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We have received a qoutation of CO2 compressor with two options for casing A- Cast A216ACB with SS lining B- Forged Steel I have two questions 1- what should we chose if the two options are with same price and why? 2- regarding the first option, what is the suitable ss lining thickness. We...

I met with a project manager today who is responsible to build 15 new boilers. He informed me that I have per each boiler 17,000 joints to conduct various NDT tests. I want to make a rough estimation (+/- 10%) of NDT requirements. I have already received rates per day per each test from 6 NDT...

desertfox , unclesyd , CoryPad and, swall Thank you very much for the information you gave me. We were struggling to find any thing guide us to do the shot peening. Regards SHARQ

Dears, good day I am looking for any information that can explain to me what is Shot Peening and what is used for. I appreciate if there are any web references and international standards you suggest for me. Regards SHARQ

That is really an excellent ref. you gave to me brothers. My best regards to both of you DSB123 and doc9960 Regards SHARQ

We are going to conduct a pneumatic test for several pipes that contains different sizes and lengths with different pressure tests.I would like to know what are the radius of risk are for each pipe test?. As we are going evacuate the site at night. Please inform me with the code or reference...

Dears in order to view the column pic. I have flickered it and upload it in the following link http://www.flickr.com/photos/13946217@N02/1417956239/ I hope we can now start analysis in with a visual ideas along with ideas.

unclesyd and ash9144 can you elaborate more about the bump phenomena and how do you think the scenario went on ? We have collected 21 causes but frankly we did not get into this bump at all. I am now re drawing the scenario and found your saying is a strong possible cause. I will go and see...

sirteb the colimn is 31 mtr height, 4.4 dia and contains inside it two sectiond of packings (upper and lower). each section is 9 mtr height. If you want, i can send u a drawing. the problem of this site, u can not insert drawings to explain more Regards

We are suspecting about the line up of the ejectors were not as per procedures which lead to hammering inside the column. Our concerns are the followingh 1- What caused the delta P to raise ? and what does it mean 2- Why the rashig rings found crushed and deformed. 3- Why is the reboiler got...

We have a column used for CO2 Stripping. it contains two packing layesr inside. Each packing is 9 mtr height. The packing is Rashig Rings IMTP # 40. The event happened are as follows 1- Plant was under shutdown 2- As per logic, CO2 unit circulation was kept running, Ejector steam isolated and...

EdStainless: We do chemical cleaning for the refrigerator every 4 years. Because we do eddy current test on it. The tubes can not be subjected to eddy current test unless it is cleaned well. The chemical cleaning is conducted by using some HCL 4% concentration. The result of the chemical...

We use a refrigerator H/E to cool seawater before we return it back to the sea. We did not ?open this refrigerator for more than 6 years. We opened the refrigerator and found ?very hard scale in the tubes. The tubes are made of monel. I have a question with three ?parts ?1-? The scale is hard...

There are two reason may are the cause of hammering: 1- Relief valve (Setting, size, etc..) 2- Relief liquid (220 Deg c) is injected to a much colder system line. The distance of the outlet pipe to the main line is 25m. What we have noticed is the shaking of the outlet pipeline when PSV is...

Hi PUMPDESIGNER It is not vented, The service is very toxic (Contains Ethylene Oxide). The discharge of PSV connected to a 6" pipe that transfer the reliefed product to a bigger size line. Regards SHARQ

Latexman, Hammering because of hot reliefed service is being injected to a cold service. The PSV setting is OK and we do not encounter any problem in PSV setting nor functionality. We encounter only a high vibration caused by hammering. Regards SHARQ

Dear All, We have a 6" PSV (Set 55 KG/cm2, @ 220 Deg. C) Service is Ethylene glycol + water. The relief discharge is injected to a closing system 25 m away from relief point. We encountered a hammering when this PSV opens. An Idea was raised to elongate the relief line to about 60 m long...

BOB,PE make it simple, and ignore my writing ! Samir

Hello why do you put a task if its duration is 0 days. Is it a milestone task ? mile stone tasks doesot have subtasks ! please elaborate more. SHARQ ( Samir)

I was only describing to u what is the static pressure means. Now; When pump is off, the ststic pressure =static head =64.5ft which is the gauge indicator reading. when the pump is on, the gauge pressure reads only the discharge pressure = 97ft. ! Discharge head = TDH + Suction head suction...