Pump material selection
Pump material selection
(OP)
Hi all. We have a flare knock-out drum centrifugal pump in an arrangement of 1+1, and hydrocarbon with 80000ppm h2s and 150000ppm chloride. Our design temperature is -100c . What class do you suggest?
Thanks
Thanks





RE: Pump material selection
Is design temp minus 100C? What is max design temp, what is operatiing temp? This seems very low for a flare KO drum. Is there any water? what is the fluid? Is there any oxygen in the water or liquid? Super duplex is my answer without knowing the answers to the questions above
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Pump material selection
Thanks from your concern. Our design temperature are 100 & minus 100 and operating temp is about 60. This very low temperature is caused by deperessurizing of flare. This 1+1 pump is hired to discharge water content of hydrocarbon to closed drain system. We dont have oxygen in our gas composition. But h2s and wet chloride as mentioned above.
RE: Pump material selection
I would buy a 316ss pump and have the internals coated with Tantalene.
Short of that I might consider a stainless pump with an internal coating, maybe something from Belzona.
Regards
StoneCold
RE: Pump material selection
http://www.tantaline.com/Pumps-93.aspx
What sort of life expectancy is required for this application?
RE: Pump material selection
25 years
RE: Pump material selection
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Pump material selection
RE: Pump material selection
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Pump material selection