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    Bolting Standard To Flange

    Uploaded by

    Larry Bea
    The document contains specifications for pipe flanges of various nominal pipe sizes (NPS), including the diameter of the flange, number of bolts, diameter of bolts, and bolt circle for pipe flange classes 150, 300, 400, 600, 900, 1500, 2500. It provides this information for NPS sizes ranging from 1/4 to 24 inches.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd

    Bolting Standard To Flange

    Uploaded by

    Larry Bea
    121 views14 pages
    The document contains specifications for pipe flanges of various nominal pipe sizes (NPS), including the diameter of the flange, number of bolts, diameter of bolts, and bolt circle for pipe flange classes 150, 300, 400, 600, 900, 1500, 2500. It provides this information for NPS sizes ranging from 1/4 to 24 inches.

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    Original Title

    Bolting Standard to Flange

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    © © All Rights Reserved

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    The document contains specifications for pipe flanges of various nominal pipe sizes (NPS), including the diameter of the flange, number of bolts, diameter of bolts, and bolt circle for pipe flange classes 150, 300, 400, 600, 900, 1500, 2500. It provides this information for NPS sizes ranging from 1/4 to 24 inches.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    121 views14 pages

    Bolting Standard To Flange

    Uploaded by

    Larry Bea
    The document contains specifications for pipe flanges of various nominal pipe sizes (NPS), including the diameter of the flange, number of bolts, diameter of bolts, and bolt circle for pipe flange classes 150, 300, 400, 600, 900, 1500, 2500. It provides this information for NPS sizes ranging from 1/4 to 24 inches.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 14

    2500.

    Class 150
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    1/4

    3-3/8

    1/2

    2-1/4

    1/2

    3-1/2

    1/2

    2-3/8

    3/4

    3-7/8

    1/2

    2-3/4

    4-1/4

    1/2

    3-1/8

    1-1/4

    4-5/8

    1/2

    3-1/2

    1-1/2

    1/2

    3-7/8

    5/8

    4-3/4

    2-1/2

    5/8

    5-1/2

    7-1/2

    5/8

    3-1/2

    8-1/2

    5/8

    Class 150
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    5/8

    7-1/2

    10

    3/4

    8-1/2

    11

    3/4

    9-1/2

    13-1/2

    3/4

    11-3/4

    10

    16

    12

    7/8

    14-1/4

    12

    19

    12

    7/8

    17

    14

    21

    12

    18-3/4

    16

    23-1/2

    16

    21-1/4

    18

    25

    16

    1-1/8

    22-3/4

    20

    27-1/2

    20

    1-1/8

    25

    24

    32

    20

    1-1/4

    29-1/2

    Class 300
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    1/4

    3-3/8

    1/2

    2-1/4

    1/2

    3-3/4

    1/2

    2-5/8

    3/4

    4-5/8

    5/8

    3-1/4

    4-7/8

    5/8

    3-1/2

    1-1/4

    5-1/4

    5/8

    3-7/8

    1-1/2

    6-1/8

    3/4

    4-1/2

    6-1/2

    5/8

    2-1/2

    7-1/2

    3/4

    5-7/8

    8-1/4

    3/4

    6-5/8

    3-1/2

    3/4

    7-1/4

    10

    3/4

    7-7/8

    Class 300
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    11

    3/4

    9-1/4

    12-1/2

    12

    3/4

    10-5/8

    15

    12

    7/8

    13

    10

    17-1/2

    16

    15-1/4

    12 (300)

    20-1/2

    16

    1-1/8

    17-3/4

    14 (350)

    23

    20

    1-1/8

    20-1/4

    16 (400)

