Recent content by B.L.Smith

Hi, In many project distance between main beams of piperacks are 6 meters. According to the project pipe support span table, the allowable span for gas lines 12” and above based on line thickness, temperature, and insulation is a minimum of 12 meters. Which of these approaches is the best...

Most of the time flexible hoses are modeled similar to an untied expansion joint. It should be mentioned effective ID should be neglected because the braid of the flexible hose withstands the pressure thrust of the internal bellows/rubber. Displacements should be checked carefully especially...

Dear friends, I want to prepare pipe supports for a finger-type slug catcher which fingers in this equipment need to be sloped. I'm not sure about the types of supports for this type of equipment/piping. I have attached a picture regarding two ways of the installation of shoe supports on the...

Thank you very much for your responses. I have three more questions about pig trap systems: 1- As you know pipeline thickness changes depending on location class. What is the allowable value for changing in the pipeline ID which does not affect pigging? 2- What is the proper distance between pig...

Thank you very much, friends, 1- If I'm not mistaken according to ax1e explanation the main reason for using strap supports is due to the pigging force on bends. After reading your comment on this issue I searched several pipeline handbooks, but I couldn't find any handbook that addresses this...

Dear Friends, I have two questions regarding pipeline design and supporting: 1- In most cases when a buried pipeline comes from UG to AG and connecting to pig trap, the pipeline supports between insulating joint and pig trap are hold down clamps/straps. I don't understand the reason for using...

THANKS

Hi all, I've seen adhesive name 3M-43-23 in a document. I couldn't find any datasheet for this adhesive on the internet. Could you please help me to find its datasheet. Also, what is the Foster equivalent of this adhesive?

Sorry for the lack of data. The operating temperature is 70 C.

All joints are butt weld. and the operating temperature is 70.

Thank you LittleInch for your response. One end of the pipeline is connected to a branch in the plant and another end is connected to a branch from the pig receiver inlet pipeline. If I don't use anchor blocks at both sides, it may need to consider the expansion loop fo the line. Is it a...

Dear friends, As I know the anchor block is used if there is a need to avoid transmitting the UG pipeline's displacement to AG. But a question raises how much displacement is a concern? I am working on a project which involves an 18-inch gas pipeline with 1.2 km length from pig receiver...

Dear Sirs, We are providing a plot plan for a tankage area, including C3, C4, C5+, condensate, and fire water tanks. Which of these tanks need access road through the dike wall(access to inner dike space) and which of them just need stair for access to tanks? Regards, B. Smith

Dear Sirs, Does shell elements results are correct at corners? For instance at junction of two pipes.

Dear friends, I'm performing stress analysis of a ducting system(large bore piping). Do I need to consider effect of circumferential and longitudinal weld in my study? or I can consider all welds same as ducts? Is it necessary to apply Stress concentration factor?