Questions and answers on process units in conventional natural gas pipeline design
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The pressure regulating box in the building already has a filter, so is it still necessary to install another filter after the pressure regulating box and before the Roots meter? What are the requirements regarding gas quality between the instrument and the pressure regulator? In other words, is the precision required for filtration the same?
It’s best to add one; firstly, to further improve the filtering precision, and secondly, to prevent tempering