    25-1/2

    20

    1-1/4

    22-1/2

    18

    28

    24

    1-1/4

    24-3/4

    20

    30-1/2

    24

    1-1/4

    27

    24

    36

    24

    1-1/2

    32

    Nominal Pipe Size

    Class 400

    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    1/4

    3-3/8

    1/2

    2-1/4

    1/2

    3-3/4

    1/2

    2-5/8

    3/4

    4-5/8

    5/8

    3-1/4

    4-7/8

    5/8

    3-1/2

    1-1/4

    5-1/4

    5/8

    3-7/8

    1-1/2

    6-1/8

    3/4

    4-1/2

    6-1/2

    5/8

    2-1/2

    7-1/2

    3/4

    5-7/8

    8-1/4

    3/4

    6-5/8

    3-1/2

    7/8

    7-1/4

    10

    7/8

    7-7/8

    11

    7/8

    9-1/4

    Class 400
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    12-1/2

    12

    7/8

    10-5/8

    15

    12

    13

    10

    17-1/2

    16

    1-1/8

    15-1/4

    12

    20-1/2

    16

    1-1/4

    17-3/4

    14

    23

    20

    1-1/4

    20-1/4

    16

    25-1/2

    20

    1-3/8

    22-1/2

    18

    28

    24

    1-3/8

    24-3/4

    20

    30-1/2

    24

    1-1/2

    27

    24

    36

    24

    1-3/4

    32

    Nominal Pipe Size

    Class 600

    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    1/4

    3-3/8

    1/2

    2-1/4

    1/2

    3-3/4

    1/2

    2-5/8

    3/4

    4-5/8

    5/8

    3-1/4

    4-7/8

    5/8

    3-1/2

    1-1/4

    5-1/4

    5/8

    3-7/8

    1-1/2

    6-1/8

    3/4

    4-1/2

    6-1/2

    5/8

    2-1/2

    7-1/2

    3/4

    5-7/8

    8-1/4

    3/4

    6-5/8

    3-1/2

    7/8

    7-1/4

    10-3/4

    7/8

    8-1/2

    13

    10-1/2

    Class 600
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    14

    12

    11-1/2

    16-1/2

    12

    1-1/8

    13-3/4

    10

    20

    16

    1-1/4

    17

    12

    22

    20

    1-1/4

    19-1/4

    14

    23-3/4

    20

    1-3/8

    20-3/4

    16

    27

    20

    1-1/2

    23-3/4

    18

    29-1/4

    20

    1-5/8

    25-3/4

    20

    32

    24

    1-5/8

    28-1/2

    24

    37

    24

    1-7/8

    33

    Nominal Pipe Size

    Class 900

    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    1/2

    4-3/4

    3/4

    3-1/4

    3/4

    5-1/8

    3/4

    3-1/2

    5-7/8

    7/8

    1-1/4

    6-1/4

    7/8

    4-3/8

    1-1/2

    4-7/8

    8-1/2

    7/8

    6-1/2

    2-1/2

    9-5/8

    7-1/2

    9-1/2

    7/8

    7-1/2

    11-1/2

    1-1/8

    9-1/4

    13-3/4

    1-1/4

    11

    15

    12

    1-1/8

    12-1/2

    18-1/2

    12

    1-3/8

    15-1/2

    Class 900
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    10

    21-1/2

    16

    1-3/8

    18-1/2

    12

    24

    20

    1-3/8

    21

    14

    25-1/4

    20

    1-1/2

    22

    16

    27-3/4

    20

    1-5/8

    24-1/2

    18

    31

    20

    1-7/8

    27

    20

    33-3/4

    20

    29-1/2

    24

    41

    20

    2-1/2

    35-1/2

    Class 1500
    Nominal Pipe Size
    NPS
    (inches)

    1/2

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    4-3/4

    3/4

    3-1/4

    Class 1500
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    3/4

    5-1/8

    3/4

    3-1/2

    5-7/8

    7/8

    1-1/4

    6-1/4

    7/8

    4-3/8

    1-1/2

    4-7/8

    8-1/2

    7/8

    6-1/2

    2-1/2

    9-5/8

    7-1/2

    10-1/2

    1-1/8

    12-1/4

    1-1/4

    9-1/2

    14-3/4

    1-1/2

    11-1/2

    15-1/2

    12

    1-3/8

    12-1/2

    19

    12

    1-5/8

    15-1/2

    Class 1500
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    10

    23

    12

    1-7/8

    19

    12

    26-1/2

    16

    22-1/2

    14

    29-1/2

    16

    2-1/4

    25

    16

    32-1/2

    16

    2-1/2

    27-3/4

    18

    36

    16

    2-3/4

    30-1/2

    20

    38-3/4

    16

    32-3/4

    24

    46

    16

    3-1/2

    39

    Class 2500
    Nominal Pipe Size
    NPS
    (inches)

    1/2

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    5-1/4

    3/4

    3-1/2

    Class 2500
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    3/4

    5-1/2

    3/4

    3-3/4

    6-1/4

    7/8

    4-1/4

    1-1/4

    7-1/4

    5-1/8

    1-1/2

    1-1/8

    5-3/4

    9-1/4

    6-3/4

    2-1/2

    10-1/2

    1-1/8

    7-3/4

    12

    1-1/4

    14

    1-1/2

    10-3/4

    16-1/2

    1-3/4

    12-3/4

    19

    14-1/2

    21-3/4

    12

    17-1/4

    Class 2500
    Nominal Pipe Size
    NPS
    (inches)

    Diameter of
    Flange
    (inches)

    No.
    of
    Bolts

    Diameter of
    Bolts
    (inches)

    Bolt
    Circle
    (inches)

    10

    26-1/2

    12

    2-1/2

    21-1/4

    12

    30

    12

    2-3/4

    24-3/8

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