We have some 316 check valves in DBNPA service that are getting eaten up. I don't know concentration. All I know is that it is running at ambient at a pressure of 100 psi. The customer is a chemical treating company. Here is a short snippet on DBNPA. Any thoughts would be much appreciated...
I need some help. My company manufactures LNG fuel dispensers. The service is fairly severe as temperature fluctuates between ambient and -220°F. Think car pulls up, activates system, system goes cryo, car pulls away, system slowly returns to ambient. We have swing checks in the return line...