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Thank you everybody !!!

Hi everybody ! A quick question : My supplier of salted water filters has put the galvanic anodes in the top part of the filters. The entrance of the filters is by the side approximatively at 4/5 of the height of the filters, so the anodes won't be in the water, except during the washing (the...

Hi everybody ! A quick question : My supplier of salted water filters has put the galvanic anodes in the top part of the filters. The entrance of the filters is by the side approximatively at 4/5 of the height of the filters, so the anodes won't be in the water, except during the washing (the...

Thank you dhengr !

Hi ! Could I use this thread to ask a few questions (I did not find in API 620 / 650 hints or answers regarding these issues) : - in designing my storage tank, are there some guidelines regarding the diameter / height ratio to observe ? - do I need to leave some minimum space around the tank...

Thanks ! Unfortunately, my level won't be constant in the tank.But of course I could design a weir box and when my operator want to remove the oil phase, he will artifically raise the level in the tank. So there would be no solution with a baffle if I reinforce it or else ? My constraint is...

Thank you fegenbush ! I'm not sure I can have an oil skimmer as my oil is very paraffinic and I would fear to have the skimmer stucked on its pole if my heat control (heat coil) does not work well / it is too high for the coil... IFRs : what is a saw-tooth weir box ? Thank you !

I have looked at API 620 / 650, and I don't tjink they ever talk about this kind of issues ? Thank you again !

Hello everybody ! I am designing a new oily water tank, and I want to have a compartment with a baffle so that the oil at the surface can flow from the main compartment (the tank) to the oil compartment. Are there any norm / constraint that I need to know ? For example, I have uploaded some...

Thank you, I looked up ASME B.16-5 and everything was there !

Hello everybody ! A quick question as I cannot figure it out by myself... One of my piping classes is for water, it is a carbon steel 600 lbs rating with a CA of 1,27 mm. Material is as API 5L grade B. My Temp / pressure couples are as follows : Pressure (bar) : 102 102 92.7 Temp (°C) ...

2,5m/s will be for rated flow, half for normal flowrate ! My pump is single stage, single suction, radially split volute type

Centifugal pump and the flange is also 12" ! (why would it likely be larger ?)

Thank you littleInch ! If the problem is only the pressure drops due to friction then I won't worry, I have only a few dozen meters between the tank and the pump... :)

Actually I was not very accurate, the water is coming from a tank, and the LSLL is several meters high, so no problem with NPSH (and 80C is design temp, it will be around 40°C). But just to understand, what is the risk with the velocity ?

Hello everybody ! A quick question regarding the velocity in the pump suction pipe : We have a water pump designed for 100 000 bbld. The water is @ atmospheric pressure and 20 - 80°C in the suction system. I would like to use a 12" pipe for suction, but the velocity would be of 2,5 m/s, and I...

Thank you LittleInch. Actually that is what we have in our process. But we have some operating problems and that is why we want to have this skimming option in the storage tank. regards, Daniel

I'm sorry... my copy of API 650 does'nt have a section 5.7.2.3 ???

The tank won't be at a same level continuously (thanks fegenbush).

Thank you IFRs for your answer ! Yes that would be one solution. But are there any alternative ? What are the best pratices of the industry for skimming an oil phase at the surface of an oily water tank ? Thank you !!