Design Factor (F) for Steel Pipe

§ 192.111 Design Factor#

(F)for Steel Pipe#

(a)Except as otherwise provided in paragraphs (b), (c), and#

(d)of this section, the design factor to be used in the design formula in § 192.105 is determined in accordance with the following table: Class Design Location Factor#

(F)1....................... 0.72 2.......................... 0.60 3.......................... 0.50 4.......................... 0.40#

(b)A design factor of 0.60 or less must be used in the design formula in § 192.105 for steel pipe in Class 1 locations that:#

(1)Crosses the right-of-way of an unimproved public road, without a casing;#

(2)Crosses without a casing, or makes a parallel encroachment on, the right-of-way of either a hard surfaced road, a highway, a public street, or a railroad;#

(3)Is supported by a vehicular, pedestrian, railroad, or pipeline bridge; or#

(4)Is used in a fabricated assembly, (including separators, mainline valve assemblies, cross- connections, and river crossing headers) or is used within five pipe diameters in any direction from the last fitting of a fabricated assembly, other than a transition piece or an elbow used in place of a pipe bend which is not associated with a fabricated assembly.#

(c)For Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in § 192.105 for uncased steel pipe that crosses the right-of-way of a hard surfaced road, a highway, a public street, or a railroad.#

(d)For Class 1 or Class 2 locations, a design factor of 0.50, or less, must be used in the design formula in § 192.105 for each compressor station, regulator station, and measuring station.#