Pipe Clamps & Risers

A pipe clamp is a bolted pipe attachment which clamps around the pipe to connect the pipe to the remainder of a pipe hanger assembly. Piping Technology & Products, Inc. maintains an extensive inventory of pipe clamps required for pipe hanger and support assemblies. The pipe clamps and risers can be manufactured with galvanized or black finishes depending upon customer specifications.

TYPES & SIZES

Technical Information

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    A pipe clamp is a pipe attachment which clamps around the pipe to connect the pipe to the remainder of ...Continue Reading

    When using pipe clamps as part of an anchoring assembly, the resistanceto the pipe movement can be developed in two ...Continue Reading

    The most common method for supporting vertical piping would be to first weld shear lugs into position, and then utilize ...Continue Reading

    Riser clamps are a two point load bearing component and are usually used for vertical running pipe lines wherein shear ...Continue Reading


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    GENERAL DIMENSIONS & SPECIFICATIONS

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    Fig. 50: Light Two Bolt Pipe Clamp

    Fig50

    SIZE RANGE: 1/2 inch thru 36 inches
    MATERIAL: Carbon steel
    FINISH: Black or galvanized; furnished black unless otherwise specified.
    SERVICE: Recommended for suspension of cold pipe lines or hot lines where little or no insulation is required.
    MAX. TEMP.: 750°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZEMAX. RECOM. LOAD, lbs.BCDEFSTOCK SIZEHAPPROX. WEIGHT
    @ 650° F@ 750° FGlbs. per each
    1/250044511/21 17/3215/161/8 x 11 17/320.29
    3/45004451 1/81/21 21/321 1/85/161/8 x 11 21/320.33
    15004451 1/81/21 29/321 3/85/161/8 x 11 21/320.35
    1 1/45004451 7/161/21 31/321 7/165/161/8 x 11 31/320.37
    1 1/28007151 9/161/22 5/321 5/85/161/8 x 12 3/320.43
    210409302 1/81/22 3/42 1/81/21/4 x 12 3/41.1
    2 1/210409302 1/25/83 1/42 5/81/21/4 x 13 1/81.2
    310409302 13/165/83 9/162 15/161/21/4 x 13 7/161.4
    3 1/210409303 1/85/83 13/163 3/161/21/4 x 13 3/41.5
    410409303 7/163/44 3/83 5/85/81/4 x 1 1/44 3/162.3
    5104093043/44 15/164 3/165/81/4 x 1 1/44 3/42.6
    6161514404 7/87/85 7/853/43/8 x 1 1/25 3/45.4
    8161514406176 1/83/43/8 x 1 1/26 7/86.5
    10249022207 5/1618 9/167 7/167/81/2 x 28 7/1613.6
    12249022208 1/419 9/168 7/167/81/2 x 29 3/815.2
    142490222091 1/810 5/89 1/47/81/2 x 2 1/210 3/820.5
    1624902220101 1/811 5/810 1/47/81/2 x 2 1/211 3/822.3
    183060273011 1/21 1/41311 5/815/8 x 2 1/212 7/831.6
    203060273012 1/21 3/814 1/812 3/41 1/85/8 x 2 1/213 7/835.8
    2430602730151 5/816 7/815 1/41 1/45/8 x 316 5/853.1
    303500336018 1/4221 1/4191 3/43/4 x 420 5/8113.9
    364000357022 1/22 1/225 1/22321 x 525219.0

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    Fig. 60: Heavy Two Bolt Clamp

