High points vents and low point drains are a small but important and necessary detail of the piping system in a process plant. Very often they are neglected or missed, even by senior piping designers. Installing vents and drains after pipe has been installed usually result in additional costs which can be very high in the case of alloy piping.
Piping system for process piping is prefabricated in the a sections called pipe spools. The figure below is snapshot taken from one of my drawings, shows typical piping spool.
In this blog I will briefly present bypass valve. Although this topic is more on process side, piping designer should be familiar with it.
In the mining industry, we frequently have tanks that holds slurry or other type of liquid. These tanks are usually design as atmospheric as per API 610.