desalter fresh water mixing valve

[edaughters]

Could someone with experience in crude desalting tell me what you use to mix the fresh water with the crude upstream of the desalter vessel? I am told that Fisher double ported A body valves were used in the past, but since Fisher stopped making that body style years ago, I would like to know what is currently being used.

Also, any tips on how to position this valve (pressure drop, etc.) would be appreciated.

Thanks.

 

[yevzil]

We have two stage crude desalting unit, each stage using mixing valve upstream the vessels to mix fresh water and crude.