Page 149 - Estimators Piping Man Hour Manual

132 Section Two-FIELD FABRICATION

HYDROSTATIC TESTING

For Pressures Not Exceeding 4,OOO P.S.I.

Carbon Steel Material

NET MAN HOURS PER LINEAR FOOT
Standard Extra Hvy.
Pipe Pipe& Pipe& SCHEDULE NUMBERS
Size O.D, Sizes O.D. Sizes
Inches 3/8" Thick 1/2" Thick 20 30 40 60 80 100 120 140 160
2 "Or Less 0.014 0.016 „ „ 0.014 „ 0.016 „ .. „_ 0.025
2-1/2" 0.015 0.017 -- -- 0.015 .. 0.017 -- -- -- 0,028
3 0,017 0.019 .. 0.017 „ 0.019 .. .. 0,031
—
4 0.020 0.024 „ — .. 0.020 - 0.024 .. 0.032 -- 0,036
_
5 0.022 0.026 - 0.022 „ 0.026 - 0.035 - 0.041
6 0.025 0.029 „ .. 0.025 .. 0.029 - 0.039 - 0.047
8 0.027 0.032 0.027 0.027 0.027 0.030 0.032 0.039 0.046 0.052 0.057
10 0.031 0.035 0.031 0.031 0.031 0.035 0.041 0.049 0.055 0.063 0.070
12 0.034 0.039 0.034 0.034 0.038 0.044 0.053 0.061 0.068 0.077 0.087
14O.D. 0.038 0.044 0.038 0.038 0.041 0.050 0.062 0.069 t).078 0.091 0.106
16O.D. 0.044 0.049 0.044 0.044 0.049 0.062 0.075 0.086 0.097 0.114 0,134
18O.D. 0.051 0.058 0.051 0.055 0.064 0.077 0.095 0.108 0.123 0.141 0.164
20 O.D. 0.057 0,067 0.057 0.067 0.078 0.095 0.115 0.133 0.151 0.172 0.203
24O.D. 0,076 0.086 0.076 0.087 0.115 0.141 0.175 0.200 0.230 0.265 0,304
Above man hours are average for testing completed process systems, for a maximum holding time of one hour, and
include time for the following operations when required:
1) Place and remove blinds and blanks as required.
2) Opening and closing of valves.
3) Removal and replacement of valves, orifice plates, expansion joints, and short pieces of pipe as may be
required.
4) Block up and block removal of spring-supported or counterweight-supported lines.
5) Air purging of lines before hydro-test.
6) Soap testing joints where required,
7) Drain lines after testing.
If individual segments or spools are to be tested separately multiply above man hours by a factor often (10).