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Hi All, We need to make a small 16 gallon tank to act as a intermediate tank between day tank and filling machine. The tank needs to be designed for 14.5 psi internal pressure and full vacuum. MOC is AL6XN and tank will be designed as per ASME code but it will not be stamped. I want to know for...

Thanks for your responses...

Hi all, In my area of work we frequently use stainless steel (316L) and copper tubing in FMCG production plant. I want to know if stainless steel ( say SS 304 )and copper hardware are required for supporting those tubes respectively? Is there any chances of galvanic corrosion or any other...

Thanks MJC... Is the criteria of any vessel to be stamped or not is based on Design pressure or maximum allowable working pressure? For instance my design pressure is 14.9 psig and MAWP is 15.5 psig in that case whether the vessel needs to be code stamped?

The vessel, infact it is tank at atmospheric pressure, will be installed in Ohio, US. So ASME standard will be followed. My question is related to the fact that if the design pressure is specified as 15 psig whether it will come under pressure vessel as per ASME boiler and pressure vessel code...

All, I want to know if design pressure of any vessel is 15 psig whether it comes under pressure vessel category and its stamping is needed? Thanks in advance.

Hi All, I want to know whether 2B mill finish is equivalent to finish with 32 micro inch average roughness (Ra). Context is for sanitary application. As per 3A, the surface roughness should not be more than 32 micro inch. I was told that 2B mill finish is equivalent to 32 Ra finish. Just want...

Thanks europipe.. So If I will have to use a 8" pad flange for tank whether I need to specify 8" ANSI B16.5 flange or just tell the outer dia and thickness of the flange and matching bolt circle with standard flange? Is thickness standard or equal to ANSI flange?

Hi, I want to know that pad flange on tanks are different kind of flange or B16.5 flange? Thanks in advance.

Tank will store perfume microcapsules. As per the piping specification sheet no corrosion allowance recommended so I guess by nature its not corrosive.

So am I right in saying that first welding alters the properties of heat affected zone and second welding temperature at the same place may deteriorate it further which can decrease the fatigue strength? If I want to determine whether after welding on a seam weld the tank will be in operating...

Thanks metengr for quick reply. Whether overlapping HAZs will make the weld weak or what will be the disadvantage of overlapping HAZs?

Hi All, I am working on modification of SS 316L atmospheric tank. The design internal pressure is 10 psi, design external pressure is 2 psi and design temp is 250 deg F. As per the drawing the vessel is manufactured as per ASME Code section VIII Div 1 but it is not inspected and stamped. My...

Guys, I started this discussion to clear my doubt why a vendor gives a mass unit in the heading of weight and whether he means that given value represents the mass or weight? Please see the website for my doubt: http://www.fisherregulators.com/products/literature/sr8/ Now after reading the...

Since I am more comfortable with working in Newton as force than Kgf as force that's why I wrote to convert it into Newton. But Kg implies force when given as weight that's the crux of discussion.

Sorry I made wrong statement. "when weight is given as Kg it implies Kgf and we need to multiply by g to convert to force to use as static load" It should be: "when weight is given as Kg it implies Kgf and we need to multiply by g to convert in 'Newton' to use as static load"

I guess I got the concept. When weight is given in pounds there is no need to think about converting to force because pound (mass) and pound (force) both are numerically equal on earth. Hence same numerical value shall be used as static load. But when weight is given as Kg it implies Kgf and...

nutte, I talked about spring weigh and balance because when I go to purchase any commodity it is measured in kg. The ref weight they keep on one side of balance say 1 kg and the commodity on other side say sugar. I wanted to know whether that 1 kg ref weight represents mass and gives mass value...

After getting so many responses I think its good to conclude that if an object is weighed on spring scale, the weighing scale reading will show its weight and to include that weight (force) in calculation as static load I need not to convert that weight into force by multiplying with...

@ aayjaber I feel the problem is not the consistency of units as long as I am working in SI. (I am not much familiar with USCS or FPS or any other for that matter). My basic confusion is the engineering aspect of mass and weight. I am pretty clear about difference between mass and weight in...