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I need help on a Torsional analaysis on a Quintuplex Frac pump.

No it is not, Consider this frac pump is similar to a engine. crank rotates and the piston /connecting rod has a linear motion.

Does anybody know how to calculate mass moment of inertia on a Quintuplex frac pump?

thanks you for your feed back, I will find Tenaris and give them a call.

Thank you. Why would you prefer P110 verses 142 Ksi? On the longer Perf guns, material tested was 142 Ksi.

I am having difficulty in getting perforating gun 3 3/8" OD with a 3/8" wall material in USA, I am looking to buy ASTM A519 1518 Steel Tube, Hardness 28-32 HRC , yield 126,600 PSI, for the Gun Carrier or an altenate material is 4135 Tube, 31-35 HRC, Yield at 142,900 as per the lab results on an...

Thanks for the feed back, it does help.

A pipe contains water at 80 Deg F , pressure inside the system is 15,000 psi, if the pressure has to be released (atmospheric pr), but still needs to be conatined inside a closed chamber before releasing out on ground. How would I achieve this? can someone help.