    Fig60

    SIZE RANGE: 3 inches thru 36 inches
    MATERIAL: Carbon steel
    FINISH: Black or galvanized; furnished black unless otherwise specified.
    SERVICE: Recommended for suspension of cold or hot pipe lines with heavy load having little or no insulation.
    MAX. TEMP.: 750°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZE
    MAX. RECOM. LOAD, lbs.
    BCDEF
    STOCK SIZE
    HK
    APPROX. WEIGHT (lbs. per each)
    @ 650° F@ 750° FG
    3
    3370
    3005
    2 15/16
    1
    4
    3 1/8
    3/4
    5/16 x 2
    3 13/16
    5/8
    3.60
    3 1/2
    3370
    3005
    3 1/4
    1
    4 1/4
    3 3/8
    3/4
    5/16 x 2
    3 13/16
    5/8
    3.90
    4
    3515
    3135
    3 9/16
    1
    4 7/8
    3 3/4
    7/8
    3/8 x 2
    4 11/16
    5/8
    5.50
    5
    3515
    3135
    4 1/8
    1
    5 1/2
    4 3/8
    7/8
    3/8 x 2
    5 1/4
    5/8
    6.30
    6
    4865
    4340
    5
    1 1/8
    6 5/8
    5 1/4
    1
    1/2 x 2 1/2
    6 3/8
    7/8
    11.70
    8
    4865
    4340
    6 1/8
    1 1/8
    7 5/8
    6 1/4
    1
    1/2 x 2 1/2
    7 1/2
    7/8
    13.90
    10
    6010
    5360
    7 9/16
    1 1/4
    9 1/16
    7 11/16
    1 1/4
    5/8 x 2 1/2
    8 15/16
    7/8
    22.30
    12
    8675
    7740
    9
    1 5/8
    10 7/8
    9 1/4
    1 1/2
    3/4 x 3
    10 5/8
    7/8
    38.10
    14
    9120
    8135
    9 3/4
    1 5/8
    11 7/8
    10
    1 1/2
    3/4 x 4
    11 5/8
    7/8
    46.80
    16
    9120
    8135
    10 3/4
    1 5/8
    12 7/8
    11
    1 1/2
    3/4 x 4
    12 5/8
    7/8
    51.40
    18
    13800
    12305
    14 1/2
    3
    17 1/4
    14 1/2
    2
    3/4 x 6
    17 1/4
    3
    130.10
    20
    15300
    13645
    16
    3
    18 3/4
    16
    2
    1 x 5
    18 3/4
    3
    163.60
    24
    16300
    14535
    18 1/2
    3 1/4
    21 1/2
    18 1/2
    2 1/4
    1 x 6
    21 1/2
    3 1/4
    215.00
    28
    18000
    16055
    20 1/2
    3 1/4
    23 1/2
    20 1/2
    2 1/4
    1 x 8
    23 1/2
    3 1/4
    303.00
    30
    20500
    18285
    22 1/2
    3 1/2
    26
    22 1/2
    2 1/2

    1

    1/4 x 7

    26
    3 1/2
    365.40
    32
    23750
    21180
    23 1/2
    3 1/2
    27
    23 1/2
    2 1/2

    1

    1/4 x 8

    27
    3 1/2
    432.00
    34
    25000
    22295
    25
    3 1/2
    28 1/2
    25
    2 1/2
    1 1/2 x 8
    28 1/2
    3 1/2
    534.00
    36
    28000
    24975
    26 1/2
    3 1/2
    30 1/4
    26 1/2
    2 3/4
    1 1/2 x 8
    33 3/4
    3 1/2
    575.00

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    Fig. 70: Light Three Bolt Pipe Clamp

