Search results for query: *

Hello everybody, my question falls in the grey-area (let's call it nobody's land) between ASME Codes and European Norms (EN). I am designing a plant according to EN 13480 (the European equivalent of ASME B31.3). Flange design is in accordance with EN 1092-1 (the European equivalent of ASME...

Hello everybody, I know this Forum is for ASME-related topics. However, my question falls in the grey-area (let's call it nobody's land) between ASME Codes and European Norms (EN). I am designing a plant according to EN 13480 (the European equivalent of ASME B31.3). Flange design is in...

I am working out a EIA for a new thermal power plant in India. For the make up water of the cooling tower sea water which would be desalinated and clarified to a tds content of 32,000 ppm will be used. The common practice of operation of cooling tower indicates a COC (Cycles of Concentration)...

Dear all, does anybody know why the Norsok STD L-005 limits the temperature application range of compact flanged connections to 250 °C? For certain fluid services my Client has had bad experiences with ASME flanges and now he is asking me (I'm developing engineering services for him) to...

Dear all, we lost traceability on some small pup-Pieces and we are not 100% sure it is LTCS (A 333 gr 6) as per line requirements or if CS (ASTM A106 gr B) was used. We can not make destructive examinationand we proposed to verify it by the means of grain size measurement (ASTM E112) of...

Dear all, my client is rejecting all hexagonal head plugs (ASME B16.11) aking the replacement by round head ones (ASME B16.11). I barely remember that some client prefers round head type for safety reasons but now i can not find exactly which could be the concern on hexagonal type, can you help...

Hi all, please help me!!! On a 42'' #150 line a flanged joint showed a leakage, the flange connection (Flg per ASME B16.47 A, A350Lf2, Blt A320L7, gasket: Spiral Wound AISI 316/Graphite with inner AISI 316, Outer CS) was opened and the gasket appeared destroyed. It happened two times more (3 in...

Hi, ASME B31.3 calculation for Hydrostatic Pressure Test can be limited follows: (c) if the test pressure as defined above would produce a nominal pressure stress or longitudinal stress in excess of the yield strength at test temperature or a pressure more than 1.5 times the component rating...

I am specifying valves for a oil centre. In this specific case, the fluid is hydrocarbon with a high presence of hydrogen sulfide H2S (up to 160000 ppm). The Owner of the plant defines "Lethal Service" each H2S concentration greater than 1000 ppm. The piping class is designed according to Cat.M...

Hi to all. When a piping line specification requires 6mm of corrosion allowance, do you consider necessary to indicate this requirement also for valve description? Considering that valve's body thickness (according to main standard: API, BS, ASME) is greater than the pipe wall thickness...

Hi, i'm a piping material engineer, i have to prepare two piping line classes for Boiler external piping according to ASME B.31.1 code. I reviewed a lot of old piping classes issued according to ASME B.31.1 design code. For all these specifications, materials were specified according to ASME...

Hi!!! I have to specify several no slam check vale on compressors and pumps discharges and for other services. My choice, of course, depends on the Dyanamic Characteristic and low pressure drop CV. For the first point, all manufacturers agree that Axial Type (mokveld, Noreva, etc)are the fastest...

Hi!!! ASTM B 705 and ASME SB705 are std's for welded pipe without filler metal.I can't find other ASTM std for welded Pipe UNS 08825 (Alloy 825) and listed in ASME B.31.3 (Which is the contractual Piping Design Code). For the size and thickness i need, all vendor wrote me that they can supply...

Giuss (Mechanical) Feb 25, 2008 Hi, Someone can clarify me how much difference exist in flow regulation capability beetwen a globe valve swivel plug and a globe valve with spherical or conical shape plug. In Standard applications applications (piping valves on normal fluid service up to 600...

Could some one help me suggesting some rules for measurement of the temperature of bulk materials on mechanical belt coming from a fusion prcess? thanks Antonio

I have to design an ash silo ash density is 1,44 ton/cum the capacity shall be 90 cum. Internal pressure is due to the statichead of ash which will be the optimal ratio between height and diameter?? thanks

I have to make the calculation of a coke drum thikness at the conical section. 1.design Temp. 480 deg celsius 2.design pressure 6.158 3.halh apex angle 30 deg 4.diameter 9800mm. now from asme II part D table 1-A the value of the maximum allowable stress is 14.22 ksi at the designed...