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  • 7/30/2019 Catalog Spring Hangers Cobalch

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    Cobalch ApS Hejreskovvej 24B DK-3490 Kvistgrd Denmark Tel.: +45 4582 0533 Fax.: +45 4582 0118Danske Bank: 4130 4130088031 IBAN - DKK: DK3130004130088031 - EUR: DK4730004130088228 Swift code: DABADKKKCVR nr. DK70614316 cobalch@cobalch.com www.cobalch.com

    3.4.1.1

    SPRING HANGERS

  • 7/30/2019 Catalog Spring Hangers Cobalch

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    Cobalch ApS Hejreskovvej 24B DK-3490 Kvistgrd Denmark Tel.: +45 4582 0533 Fax.: +45 4582 0118Danske Bank: 4130 4130088031 IBAN - DKK: DK3130004130088031 - EUR: DK4730004130088228 Swift code: DABADKKKCVR nr. DK70614316 cobalch@cobalch.com www.cobalch.com

    3.4.1.2

    Nominal travel Sn VH-size

    50 100 200 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16

    Hanger travel Service travel Required load Fs depending on travel

    mm kN

    05

    010

    0 0.16 0.32 0.66 1.30 2.30 3.90 6.60 10.9 16.5 23.0 33.0 43.6 66.0 92.0 132 165

    2.5 5 10 0.18 0.35 0.73 1.44 2.54 4.31 7.27 12.0 18.2 25.4 36.4 48.0 72.7 101 145 182

    5.0

    7,5

    10

    15

    20 0.19 0.39 0.79 1.57 2.77 4.71 7.94 13.1 19.9 27.7 39.7 52.4 79.4 111 159 199

    7.5 15 30 0.21 0.42 0.86 1.71 3.01 5.12 8.61 14.2 21.5 30.1 43.1 56.9 86.1 120 172 215

    10.0 20 40 0.23 0.46 0.93 1.84 3.24 5.52 9.28 15.3 23.2 32.4 46.4 61.3 92.8 130 186 232

    12.5 25 50 0.25 0.49 1.00 1.98 3.48 5.93 9.95 16.4 24.9 34.8 49.8 65.7 99.5 139 199 249

    15.0

    10

    30

    20

    60 0.26 0.52 1.06 2.11 3.71 6.33 10.6 17.5 26.6 37.1 53.1 70.1 106 148 212 266

    17.5 35 70 0.28 0.56 1.13 2.25 3.95 6.74 11.3 18.6 28.2 39.5 56.5 74.5 113 158 226 282

    20.0 40 80 0.30 0.59 1.20 2.38 4.18 7.14 12.0 19.7 29.9 41.8 59.8 79.0 120 167 239 299

    22.5 45 90 0.31 0.63 1.26 2.52 4.42 7.55 12.6 20.8 31.6 44.2 63.2 83.4 126 177 253 316

    25.0

    12,5

    50

    25

    100 0.33 0.66 1.33 2.65 4.65 7.95 13.3 22.0 33.3 46.5 66.5 87.8 133 186 266 333

    27.5 55 110 0.35 0.69 1.40 2.79 4.89 8.36 14.0 23.1 34.9 48.9 69.9 92.2 140 195 279 349

    30.0 60 120 0.36 0.73 1.46 2.92 5.12 8.76 14.6 24.2 36.6 51.2 73.2 96.6 146 205 293 366

    32.5 65 130 0.38 0.76 1.53 3.06 5.36 9.17 15.3 25.3 38.3 53.6 76.6 101 153 214 306 383

    35.0

    15

    70 140

    60

    0.40 0.80 1.60 3.19 5.59 9.57 16.0 26.4 40.0 55.9 79.9 105 160 224 320 400

    37.5 75 150 0.42 0.83 1.67 3.33 5.83 9.98 16.7 27.5 41.6 58.3 83.3 110 167 233 333 416

    40.0 80 160 0.43 0.86 1.73 3.46 6.06 10.4 17.3 28.6 43.3 60.6 86.6 114 173 242 346 433

