Dear e43u8
Indeed thankful for your reply, as you rightly pointed out that small diameter piping normally installed upstream to flush the line and PSV. However, I think the jet of nozzle normally installed in downward direction not directing hitting the PSV bottom.
Above configuration is...
Dear ALL
We have a tank with VCM service, there are VCM vapors having PVC powder at the top of the tanks. PSV installed at one of the outlet line of the tank having set pressure of 16 kg/cm2. Operating pressure of the tank is 10 kg/cm2.
PVC powder in the VCM vapors got deposits in the pipe...