SS vavle in CS piping
SS vavle in CS piping
(OP)
I'm not familiar with corrosion engineering, and I can't remember the rules along using SS in CS piping, and vise versa. I beleive the general rule of thumb is that you want to have more CS than SS, correct?
I am installing a valve in CS piping, but I can only procure a SS body valve. Would it be ok to use this or will I see potential corrosion? Do the connecting nuts/studs have to meet a certain requirement? The fluid will be crude at about 70C.
I am installing a valve in CS piping, but I can only procure a SS body valve. Would it be ok to use this or will I see potential corrosion? Do the connecting nuts/studs have to meet a certain requirement? The fluid will be crude at about 70C.





RE: SS vavle in CS piping
On some of the system we use SS bolts and nuts, not because of having to, but due to the area. Outside the battery limits of each building (5) we use CS studs and nuts.
RE: SS vavle in CS piping
Any corrosion would probably happen close to the interface, which is why coating a few inches of the cathode side (where possible) is so effective.
"You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein
RE: SS vavle in CS piping
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: SS vavle in CS piping
RE: SS vavle in CS piping
RE: SS vavle in CS piping
-external surface in contact with atmosphere
-internal surface in contact with fluid (crude)
SS is a general classification and depensing on fluid composition, operating temeperature and external exposure (marine, rural..) you need to select the correct type of SS.
Vic
Corrosion Control