 750Gray94095K9300000
    8
    8 5/8"13 1/2"81,000-325 to 750Gray94095K9400000
    10
    10 3/4"16"121,000-325 to 750Gray94095K9500000
    12
    12 3/4"19"121,000-325 to 750Gray94095K9600000
     
    For ANSI Class 300
    1
    1 5/16"4 7/8"41,000-325 to 750Gray94095K670000
    1 1/2
    1 29/32"6 1/8"41,000-325 to 750Gray94095K680000
    2
    2 3/8"6 1/2"81,000-325 to 750Gray94095K6900000
    2 1/2
    2 7/8"7 1/2"81,000-325 to 750Gray94095K8100000
    3
    3 1/2"8 1/4"81,000-325 to 750Gray94095K7900000
    4
    4 1/2"10"81,000-325 to 750Gray94095K5200000
    6
    6 5/8"12 1/2"121,000-325 to 750Gray94095K5400000
    8
    8 5/8"15"121,000-325 to 750Gray94095K14100000
     
    For ANSI Class 600
    1
    1 5/16"4 7/8"41,000-325 to 750Gray94095K1420000
    1 1/2
    1 29/32"6 1/8"41,000-325 to 750Gray94095K1430000
    2
    2 3/8"6 1/2"81,000-325 to 750Gray94095K14400000
    2 1/2
    2 7/8"7 1/2"81,000-325 to 750Gray94095K14500000
    3
    3 1/2"8 1/4"81,000-325 to 750Gray94095K14600000
    4
    4 1/2"10 3/4"81,000-325 to 750Gray94095K14700000
    5
    5 9/16"13"81,000-325 to 750Gray94095K14800000
    6
    6 5/8"14"121,000-325 to 750Gray94095K14900000
    8
    8 5/8"16 1/2"121,000-325 to 750Gray94095K15100000
     

    High-Temperature Graphite Pipe Gaskets

    Image of ProductInUse. Front orientation. Pipe Gaskets. High-Temperature Graphite Pipe Gaskets.
    Able to withstand temperatures up to 750° F, these graphite gaskets have a stainless steel insert for strength to handle pressure up to 1,000 psi. Also known as ring gaskets, use them with raised-surface pipe flanges; they fit the surface inside the bolt holes and do not interfere with the bolt connection. All gaskets are sized to meet ANSI standards.
    Plain-Back Gaskets for ANSI Flanges
    For ANSI Class 150—Gaskets for ANSI Class 150 flanges are compatible with low-pressure pipe flanges.
    For ANSI Class 300—Gaskets for ANSI Class 300 flanges are compatible with medium-pressure pipe flanges.
    For ANSI Class 600—Gaskets for ANSI Class 600 flanges are compatible with high-pressure pipe flanges.
    For ANSI Class 1500—Gaskets for ANSI Class 1500 flanges are compatible with extreme-pressure pipe flanges.
    1/16" Thick
    For Pipe
    Size
    ID
    OD
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Color
    Each
    For ANSI Class 150
    1/2
    27/32"1 7/8"1,000-325 to 750Gray94095K4100000
    3/4
    1 1/16"2 1/4"1,000-325 to 750Gray94095K420000
    1
    1 5/16"2 5/8"1,000-325 to 750Gray94095K430000
    1 1/4
    1 21/32"3"1,000-325 to 750Gray94095K440000
    1 1/2
    1 29/32"3 3/8"1,000-325 to 750Gray94095K450000
    2
    2 3/8"4 1/8"1,000-325 to 750Gray94095K460000
    2 1/2
    2 7/8"4 7/8"1,000-325 to 750Gray94095K470000
    3
    3 1/2"5 3/8"1,000-325 to 750Gray94095K480000
    4
    4 1/2"6 7/8"1,000-325 to 750Gray94095K610000
    5
    5 9/16"7 3/4"1,000-325 to 750Gray94095K6200000
    6
    6 5/8"8 3/4"1,000-325 to 750Gray94095K6300000
    8
    8 5/8"11"1,000-325 to 750Gray94095K6400000
    10
    10 3/4"13 3/8"1,000-325 to 750Gray94095K6500000
    12
    12 3/4"16 1/8"1,000-325 to 750Gray94095K6600000
     
