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...
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...
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...
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?
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 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?
Dear Friends,
I'm trying to perform stress analysis of high temperature(T=510 C) ducting with 2600mm in diameter and 10mm thk. This duct includes several miter bends and expansion joints based on basic design. The software I uses is CAESAR II. But I know SIF and K factors are not calculate...
Dear Sirs,
I'm performing stress analysis for a tank. Civil department sent me an email about settlement of the tank for different conditions. He specified settlement under operating, hydro test and seismic condition. In most documents settlement at operating condition are considered for stress...
Dear Sirs,
I've performed stress analysis on a buried pipeline which includes a Line Break Valve(LBV) before the pipeline become aboveground.
According to my analysis, the displacement of the LBV is about 110 mm. Is this displacement allowable? What is the allowable displacement of the LBVs or...
Dear friends,
I've search and read several handbooks about calculation of traffic load on a buried uncased pipeline at crossing of the pipeline and the road or highway, but none of them include calculation for a crossing which there are bearing slabs between the road surface and the pipeline...
Dear Friends,
I have two questions. I'd appreciate it if you could answer.
1- Does anti-vibration clamps with springs or washers need preset load?
2- How can I input this preset load in CAESAR II?
Best Regards,
Dear Friends,
I'm new in stress analysis and I'm doing stress analysis on a pipeline connected to a pig trap; about 25 meters of pipeline is above ground and existing part is underground. According to the site condition document "Average minimum absolute ambient temperature" of the field is...
Dear Sirs,
I've seen anchor of pipeline before it goes aboveground at above and underground interface. This anchorage is usual at aboveground Line Break Valve(LBV) stations and crossing of pipeline with river that the pipeline pass through a bridge. Can you explain the reason of this anchorage...
Dear Sirs,
If two companies are doing stress analysis for a pipe on different side of a tie-in point, they should consider effect of other side of tie-in point on their stress analysis. But other side route or supporting is not specified. How they can consider effect of other side piping on...
Dear Friend,
I have some questions about anchoring of a pipeline, that I've mentioned bellow:
1- where in pipeline anchor support should be considered in a pipeline which in buried in some portions of its route and is aboveground in some others?
2- I'm working on a pipeline which a line break...
Dear friends,
I want to specify seven supports on 50D bend of a pipeline; but in CAESAR II, in bend section I can specify three supports in different angles. How can I specify more than 3 supports in different angles of a bend in the pipeline?