    42.5 85 30 170 0.45 0.90 1.80 3.60 6.30 10.8 18.0 29.7 45.0 63.0 90.0 119 180 252 360 450

    45.0 90 180 0.47 0.93 1.87 3.73 6.53 11.2 18.7 30.8 46.7 65.3 93.3 123 187 261 373 467

    47.5 95 190 0.48 0.97 1.93 3.87 6.77 11.6 19.3 31.9 48.3 67.7 96.7 128 193 271 387 483

    50.0 100 200 0.50 1.00 2.00 4.00 7.00 12.0 20.0 33.0 50.0 70.0 100 132 200 280 400 500

    Nominal travel Sn Load Fn in kN

    Load group LGV 12 12 12 12 12 16 20 24 30 36 42 48 64 72 80 90

    Spring rates R in N/mm50 6.8 13.6 26.8 54 94 162 268 442 670 940 1340 1768 2680 3760 5360 6700

    100 3.4 6.8 13.4 27 47 81 134 221 335 470 670 884 1340 1880 2680 3350

    200 1.7 3.4 6.7 13.5 23.5 40.5 67 110.5 167.5 235 335 442 670 940 1340 1675

    Nominelsize

    Selection

    The following table indicates the possible load (required load Fs) for each VH-size depending on the hanger travel and basedon the respective nominal travel sn (50, 100 eller 200 mm). The maximum load corresponds with the nominal load Fn of thevariable spring hanger. The required travel of the variable spring hanger corresponds with the vertical movement of the con-nected plant component due to temperature.The load variation between cold and hot position, unavoidable in variable spring hangers, causes additional strain to the sup-ported component. In order to limit such additional load to 25% of the operating load, the recommended working travels shouldnot be exceeded (VGB-R 510L) which corresponds to the design criteria of the American specification MSS Standard Practices.In addition, travel reserves of at least 20% of the required travel ss or of 5 mm as absolute minimum should be added to eachlimit (requirement according to VGB-R 510 and KTA 3205.3).To save money, it makes sence to choose the load range between the hot and the cold state as close as possible to the nomi-nal load.

    Example of requirement

    Variable spring hanger with double lug (standard)Operating load: Fw = 90 kNRequired travel, downwards: Ss = 25 mmLocking at: Cold load Fk

    Selection

    In case of downward required travel, the operating load occurs at higher load; it is kept as close as possible to the nominal load.Result, VH-size 11, nominal travel Sn 100 mm (from recommended working travel Ss = 25 mm) with cold load 73.2 kN. Travelreserve: 15 mm. Load variation: F = 16.8 kN corresponding to 19% of Fw (read from load/travel table or calculated by meansof spring rate: F = R * Ss) Instalation dimension E for preset hanger, preset distance Sv = 60 mm corresponding to hangertravel at cold load (from the following table).

    Installation dimension: E = E* + Sv = 705 + 60E = 765 mm

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    Cobalch ApS Hejreskovvej 24B DK-3490 Kvistgrd Denmark Tel.: +45 4582 0533 Fax.: +45 4582 0118Danske Bank: 4130 4130088031 IBAN - DKK: DK3130004130088031 - EUR: DK4730004130088228 Swift code: DABADKKKCVR nr. DK70614316 cobalch@cobalch.com www.cobalch.com

    3.4.1.3

    Variable spring hangers

    with double lug (includingbolt) is suitable for directconnection to a hangingsuspension structure only by means of Weld-Tech or clamp lugs withoutadditional connectingparts. The load can be setby turning the hanger turn-buckle.

    FDH FHG FHS FSS/FSP

    Variable spring hangers

    with threaded connectionare suitable for installationat a required level by in-serting a fitting threadedrod as vertical connectionto the superior steel struc-ture. This rod is connectedto the suspension struc-ture by a clevis and a weldor clamp lug, or by use ofa square plate with spheri-cal washer, by means ofhexnuts. The load can be

    set by turning the hangerturnbuckle.

    Variable spring hangers

    for continuous tie rods aresuitable for mounting onthe suspending steelstructure, to which theyare fixed by bolts. Theload is transferred by thethrough-rod and thescrewed-on nuts. The loadcan be set by turning thenuts.

