API trim 5 for steam service in API 600 gate valves
API trim 5 for steam service in API 600 gate valves
(OP)
I would like to hear any suggestions regarding use of trim 5 on gate vales in steam service. Is there a temperature you would recommend moving from other trims to trim 5. Is there a better trim than trim 5? When would galling be an issue, if at all? Does "clean" or "dirty" service affect the trim decision?





RE: API trim 5 for steam service in API 600 gate valves
In terms of valve wear reduction there isn't a much better material than stellite 6.
RE: API trim 5 for steam service in API 600 gate valves
By the way, the recommendation is not to use stellite for boiler feedwater containing Amines because they will leach the cobolt from the stellite and it comes apart.
Joe Lambert
http://www.control-associates.com/