    For ANSI Class 300
    1
    1 5/16"2 7/8"1,000-325 to 750Gray94095K710000
    1 1/2
    1 29/32"3 3/4"1,000-325 to 750Gray94095K730000
    2
    2 3/8"4 3/8"1,000-325 to 750Gray94095K740000
    2 1/2
    2 7/8"5 1/8"1,000-325 to 750Gray94095K750000
    3
    3 1/2"5 7/8"1,000-325 to 750Gray94095K760000
    4
    4 1/2"7 1/8"1,000-325 to 750Gray94095K7700000
    6
    6 5/8"9 7/8"1,000-325 to 750Gray94095K7800000
    8
    8 5/8"12 1/8"1,000-325 to 750Gray94095K11100000
     
    For ANSI Class 600
    1/2
    27/32"2 1/8"1,000-325 to 750Gray94095K1120000
    3/4
    1 1/16"2 5/8"1,000-325 to 750Gray94095K1130000
    1
    1 5/16"2 7/8"1,000-325 to 750Gray94095K1140000
    1 1/4
    1 21/32"3 1/4"1,000-325 to 750Gray94095K1150000
    1 1/2
    1 29/32"3 3/4"1,000-325 to 750Gray94095K1160000
    2
    2 3/8"4 3/8"1,000-325 to 750Gray94095K1170000
    2 1/2
    2 7/8"5 1/8"1,000-325 to 750Gray94095K1180000
    3
    3 1/2"5 7/8"1,000-325 to 750Gray94095K1190000
    4
    4 1/2"7 5/8"1,000-325 to 750Gray94095K12100000
    5
    5 9/16"9 1/2"1,000-325 to 750Gray94095K12200000
    6
    6 5/8"10 1/2"1,000-325 to 750Gray94095K12300000
    8
    8 5/8"12 5/8"1,000-325 to 750Gray94095K12400000
    12
    12 3/4"18"1,000-325 to 750Gray94095K12500000
     
    For ANSI Class 1500
    2
    2 3/8"5 5/8"1,000-325 to 750Gray94095K1260000
    3
    3 1/2"7 1/8"1,000-325 to 750Gray94095K12700000
    4
    4 1/2"8 1/8"1,000-325 to 750Gray94095K12800000
     

    Easy-Install High-Temperature Metallic Pipe Gaskets

    Image of ProductInUse. Front orientation. Pipe Gaskets. Easy-Install High-Temperature Metallic Pipe Gaskets.
    Instead of bolt holes, these gaskets have tines that easily fit around flange bolts to ensure they’re properly aligned with pipe openings. The tine design also means you won’t have to retorque the flange for alignment, saving time. These gaskets are half as thick as our other metallic gaskets, so they're easier to slip in between flanges. Made from 304 stainless steel, these gaskets add structural strength. They also withstand high temperatures, making them a good option for extreme environments. Because these don't have bolt holes, they work with multiple ANSI Class designations, so they're compatible with low-, medium-, and high-pressure pipe flanges.
    Plain-Back Gaskets for ANSI Flanges
    1/16" Thick
    For Pipe
    Size
    ID
    OD
    Compressed
    Thk.
    Sealing
    Element OD
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Material
    Sealing Element
    Material
    Sealing Element
    Filler Material
    Each
    For ANSI Class 150, 300, 600, 1500, and 2500
    1
    1 5/32"4 5/8"0.024"2.61"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1100000
    1 1/2
    2 1/32"3 3/8"0.024"2.59"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1200000
    2
    2 7/16"4 1/8"0.024"3.26"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1300000
    3
    3 5/8"5 3/8"0.024"4.56"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1400000
    4
    4 3/4"6 7/8"0.024"5.7"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1500000
    6
    6 15/16"8 3/4"0.024"7.82"5,000-325 to 930304 Stainless Steel
    304 Stainless Steel
    Graphite4484N1600000
     

