Trim 12 for steam service

[MechCC]

Hi,

Does anybody know if Trim 12 can be used for steam service?

Thanks,

 

[hsbcn]

API 600 Trim Chart (

http://alloy-valves.com/Alloy-Valves-Product-Range/API-600-trim-chart.php)

says that Trim 12 is fully 316 + HF on seat. It doesn't say anything about service conditions, so you'll have to advise pressure/temperature conditions in order to get a reliable answer.

Oxidation-proof valves for offshore environments.

 

[MechCC]

The pressure/temperature is 7826kPag at 296degreeC.

Thanks.

 

[steamdog]

For steam application we always use trim 8, the 410 stainless is a bit harder than the 316 so you get less erosion.

 

[gerhardl]

Steam is not always as clean and dry as presumed. Cost saved on quality, both on materials and tyoe/brand and valve geometrical form can easily give a very much higher lifetime cost with shorter standtime, repairs, downtime and replacements.

For your temperature and pressure I would rather go up in quality, refer steamdog's posting.