Search results for query: *

Hi, I am looking for some insights for this topic. A Fire water storage tank to be constructed and installed in a mining site with 20 m dia by 20 m height. I am wondering which standard api650 or AWWA D100 require thicker shell for this case ? Which standard will be cheaper on overall storage...

Georg thanks for clarification. Using RO at bypass can be help to reduce pipe design pressure at PS1, but I will have to calculate time the pipeline is drained before it freezes in winter. I think for now I am good with assumptions. thank you all.

Hi georgeverghese Can you explain further about formula you discussed and where 14m/s is coming from.

I will add another reply for georg. Discussion with 1503-44 and littleinch: Please let me know if you are in agreement with my notes below: The PS1 Head range is 250-275m Rated condition 610 @ 275m 100% rpm 275m 610m3/hr ‎94٪؜ rpm 250m 573m3/hr The actual flow will a bit less than 573 but...

Discussion with LittleInch: whether variable speed pump selection for this example makes sense or not is an excellent topic you raised. 1-I will investigate further once we move to the next phase but for now I assume VFD for capex. 2- Systems with high static head to friction (10/1 here) use...

Thank you very much 1503-44 and LittleInch for your tips. let me first discuss with 1503-44, I will add another post for LittleInch: I have to add more assumptions and repeat my Q1. Assume there is a electrical isolation valve at discharge pond and vent and vacuum valve at high points in...

Hi, I am looking for some advise on the reverse flow for below scenario: I am designing a pipeline and pump station to transfer water from low elevation to high elevation and for simplicity I use imaginary numbers: -Pipeline size 16” -Pipeline length 5500m -Flow rate 0-610 m3/hr (variable...

Hi LittleInch Let me see if I can add sketch. going back to the concept, do you agree that EJ won't compress unless pipe force from thermal expansion exceeds the thrust loads developed inside EJ?

Hi, I have a question about EJ used on piping and appreciate any feedback on it. My piping is connected to lube oil filter from one end and to heat exchanger from other side. It is elbow and loops on it to add flexibility. It is water cooled heat exchanger and plate type. for simplicity assume a...

if we use Victaulic coupling with groove cut on pipe designed to ASME B31.3 do we consider groove depth as mechanical allowances and subtract it when calculation pipe thickness per 304.1.2 for straight pipe under internal pressure ?

Oldestguy requested further info: I have 400 meters 6 inch steel pipe in a ground borehole with dip angle of 70 degree. Pipe is supposed to be secured in place by adding grout between pipe gap and hole. Pipe OD is 168 mm and drill hole is 260 mm. How to ensure grout is going to secure pipe in...

I have used EN material for all the piping and need to select EN half coupling but as you said it is difficult and I can't find right standard.

Thanks for input. If I understand it correctly by testing we can get shear strength of grout to soil and grout to casing? and using above formula we can check if grout strength is enough to hold casing and media in place or even strong enough to add additional end loads.

Not sure if this is right place to put this question. I have undeground borehole with casing pipe with grout to hold it in place. I look for basic formula to see if grout is right to hold pipe in place. I did some search looks I have to calc pull out force in this case first and then calc...

Thanks pedarrin and bmir, With using hp-70es vic coupling do you think pipe support should be installed right at elbow or it is okay to be installed somewhere on pipe upstream and downstream of elbow? 70-es has higher allowable tensional end loads than my piping full thrust loads however it has...

Design standard is en 13480-3 and I look for a 2 inch branch connection to 6 inch pipe to be used for pressure sensor instrument. Branch connection should be female threaded to accept pressure sensor. Since design pressure is 120 bar code requires welded connection with reinforcement pad.

I am looking for European standard for forged welded or threaded steel fitting such as threadolets. any one can help? Specifically I look for 80 bar 2 inch threadolet dimensions

How to calculate momentum force on elbow?

Still can’t get good idea on flow force on pipe elbow. Based on formula force of flow on pipe elbow equals internal pressure by pipe area plus or minus flow momentum change. However when looking for force required by support to hold elbow in stationary condition it is said only to consider...

Anyone knows how to calculate it?