    Fig70

    SIZE RANGE: 1/2 inch thru 36 inches
    MATERIAL: Carbon steel
    FINISH: Black or galvanized; furnished black unless otherwise specified.
    SERVICE: Recommended for suspension of cold or hot pipe lines requiring little insulation or insulation up to 4 inches
    MAX. TEMP.: 750°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZE
    MAX. RECOM. LOAD, lbs.
    B
    C
    D
    E
    F
    G
    H
    APPROX. WEIGHT
    @ 650° F
    @ 750° F
    lbs. per each
    1/2
    950
    850
    15/16
    5/16
    2 7/8
    2 7/16
    3/8
    3/16 x 1
    1 3/8
    0.66
    3/4
    950
    850
    15/16
    5/8
    2 7/8
    2 7/16
    3/8
    3/16 x 1
    1 3/8
    0.70
    1
    950
    850
    1 1/16
    5/8
    3
    2 9/16
    3/8
    3/16 x 1
    1 1/2
    0.76
    1 1/4
    950
    850
    1 1/4
    5/8
    3 1/8
    2 11/16
    3/8
    3/16 x 1
    1 11/16
    0.81
    1 1/2
    1545
    1380
    1 13/16
    1 1/16
    4 7/8
    4 1/8
    5/8
    1/4 x 1 1/4
    2 3/8
    2.30
    2
    1545
    1380
    2 1/8
    1 1/16
    5 7/8
    5 1/8
    5/8
    1/4 x 1 1/4
    2 11/16
    2.60
    2 1/2
    1545
    1380
    2 5/16
    1 1/16
    6 1/8
    5 3/8
    5/8
    1/4 x 1 1/4
    2 15/16
    2.70
    3
    1545
    1380
    2 3/4
    1 1/16
    6 11/16
    5 15/16
    5/8
    1/4 x 1 1/4
    3 1/2
    3.00
    4
    2500
    2230
    3 3/8
    1 1/16
    7 5/8
    6 1/2
    3/4
    5/16 x 2
    4 1/2
    6.70
    5
    2500
    2230
    3 15/16
    1 1/16
    8 1/8
    7
    3/4
    5/16 x 2
    5
    7.00
    6
    2865
    2555
    4 3/4
    1 7/16
    9 11/16
    8 9/16
    7/8
    3/8 x 2 1/2
    6 1/8
    11.50
    8
    2865
    2555
    5 3/4
    1 7/16
    10 11/16
    9 9/16
    7/8
    3/8 x 2 1/2
    7 1/8
    13.20
    10
    3240
    2890
    6 7/8
    1 7/16
    12
    10 5/8
    1
    1/2 x 2 1/2
    8 1/4
    19.80
    12
    3240
    2890
    7 7/8
    1 7/16
    13
    11 5/8
    1
    1/2 x 2 1/2
    9 1/4
    22.30
    14
    4300
    3835
    9 1/16
    2
    14 5/16
    12 11/16
    1 1/4
    5/8 x 3
    10 11/16
    37.70
    16
    4300
    3835
    10 1/16
    2
    15 5/16
    13 11/16
    1 1/4
    5/8 x 3
    11 11/16
    41.40
    18
    4300
    3835
    11 1/16
    2
    16 5/16
    14 11/16
    1 1/4
    5/8 x 3
    12 11/16
    44.90
    20
    5490
    4900
    12 3/8
    2
    17 5/8
    15 7/8
    1 1/2
    3/4 x 3
    14
    57.30
    24
    4500
    4015
    14 3/8
    2
    19 5/8
    17 7/8
    1 1/2
    3/4 x 3
    16
    65.90
    28
    6000
    5340
    17 1/2
    2 1/4
    24 1/4
    21 3/4
    1 1/2
    3/4 x 4
    20
    112.30
    30
    7500
    6675
    18 1/2
    2 1/2
    26 1/8
    23 3/8
    1 1/2
    3/4 x 5
    21 1/4
    150.00
    36
    10500
    9345
    22 1/2
    3
    32 1/4
    28 3/4
    1 3/4
    1 x 5
    26
    257.50

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    Fig. 70A: Alloy Three Bolt Pipe Clamp

