Dear All!
Because of low condensing pressure in ammonia plant in winter time (it is difficult to do hot gas defrosting) I need condensing pressure regulator ICS + CVP and ICS + CVPP (HP) on discharge pipe.
But I have thermosyphon oil cooling with pilot receiver connected with high pressure receiver and condenser by equalizer line. And it is impossible to use check valve on drain line to high pressure receiver (it needs dP to open). What I have to do? Please help.