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Service fluid is LPG.

hi.. Mounded Bullet DP = 17.5 barg DT = -46 / 80 deg C Based on the above design conditions I have selected MOC for Shell/Dish plate SA 350 LF3 and same is procured by vendor. Now client is not accepting this material because of Ni content of 3.5% as it is specified in the client specification...

hi.. Mounded Bullet DP = 17.5 barg DT = -46 / 80 deg C Based on the above design conditions I have selected MOC for Shell/Dish plate SA 350 LF3 and same is procured by vendor. Now client is not accepting this material because of Ni content of 3.5% as it is specified in the client specification...

hi... can anybody solve my problem? There is a vessel (bullet) having the minimum required thickness (or we can say calculated) is 37.483 mm after adding CA as per ASME code formula. I have mentioned in my MDS shell thickness min 38 mm thk. Now vessel has been ordered to vendor and he is...

ok .... There is one lube oil Cooler (S&T Heat Exchanger AES type). Design Pr. Shell side 10.55 and Tube side 10.55 Design Temp. shell side 149 deg C and Tube side 75 deg C Fluid Shell side is Lube oil and Tube side is cooling water. shell ID 489 mm Tube length is 3658 mm. I think these...

Hi.... Please let me know how to select the gasket from ASME VIII-I Appen-2 table for flange design?

hi..... I want to know that, is there any special consideration in ASME vessel design for cryogenic fluid? Thanx in advance.

ok thnx.... lets have some conditions Design Temperature= -50 to 60 deg C Design pressure = 16 Barg Fluid = Hydrocarbon Now with these conditions, what will be the MOC of vessel i.e CS or SS? If it will be CS then what will be the CS material. similarly for SS. Hope this clears my query.

ok.... in simple just explain when we use SA 516 and SA 515 as both have similar Mechanical properties but little different in Chemical properties? I need proper answer other than written in ASTM A516 and A515 as A515 is use for "intermediate- and higher-temperature service in welded boilers...

Hii... In Sec II part D, allowable stress value are given for temperature limit from -30 to 900 deg C. If the design temperature for any Pressure vessel is min. -100 to -40 or below -30 deg C, then how to select/ arrive the allowable stress? Also, How to decide the material for Pressure Vessel...

Thanx for the reply.... But is there something like, the height of the conical section should be (D1+D2)/2 x (3 to 4) and the apex angle max. 30 deg? where D1 and D2 are the diameters of the two upper and lower cylindrical shells.

hi..... Please let me know, how to decide the height of conical section between two shells having different diameters in column or any pressure vessel, if TL/TL height is not given by Process in PDS. What is the criteria to decide it? Thanks in Advance....

Thanks for the reply. But I saw a example in which bottom shell course had 25 mm thickness and IInd one had 16 mm and then the again on the 5th shell course the thickness was 25mm. Why is it?

Hi....... Please let me know, why there is a thickness variation in column shell sections at same design condition. Like bottom shell course have more thickness and IInd may be same or less and so on. Thnx in Advance. Regards Arvind Kumar

Hi Chicopee... i got the answer that i want in a proper manner in technically. Actually, the head having more surface area has less thickness at same design conditions bcoz pressure distrubution is more proper way. Hemisphere having more S.A than ellipsoidal and ellipsoidal having more than...

No, I am not asking about derivation.... I just want to know the why there is a difference between thicknesses of variouis heads.... I try to clear the thing.. For vertical flat head vessel, the stress/pressure acting on the upward direction to the head and shell juction and then turn 90 deg...

Still not clear..... You are saying about different formulas derived by investigator due to different geometrical configuration. But i would like to how these formulas derived. does it related to depth of the heads as all heads has defferent depth. so the behaviour of stress/pressure acting on...

As per the ASME heads thickness formula for various D'ends, there is variation in thickness for same design conditions. Can anybody explain me the reason for that. Thanks & regards Arvind Kumar