all rector or exchanger have spherical/semispherical end why?

all rector or exchanger have spherical/semispherical end
why?

Question Posted / sumit5409

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all rector or exchanger have spherical/semispherical end why?..

Answer / chaitanya pithawa

because the pressure of the fluid is distributed.By making
this type of end,the force is divided into two.So the axial
force will reduce which will more safer.

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all rector or exchanger have spherical/semispherical end why?..

Answer / julz

also because heat can be distributed equally on complete surface

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