K
Orifice plates has two types of weep holes. first one is drain hole, second one is vent hole. we are using drain hole (weep) in gas process, because of while going the gas flow with condensate liquid , gas will go to orifice hole and condensate liquid will go to drain hole (weep). we are using vent hole (weep) in liquid process, because of while going the liquid flow with gas, liquid will go to orifice hole and qas will go to vent hole(weep).