    Fig70a

    SIZE RANGE: 1/2 inch thru 36 inches
    MATERIAL: Chrome molybdenum steel (ASTM A387)
    FINISH: Black
    SERVICE: Recommended for suspension of hot pipe lines requiring up to 4″ of insulation.
    MAX. TEMP.: 1050°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZE
    MAX. RECOM. LOAD, lbs.
    B
    C
    D
    E
    F
    G
    H
    APPROX. WEIGHT (lbs. per each)
    @ 750° F@ 1000° F@ 1050° F
    1/2
    860
    610
    455
    15/16
    5/16
    2 7/8
    2 7/16
    3/8
    3/16 x 1
    1 3/8
    0.66
    3/4
    860
    610
    455
    15/16
    5/8
    2 7/8
    2 7/16
    3/8
    3/16 x 1
    1 3/8
    0.70
    1
    860
    610
    455
    1 1/16
    5/8
    3
    2 9/16
    3/8
    3/16 x 1
    1 1/2
    0.76
    1 1/4
    860
    610
    455
    1 1/4
    5/8
    3 1/8
    2 11/16
    3/8
    3/16 x 1
    1 11/16
    0.81
    1 1/2
    1410
    1000
    745
    1 13/16
    1 1/16
    4 7/8
    4 1/8
    5/8
    1/4 x 1 1/4
    2 3/8
    2.30
    2
    1410
    1000
    745
    2 1/8
    1 1/16
    5 7/8
    5 1/8
    5/8
    1/4 x 1 1/4
    2 11/16
    2.60
    2 1/2
    1410
    1000
    745
    2 5/16
    1 1/16
    6 1/8
    5 3/8
    5/8
    1/4 x 1 1/4
    2 15/16
    2.70
    3
    1410
    1000
    745
    2 3/4
    1 1/16
    6 11/16
    5 15/16
    5/8
    1/4 x 1 1/4
    3 1/2
    3.00
    4
    2290
    1625
    1200
    3 3/8
    1 1/16
    7 5/8
    6 1/2
    3/4
    5/16 x 2
    4 1/2
    6.70
    5
    2290
    1625
    1200
    3 15/16
    1 1/16
    8 1/8
    7
    3/4
    5/16 x 2
    5
    7.00
    6
    2620
    1860
    1380
    4 3/4
    1 7/16
    9 11/16
    8 9/16
    7/8
    3/8 x 2 1/2
    6 1/8
    11.50
    8
    2620
    1860
    1380
    5 3/4
    1 7/16
    10 11/16
    9 9/16
    7/8
    3/8 x 2 1/2
    7 1/8
    13.20
    10
    2970
    2100
    1565
    6 7/8
    1 7/16
    12
    10 7/16
    1
    1/2 x 2 1/2
    8 1/4
    19.80
    12
    2970
    2095
    1555
    7 7/8
    1 7/16
    13
    11 7/16
    1
    1/2 x 2 1/2
    9 1/4
    22.30
    14
    3915
    2795
    2060
    9 1/16
    2
    14 5/16
    12 11/16
    1 1/4
    5/8 x 3
    10 11/16
    37.70
    16
    3915
    2795
    2060
    10 1/16
    2
    15 5/16
    13 11/16
    1 1/4
    5/8 x 3
    11 11/16
    41.40
    18
    3915
    2795
    2060
    11 1/16
    2
    16 5/16
    14 11/16
    1 1/4
    5/8 x 3
    12 11/16
    44.90
    20
    4995
    3550
    2635
    12 3/8
    2
    17 5/8
    15 7/8
    1 1/2
    3/4 x 3
    14
    57.30
    24
    4995
    3550
    2635
    14 3/8
    2
    19 5/8
    17 7/8
    1 1/2
    3/4 x 3
    16
    65.90
    28
    5475
    3890
    2900
    17 1/2
    2 1/4
    24 1/4
    21 3/4
    1 1/2
    3/4 x 4
    20
    112.30
    30
    6850
    4860
    3630
    18 1/2
    2 1/2
    26 1/8
    23 3/8
    1 1/2
    3/4 x 5
    21 1/4
    150.00
    36
    9580
    6800
    5070
    22 1/2
    3
    32 1/4
    28 3/4
    1 3/4
    1 x 5
    26
    257.50

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    Fig. 80: Heavy Three Bolt Pipe Clamp

    Fig80

    SIZE RANGE: 1/2 inch thru 36 inches
    MATERIAL: Carbon steel
    FINISH: Black or galvanized; furnished black unless otherwise specified.
    SERVICE: Recommended for suspension of cold pipe lines or hot lines where little or no insulation is required.
    MAX. TEMP.: 750°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZE

    MAX. RECOM.

    LOAD, lbs.

    B
    C
    D
    E
    F
    G
    H

    APPROX.

