@tsarbomba
To reiterate what others have said, a more complete picture of the situation would be helpful.
Is this a new piping installation? A retrofit where you are attaching a vessel and expansion joint to an existing line?
What is the piping configuration below this mitered elbow? Can we...
@tdt108
A little more detail would help here. What is the pipeline size? Design/Operating Temp & Pressure? Material? Etc. What amount of growth are you anticipating?
Depending on the line size, adding an extra bend or two to the line may be more economical than a spring support. That...
I would like some help clarifying what is allowed and what is not regarding B16.5 and selection of blind flange vs reducing flange.
Due to a combination of events and space constraints, we have a 4" NPS nozzle on a tank that needs to immediately reduce down to a 2" NPS.
If I am understanding...
Take a look at https://www.behringersystems.com
Not sure if this is exactly what you are looking for but they have some pipe support blocks similar to what you have in your picture. You said this is for a cold pipe, a quick look at one of the spec sheets and they have material that can go down...
@Tug,
Thank you for the insight. "A lot of design in these systems is left up to the pipe fitters themselves", I'll keep that in mind the next time I step on a ship :P
@Ult,
"So even though in the 3d model it looks like it works it doesn't necessarily mean that it is feasible in the real...
@Ultganon2437
No worries on the questions, we all were new at some point.
Because SO flanges work by inserting some of the pipe into the flange body to weld it, you can run into bolt clearance issues with smaller sized tees and elbows. In addition to that it can be a challenge for the...
I don't know if its supposed to be 1500# but the bolts are correct for 150#.
If it does end up being a 1500# flange then this configuration will definitely not work.
@TugboatEng
I'll have to defer to your expertise as I have no marine piping experience. Out of curiosity why are weld necks not used?
In my experience it is generally considered poor piping practice to use SO flanges at fittings unless there is an absolute need to save the couple inches and...
Who drew this Iso? Someone at your firm? Maybe go ask them what the design intent was.
This Iso smacks of inexperience and should be rejected.
It is all over the place with irrelevant dimensions and angles. A huge redflag for me is using a SO flange on a cutback ell. This is not typical and...
@HRS713
Of interest to you may be the Ladish Catalog 55.
Beginning on catalog page 263 there are the ratings for 150# thru 2500# according to B16.5-1953.
A PDF of the full catalog still available at this link:
http://www.hackneyladish.com/catalog/All.pdf
Of interest is this Standard Interpretation: https://www.osha.gov/laws-regs/standardinterpretations/2019-10-18
"if the size of a rest platform is such that a worker climbing the fixed ladder could fall past the platform and more than 24 feet to the ground or a lower level, the employer must...
@JLNJ
I read through some Standard Interpretations and it seems that they no longer give exemptions for ladders that are intended to be used as emergency egress only (which mine are).
This seems a little silly because in an emergency situation plant personnel aren’t going to take the time to...
Thank you JStephen and STrctPono for your replies as well.
It had been some time since I had to conceptualize a platform layout and I got a comment about the length of the ladder and was not aware of the new rules.
In the link provided by STrctPono, OSHA clarifies that even if a ladder is less...
I'd like some clarification on the Fixed Ladders regulations posted by OSHA. They seem to contradict themselves in certain areas. I hope I placed this in the correct forum, it seemed the appropriate place, if not, apologies.
My concern is related to the maximum climb on a fixed ladder, when...
