Any news for SW update?
In China is there one technician to complete the modifications on the P&ID and on the same time install the new SW.
But this new SW even is better that previous one, there are the POV 152 that is the one connected to High storage always open also when the compressor is off.
Chinese and also my self think is not OK at list for safety, because only the NRV (POV152 always open) never let the gas go back to compressor cylinder, then if any leakage of the NRV the problem is on the compressor bearing of connecting rod.
Here is used NRV MHA, in Wayne was used Cozzani, and I’m not sure that this NRV are for HP because the storage H the pressure can be 250 Bar.
In your compressor the SW are the same means the POV152 remain open when compressor stop?