    WEIGHT lbs. per each

    @ 650° F@ 750° F
    1 1/2
    2710
    2420
    2 1/8
    1
    5 13/16
    5
    3/4
    3/8 x 2
    3 1/8
    5.5
    2
    2710
    2420
    3
    1
    6 1/16
    5 1/16
    3/4
    3/8 x 2
    4
    5.7
    3
    2710
    2420
    3 5/8
    1 1/2
    8
    6 1/2
    3/4
    3/8 x 2
    5 1/8
    7.5
    4
    3500
    3125
    4 1/2
    1 3/4
    9
    7
    7/8

    3/8 x 2

    1/2

    6 1/2
    10.7
    6
    3500
    3125
    4 3/4
    1 3/4
    10 3/16
    8 15/16
    1

    3/8 x 2

    1/2

    6
    12.0
    8
    4800
    4285
    6
    2
    11 3/8
    10 1/8
    1 1/8

    1/2 x 2

    1/2

    7 1/4
    18.5
    10
    5500
    4910
    7 1/4
    2 1/4
    13 1/8
    11 3/8
    1 1/4
    1/2 x 3 1/2
    9
    30.3
    12
    7000
    6250
    8 5/8
    2 1/2
    14 5/16
    12 9/16
    1 3/8
    5/8 x 3 1/2
    10 3/8
    42.0
    14
    9500
    8485
    9 5/8
    2 1/2
    15 1/2
    13 1/2
    1 1/2
    3/4 x 4
    11 5/8
    60.0
    16
    10000
    8930
    10 7/8
    3
    17 1/8
    14 7/8
    1 3/4
    3/4 x 4 1/2
    13 1/8
    80.0
    18
    13800
    12325
    12 1/2
    3 1/2
    18 1/4
    16 1/4
    2
    1 x 4
    14 1/2
    115.0
    20
    15300
    13665
    13 1/2
    3 1/2
    19 3/4
    17 1/4
    2
    1 x 5
    16
    140.0
    24
    16300
    14555
    15 1/2
    3 1/2
    22 5/16
    19 5/16
    2
    1 x 6
    18 1/2
    190.0
    28
    18000
    16055
    18 7/8
    4
    31 3/4
    27 1/4
    2 1/4
    1 x 7
    23 3/8
    354.0
    30
    20500
    18285
    19 7/8
    4 1/4
    32 3/4
    28 1/4
    2 1/4
    1 x 8
    24 3/8
    406.0
    36
    28000
    24975
    24 5/8
    4 1/2
    40 1/4
    34 3/4
    2 3/4
    1 1/2 x 8
    30 1/8
    678.0

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    Fig. 90: Riser Clamp

    Fig90

    SIZE RANGE: 1/2″ thru 24″
    MATERIAL: Carbon steel
    FINISH: Black or galvanized; furnished black unless otherwise specified.
    SERVICE: For support and steadying of steel pipe risers either insulated or bare, cast iron pipe, or conduit.
    MAX. TEMP.: 650°F
    ORDERING: Specify figure number, pipe size, description and finish.

