A low carbon content stainless steel pipe $($Grade $316$ L$)$ is to be installed to supply $750$

kg$/$hour of $($saturated$)$ clean steam at $7$barg to a process vessel. The pipe run is straight and

the distance between the boiler and the process vessel is $100$ m$.$

Properties of Saturated Steam at $7$barg

Temperature $158\mathrm{.}8$ DegC

Enthalpy of Vapourisation $2084$ kJ$/$kg

Specific Volume of Liquid $0\mathrm{.}0011$ m$3/$kg

Specific Volume of Vapour $0\mathrm{.}3154$ m$3/$kg

i$)$ Specify a suitable flange rating and state rationale;

ii$)$ Size the pipeline for a flow velocity of $20$ m$/$s;

iii$)$ Size the economic pipe diameter for the same flowrate;

iv$)$ Describe how condensate can be continuously removed from the line;

v$)$ What is the consequence of under$/$over sizing the pipework?