Intermediate Guide Spacing/Series 1500 Laminated Bellows Expansion Joints

Nominal Size NPS 150 psig Design
300 psig Design System
System Pressure (psig) Pressure (psig)
50 100 150 50 100 150 200 300
2 26 20 17 23 18 16 14 12
2 1/2 34 26 22 30 24 21 18 15
3 40 30 25 35 28 24 21 18
4 45 34 29 38 31 27 24 20
5 54 41 34 47 37 32 29 24
6 60 46 39 57 45 38 33 28
8 79 59 49 72 56 47 41 34
10 97 71 59 89 68 57 50 42
12 107 79 66 97 75 63 56 46
14 113 83 68 103 78 66 58 48


Note:
(
1) The values listed are the center to center distance measured in feet.
(2) Pipe guide spacing is a function of the expansion joint spring rate and effective area. The tabulated values are for Series 1500
laminated expansion joints at the design pressure listed.
(3) The pressures listed are design values. Guide spacing has been calculated for the test pressure (1.5 X design).

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