Pipe Support Spans: carbon steel
cs 3 sch40 steam to cs 8 sch40 water
Maximum allowable horizontal pipe support spans — maximum spacing between supports for straight horizontal runs by pipe material, NPS, schedule, and service (water, steam/gas/air). Per MSS SP-69 and ASME B31.1 Table 121.5. Covers carbon steel Sch40 (1/2"–24"), stainless steel Sch10S (1"–12"), copper Type L (1/2"–4"), PVC Sch40/80 with temperature correction, CPVC Sch40/80 with temperature correction, and FRP standard wall.
| pipe material | record id | nps in (in) | schedule | service | span ft (ft) | span m (m) | standard |
|---|---|---|---|---|---|---|---|
| carbon steel | cs 3 sch40 steam | 3 | Sch40 | steam | 15 | 4.6 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 3 sch40 water | 3 | Sch40 | water | 12 | 3.7 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 4 sch40 steam | 4 | Sch40 | steam | 17 | 5.2 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 4 sch40 water | 4 | Sch40 | water | 14 | 4.3 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 6 sch40 steam | 6 | Sch40 | steam | 21 | 6.4 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 6 sch40 water | 6 | Sch40 | water | 17 | 5.2 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 8 sch40 steam | 8 | Sch40 | steam | 24 | 7.3 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
| carbon steel | cs 8 sch40 water | 8 | Sch40 | water | 19 | 5.8 | MSS SP-69 Table 3; ASME B31.1 Table 121.5 |
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