    Variable spring supports

    with supporting plate ab-sorb load from above.They are mounted om thesteel structure by fixing thefoot plate with bolts. Theload is transferred to thesupport plate of the springsupports by a sliding orinsulation shoe with flatcontact surface. If lateralmovements may occur,supports with PTFE slideplate (type range FSP)

    should be selected.

    FSG FDT

    Angulating spring support absorb the load as compres-sion force and transfer it to the suspension by sphericalsway heads. Greater lateral shifting of the componentsto be suspended, combined with low lateral forces arethus made possible. The use of these devices is accept-able only if the inherent stiffness of the component to besuspended is sufficient to secure it in its position.

    Trapeze-type hangers are suitable for the supporting ofpipes near the underneath suspension steel structure.Pipes can be equipped with a suitable pipe shoe andthen be placed on the trapeze. The load can be set byturning the hanger turnbuckle.

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    Cobalch ApS Hejreskovvej 24B DK-3490 Kvistgrd Denmark Tel.: +45 4582 0533 Fax.: +45 4582 0118Danske Bank: 4130 4130088031 IBAN - DKK: DK3130004130088031 - EUR: DK4730004130088228 Swift code: DABADKKKCVR nr. DK70614316 cobalch@cobalch.com www.cobalch.com

    3.4.1.4

    Variable Spring Hanger with double lugType FHD

    Standard version:Hanger preset, galvanized housing and connectingparts, alkyd-painted spring.Options:Hanger not preset, hot-dip galvanized housing andadditional terrosone coating of the spring, inchthread.

    Order example: FDH 11.100.42 (standard)

    VH

    size

    Nominal Nominal Type Spring Load Instal.

    dimen.

    Main dimensions Weight

    travel load rate groupSn Fn FHD... R LGV E* A B* D H a b c d r v ca.

    mm kN N/mm mm mm mm mm mm mm mm mm mm mm mm kg

    50 01.050.12 6.8 225 190 160 3

    01 100 0.5 01.100.12 3.4 12 300 265 85 110 235 15 5 12 M12 12 4

    200 01.200.12 1.7 470 435 405 5

    50 02.050.12 13.6 225 190 160 3

    02 100 1 02.100.12 6.8 12 300 265 85 110 235 15 5 12 M12 12 4

    200 02.200.12 3.4 470 435 405 5

    50 03.050.12 26.8 230 195 165 4

    03 100 2 03.100.12 13.4 12 300 265 85 120 235 15 5 12 M12 12 5

    200 03.200.12 6.7 480 445 415 8

    50 04.050.12 54.0 230 195 165 4

    04 100 4 04.100.12 27.0 12 300 265 85 120 235 15 5 12 M12 12 5

    200 04.200.12 13.5 480 445 415 8

    50 05.050.12 94.0 285 245 205 8

    05 100 7 05.100.12 47.0 12 380 340 85 155 300 20 6 12 M12 20 10200 05.200.12 23.5 610 570 530 15

    50 06.050.16 162.0 295 245 205 9

    06 100 12 06.100.16 81.0 16 390 340 110 155 300 20 6 16 M16 20 11

    200 06.200.16 40.5 620 570 530 19

    50 07.050.20 268.0 340 285 240 17

    07 100 20 07.100.20 134.0 20 440 385 130 180 340 24 8 20 M20 25 22

    200 07.200.20 67.0 685 630 585 32

    50 08.050.24 442.0 410 335 280 32

    08 100 33 08.100.24 221.0 24 525 450 160 230 395 30 10 24 M24 30 39

    200 08.200.24 110.5 795 720 665 63

    50 09.050.30 670.0 500 425 345 54

    09 100 50 09.100.30 335.0 30 635 560 175 260 480 48 15 33 M30 50 67

    200 09.200.30 167.5 980 905 825 101

    50 10.050.36 940 500 425 345 59

    10 100 70 10.100.36 470 36 635 560 180 260 480 48 15 40 M36 50 77

    200 10