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Q. Flanged pressure vessel nozzles?
The Designer is responsible for ensuring that the facings, bolt circle, number of bolts, and size of bolts of vessel nozzles, match the mating piping flanges. Flanges for all flanged pressure vessel nozzles, equal to or smaller than NPS 24, shall meet the requirements of ASME/ANSI.
These are standard carbon, low alloy and austenitic stainless steel flanges of the integral hub, welding neck style, that are dimensionally the same as MSS SP-44 flanges. The materials covered are identical with those in Materials Group 1 and 2 of ASME/ANSI B16.5. Line valves and machinery nozzles may be provided with flanges of MSS SP-44 dimensions. Therefore, vessel nozzle flanges, meeting the dimensions of Series A flanges, may either be necessary or desirable. Series A and Series B flanges are not dimensionally compatible in all sizes.
Q. Describe the Selection of elctrodes? The selection of a proper electrode for electric arc welding is very important to obtain a sound welded joint of proper strength. The va
(a) A member ABC is formed by connecting a steel bar of 20mm diameter to an aluminium bar of 30 mm diameter, and is subjected to forces as shown in figure. Evaluate the total defor
Q. Material Selection for Insulation? Material for 15ºC to 650ºC temp range is Calcium Silicate, Manville Thermo-12 or approved equivalent. Material for -18ºC to 230ºC temp.
strain energy = m2l/2Ei
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Coil: A coil is used in ignition system to increase the voltage supplied by the battery or magneto. Coil
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