Schedule 40 Pipes and Sch.80 Pipes
Schedule 40 Pipes and Sch.80 Pipes
(OP)
Hello everybody,
I'm looking for document that can helps me to find pressures limitations for pipes under Schedule 40 and Sch. 80, this is for Steel pipes for Natural Gas Pipe line according to ASME B31.8
Also the same question but it's for HDPE piplines.
I'm looking for document that can helps me to find pressures limitations for pipes under Schedule 40 and Sch. 80, this is for Steel pipes for Natural Gas Pipe line according to ASME B31.8
Also the same question but it's for HDPE piplines.





RE: Schedule 40 Pipes and Sch.80 Pipes
RE: Schedule 40 Pipes and Sch.80 Pipes
Is 49 CFR Part 192 applicable?
If so, you must determine piping material, corrosion allowance, area classification, etc.
Also, the inspection interval may be a factor in your choice because % of allowable effects regulatory inspections.
RE: Schedule 40 Pipes and Sch.80 Pipes
For the country, no matter there are no standard (Africa). We are under ASME and ASTM standards
RE: Schedule 40 Pipes and Sch.80 Pipes
In addition, you need to know more about the pipe than just steel pipe sch 40 or 80. Different grade of steel had different allowable stresses; seamless pipe is and welded pipe is different, etc. You need to check all that before you can determine the pressure rating of your pipe.
RE: Schedule 40 Pipes and Sch.80 Pipes
t = PD/(2SFET), where:
P=Design pressure, psig
D=nominal outside diameter of pipe, inches
S= specified minimum yield strength, psi
t=minimum wall thickness, inches
F=design factor
E=longitudinal joint factor
T=temperature derating factor
Once you calculate it, round up to the nearest size standard API5L wall thickness.
Greg Lamberson
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Schedule 40 Pipes and Sch.80 Pipes
B31.8 - 2003 Gas Transmission and Distribution Systems
Description: This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities.
Price: $173
http://
All the rest of the B31 Piping, too:
http://
RE: Schedule 40 Pipes and Sch.80 Pipes