    PIPE SIZE
    MAX. RECOM. LOAD
    APPROX. WEIGHT
    LENGTH
    STOCK SIZE
    BOLT SIZE
    lbs.lbs. per 100A
    1/2
    255
    123
    9 3/8
    3/16 x 1 1/4
    3/8 x 1 1/2
    3/4
    255
    136
    9 3/8
    3/16 x 1 1/4
    3/8 x 1 1/2
    1
    255
    138
    9 5/8
    3/16 x 1 1/4
    3/8 x 1 1/2
    1 1/4
    390
    195
    10
    1/4 x 1 1/4
    3/8 x 1 1/2
    1 1/2
    390
    201
    10 3/8
    1/4 x 1 1/4
    3/8 x 1 1/2
    2
    390
    217
    10 3/4
    1/4 x 1 1/4
    7/16 x 2
    2 1/2
    390
    229
    11 1/4
    1/4 x 1 1/4
    7/16 x 2
    3
    530
    250
    12
    1/4 x 1 1/4
    7/16 x 2
    3 1/2
    670
    330
    13
    1/4 x 1 1/2
    1/2 x 2
    4
    810
    342
    13 1/2
    1/4 x 1 1/2
    1/2 x 2
    5
    1160
    493
    14 1/2
    1/4 x 2
    1/2 x 2
    6
    1570
    526
    15 1/2
    1/4 x 2
    1/2 x 2
    8
    2500
    986
    18 1/2
    3/8 x 2
    5/8 x 2 1/2
    10
    2500
    1112
    20 3/4
    3/8 x 2
    5/8 x 2 1/2
    12
    2700
    1662
    22 3/4
    1/2 x 2
    5/8 x 3
    14
    2700
    1925
    24
    1/2 x 2
    5/8 x 3
    16
    2900
    3250
    26
    5/8 x 2 1/2
    3/4 x 3 1/2
    18
    2900
    3375
    28
    5/8 x 2 1/2
    3/4 x 3 1/2
    20
    2900
    3500
    30
    5/8 x 2 1/2
    3/4 x 3 1/2
    24
    3200
    5070
    36
    5/8 x 3
    7/8 x 3 1/2

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    Fig. 190: Fabricated Riser Clamp

    Fig. 190: Fabricated Riser Clamp

    SERVICE:
    In situations where the use of a welded lug attachment would create an undesirable crushing effect on the pipe wall, this clamp can transfer the load from the pipe wall to the riser clamp by means of hold-down lugs welded to the pipe.

    Clamps may be furnished in either Carbon or Alloy steel with bolting to suit, using an allowable stress of 10,000 PSI. Temperature correction factors listed in “CHART A” are based on allowable stresses listed in MSS-SP-58.

    METHODS OF SELECTION:
    1. Determine total load to be supported and service temperature of the piping system.
    2. Refer to “CHART A (table below)” and determine the temperature correction factor for the clamp material being used.
    3. Multiply total load by the correction factor to obtain a corrected load.
    4. Refer to “CHART C (below)” and locate the point determined by the intersection of the total load co-ordinate and the pipe size curve. Project this point horizontally until it intersects with the “D” dimension coordinate. Directly above this point is the required stock size.
    5. The bolt diameter is obtained by using the uncorrected total load and referring to “CHART B (below)”.

    ORDERING: Specify pipe outside diameter, total load, design temperature, material and dimension “D” or center to center of hanger rods.

    NOTE: Pipe clamp can be fabricated to any specified material.

    CHART A - STRESS-TEMPERATURE CORRECTION FACTORS
    Material SpecificationDESIGN TEMPERATURE °F
    ASTMGRADE65070075080085090095010001050110011501200
    A 36-0.80.830.891.06--------
    A . 387110.660.660.660.660.690.760.911.53----
    A . 387220.660.660.660.660.690.760.911.281.722.38--
    A . 2403040.940.950.960.970.9911.021.021.111.211.451.81

    CHART B –

    CLAMP SPACING AND BOLT SIZES

    Uncorrected

    Total Load lb.

    3,400
    4,700
    6,200
    8,000
    10,000
    12,000
    16,000
    19,000
    25,000
    32,000
    40,000
    55,000
    67,000
    82,000
    96,000
    118,000
    135,000
    154,000
    BOLT – B
    5/8
    3/4
    7/8
    1
    1 1/8
    1 1/4
    1 3/8
    1 1/2
    1 3/4
    2
    2 1/4
    2 1/2
    2 3/4
    3
    3 1/4
    3 1/2
    3 3/4
    4
    BOLT – C
    3/4
    7/8
    1
    1
    1 1/8
    1 3/8
    1 1/2
    1 3/4
    2
    2
    2 1/4
    2 1/2
    2 3/4
    3
    3
    SPACE – S
    7/8
    1
    1 1/4
    1 1/2
    1 1/2
    1 3/4
    1 7/8
    2 1/4
    2 1/4
    2 1/2
    3
    3 1/4
    3 1/2
    4
    4
    4 1/4
    4 1/2
    4 3/4

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