ASME B31G. Allowable corrosion length in pipe

Calculate allowable length of the corroded area in the pipe.

Usage

b31gacl(dep, maop, d, wth, depth, l)

Arguments

dep

design pressure of pipe, [PSI]. Type: assert_double.

maop

maximum allowable operating pressure - MAOP, [PSI]. Type: assert_double.

d

nominal outside diameter of pipe, [inch]. Type: assert_double.

wth

nominal wall thickness of pipe, [inch]. Type: assert_double.

depth

measured maximum depth of the corroded area, [inch]. Type: assert_double.

l

measured maximum longitudinal length of the corroded area, [inch]. Type: assert_double.

Value

allowable length of the corroded area in the pipe, [inch]. Type: assert_double.

References

ASME B31G-1991. Manual for determining the remaining strength of corroded pipelines. A supplement to ASTME B31 code for pressure piping.

See also

Other ASME B31G functions: b31crvl(), b31gacd(), b31gafr(), b31gdep(), b31gmodpf(), b31gops(), b31gpf(), b31gsap()

Examples

 library(pipenostics)

 b31gacl(1093, 910, 30, .438, .1, 7.5)
#> [1] Inf
 # [1] Inf  # [inch] - corrosion is low, no limit for the corroded area length

 b31gacl(438, 400, 20, .25, .18, 10)
#> [1] 2.018
 # [1] 2.018  # [inch] - finite allowed length of the corroded area