    Long-Life High-Temperature Metallic Pipe Gaskets

    A space between the outer ring and the sealing element prevents the element from being squeezed inward and contaminating the process line. Also known as spiral-wound gaskets, these have a 1/8” thick carbon steel outer ring and a 304 stainless steel sealing element with a graphite-based filler. The carbon steel construction of these gaskets provides structural strength. They compensate for flange movement caused by vibration and pressure. These gaskets can be used on both flat-surface and raised-surface pipe flanges; they fit inside the bolt holes and do not interfere with the bolt connections. All gasket specifications are sized to meet ANSI standards.
    Plain-Back Gaskets for ANSI Flanges
    Image of ProductInUse. Gasket Shown with a Flat-Surface Pipe Flange. Front orientation. Pipe Gaskets. Long-Life High-Temperature Metallic Pipe Gaskets.
    Image of ProductInUse. Gasket Shown with a Raised-Surface Pipe Flange. Front orientation. Pipe Gaskets. Long-Life High-Temperature Metallic Pipe Gaskets.
    Image of Product. Front orientation. Contains Annotated. Pipe Gaskets. Long-Life High-Temperature Metallic Pipe Gaskets.

    Gasket Shown

    with a

    Flat-Surface

    Pipe Flange

    Gasket Shown with

    a Raised-Surface

    Pipe Flange

    For ANSI Class 150—Gaskets for ANSI Class 150 flanges are compatible with low-pressure pipe flanges.
    For ANSI Class 300—Gaskets for ANSI Class 300 flanges are compatible with medium-pressure pipe flanges.
    Sealing
    Element
    1/8" Thick
    For Pipe
    Size
    ID
    OD
    OD
    Wd.
    Max.
    Pressure
    Temp. Range,
    ° F
    Material
    Sealing Element
    Material
    Sealing Element
    Filler Material
    Each
    For ANSI Class 150
    1/2
    3/4"1 7/8"1.328"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T11000000
    3/4
    1"2 1/4"1.594"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1200000
    1
    1 1/4"2 5/8"1.859"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1300000
    1 1/4
    1 9/16"3"2.063"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3100000
    1 1/2
    1 3/4"3 3/8"2.469"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1400000
    2
    2 3/8"4 1/8"3.063"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1500000
    2 1/2
    2 7/8"4 7/8"3.563"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1600000
    3
    3 5/8"5 3/8"4.438"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1700000
    3 1/2
    4 1/8"6 3/8"4.859"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3200000
    4
    4 5/8"6 7/8"5.563"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1800000
    5
    5 47/64"7 3/4"6.609"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3300000
    6
    6 13/16"8 3/4"7.938"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T1900000
    8
    8 13/16"11"10"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T34000000
    10
    10 59/64"13 3/8"12.422"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T35000000
    12
    13"16 1/8"14.359"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T36000000
     
    For ANSI Class 300
    1/2
    3/4"2 1/8"1.328"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2100000
    3/4
    1"2 5/8"1.594"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2200000
    1
    1 1/4"2 7/8"1.859"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2300000
    1 1/4
    1 9/16"3 1/4"2.063"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3700000
    1 1/2
    1 3/4"3 3/4"2.469"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2400000
    2
    2 3/8"4 3/8"3.063"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2500000
    2 1/2
    2 7/8"5 1/8"3.563"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2600000
    3
    3 5/8"5 7/8"4.438"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2700000
    3 1/2
    4 1/8"6 1/2"4.859"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3800000
    4
    4 5/8"7 1/8"5.563"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2800000
    5
    5 47/64"8 1/2"6.609"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T3900000
    6
    6 13/16"9 7/8"7.938"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T2900000
    8
    8 13/16"12 1/8"10"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T41000000
    10
    10 59/64"14 1/4"12.422"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T42000000
    12
    13"16 5/8"14.359"0.175"Not Rated-40 to 850Carbon Steel304 Stainless Steel
    Graphite3815T43000000
     
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