UA-69298255-1 UA-69298255-2 Blog Little P.Eng. for Engineers Training & Engineering Services

June 22, 2020

Unrestrained portions of pipeline systems shall be designed to have sufficient flexibility to prevent thermal expansion and contraction from causing excessive stresses in the piping material, excessive bending and unusual loads at joints, and undesirable forces a...

June 22, 2020

Note: In the following equations, compressive stresses are negative and tensile stresses are positive in the 
algebraic equation. 

4.7.1 Combined hoop and longitudinal stresses
Unless special design measures are implemented to ensure the stability of the pipeline, the h...

June 21, 2020

4.6.1 Applicability
The general stress design criteria for pipeline systems in this Standard are limited to elastic stress analysis for the design conditions in Clause 4.2 and provide design specifications for

a) design wall thickness;

b) maximum allowable temperature di...

June 21, 2020

4.5.1 Buttwelded joints
Buttwelded joints shall be as specified in Clauses 7.2 to 7.15.
Consideration shall be given to avoiding welding stresses that can result in damage to any cement- mortar lining.
Where piping containing partial-penetratio...

June 20, 2020

Isolating valves shall be installed for the purpose of isolating the pipeline for maintenance and for response to operating emergencies.
Valves shall be at locations accessible to authorized personnel and protected from damage or tampering, and shall be sui...

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