Using B31.3 code to analyze the flexibility of the FRP piping may not be the right one. The FRP piping design should be strictly followed the manufacturing guideline, simply because each FRP supplier has its own method of deriving the pipe properties. If this info is not available at time of...
Hello all,
I'm using using Caesar II to model the piping system with the use of tied-rod expansion joint to reduce forces and moments excert on equipment nozzle. The joint was modeled per Caesar II application page 5-6 with restraints RX, RZ, and rigid Y.
The system designed to allow the...
xhpipe,
Thank you for the info. I have read it, but still don't have a clue. Could you post more detail how to run and evaluate the piping system with Ceasar II if you have done it.
Thanks in advance.
Chatrik,
Suggest you can get the following papers:
- Failure of Safety Valves due to Flow-Induced Vibration by J.T.Coffman; Oklahoma Gas and Electric Co. & M.D.Bernstein; Foster Wheeler Energy Corporation.
- Control of Flow-Induced Vibration in Safety Relief Valves by H.RSimmons, Sr. Research...
Hello Everyone,
Has anyone done the Modal analysis with Caesar II? I have a steam piping system experiencing of vibration problem and attemp to run modal analysis with Caesar II, but don't know where to start. I appreciate if someone can help how to set up the control parameter and determine if...
A steam line design condition at T=1050 F, P=1340 psig. Is it practical to have stop valve a flange connection instead of butt weld? What is a major concern if the flange connection being used from the stress point of view? Your input is appreciated.
Regards
xhpipe,
It Sounds odd, but that is what the client wants to use. You have mentioned B31.3 methedology of developing the allowable stress value for non-list material. Is it the same that ASME II-D Appendix 1 has offered? I guess I have to come up with something practically exceptable from the...
xhpipe,
Thanks for the question. I don't know what code it should be used. This is a plain end seamless pipe for high-pressure pipe-type cable conduit. The material specification was initiated by the IEEE Insulated Conductor Commitee in recognition of the need for a specification embodying the...
I'm searching the allowable stress at elevated temperature for ASTM designation A523. ASME II-D is not listed. I do found the Yield strength at room temperature. Any help to find this info is appreciated.
Regards,
