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I have a 48" oil line having gate valves on it. A gate valve is defined by two node numbers (a rigid). I want a one restraint for a valve. How can I put the restraint. On which node should I put the restraint. I want the restraint to support the valve by the center of gravity. thanks in...

For fire water pump having 20" suction nozzle, is it required to install a strainer. The fire water is supplied from a water tank.

Hello all, we have a 4500 meter 48" pipe line. 3000 meter of it is designed in accordance with asme B31.3 and 1500 meter of it is designed in accordance with asme B31.4. the line is continuous line. 31.3 states test pressure of 1.5 X Desgin pressure. 31.4 states test pressure of 1.25 X Desgin...

hello all, I am doing stress analysis for 6" fire water line for crude oil tanks. Should I include wind loads. In small diameters do we take into account wind loads. thanks in advance

Hello all, I am preparing a data sheet for strainers which are located on the suction line of the fire water pumps. Should these strainers be temorary? In which code I can find information about strainers. Does anyone knows any source about strainers. Thanks in advance. Prens

Hello all, I am preparing a data sheet for strainers which are located on the suction line of the fire water pumps. In which standard I can find information about strainers. Does anyone knows any source about strainers. Thanks in advance. Prens

Hello All, I need to get some sources about the theory of the vortex formation at the tank outlet and vortex breaker design to prevent the vortex. The tank is a 21 meter height and 92 m diameter crude oil tank. Outlet pipe is 48". There are some formulas which is related with froude number...

Hello All, I need to get some sources about the theory of the vortex formation at the tank outlet and vortex breaker design to prevent the vortex. The tank is a 21 meter height and 92 m diameter crude oil tank. Outlet pipe is 48". There are some formulas which is related with froude...

Hello all we are constructing a 48" crude oil line in accordance with ASME B313. we'll take a branch from existing line by a hot tap operation. How can I find an information about at what temperatures does the impact have to be carried. thank you all.

hello all, I am calculating “available npsh” for a drain pump (centrifugal) on a crude oil line. It will drain the line starting from a tie-in point. Tie in point elevation is 111 meter, suction nozzle elevation is 101 meter. After tie in point the line goes up to elevation of 116 meter. 1-...

hello all for a petroleum line, Is the "test pressure" is 1.5 X "Design pressure" according to ASME 31.4 thanks in advance

Hello all, I am analyzing a pump discharge line. After a distance the line goes under ground. How can I model this below ground portion of pipe with Caesar. Should I treat the soil as a restraint. Thanks in advance

hello all, I want to calculate wall thickness of 70/30 Cu-Ni (B466) pipe. I am using the formula that is from B31.3 para 304.1.1. Is the procedure same as carbon steels. Should I add corrosion allowance to pressure design thickness, or assume CA as zero?. Finally are the wall thicknesses of...

hello all, I am doing a surge analysis on a procss line. Is the Cv values are different for normal gate valve and expanding gate valve. Do they behave different at valve closure. Also Can I use "surge pressure+operating pressure" for max shut off pressure for a valve actuator selection...

Hello all, I want to calculate the wall thickness of 48" R=5D induction bend for onshore pipelines. (hot bend) Is the procedure same as calculating w.t. of straight pipe acc. to B31.3? In the standard there are som argument about SIF. Is the wall thickness of hot bends is related with SIF...

Is the friction coefficient of a barred tee is different from a normal tee. If it is different How can it be determined. I read some books but I didnt get any info about barred tee's friction case. thanks in advance