Recent content by Salghetet

what about coating, do not you think can work to protect external surface of pump

in piping class service killed C-Stl is out side the pit LIQUID SULFUR (STEAM FULL JACKETED/OUTER PIPING)

tube size is one inch and failuer is in tube and also in body but not all body and tube, i think it is in area where exposure more to vapor

It is valuable information gents, I preciate However, There are more than one pump with the same spec but only this pump which failed, the failure not repeated in other pumps I do not have much information about operation history, so I am looking for the parameters have contributed in failure...

316 SS Tube is in serveice for around two years and expected to be in service for long time as it is in LNG company

Ladies and Gentlmen submersed pump for pumping liquid sulfur was failed due to corrosion, failure was in steam jacketing tube which designed to heat sulfur inside the pump, corrosion is external, material of tube is 316SS, temperature between 130 and 150C liquid sulfur pit is air vetilated, and...

water is oily treated water from effluent area of LNg plant

water is oily treated water from effluent area of LNG Plant and it is not waste water

it may be due to mechanical damage during shipping

400 series or 17-4 PH stainless steels are good for high temperature above 200C but in our case temperature is normal will not exceed 80C

SS316 is good but we can not make usre that chloride content will not exceed 1000, for handling water I think non metallic material or lining metalic are the best regardless the price what about low alloy steel

Chloride is 620mg/L it may cause SCC beside crevice however in other area cast iron and steel (pump material impeller and casing) is used and no significant issues but it is horizental not vertical and different manufacture company

Thanks bimr water analysis show that pH is 8.8 and chloride, ca, Mg and Na are high, it is corrosive and hard water, stainless steel and chloride pitting corrosion but i think pitting will not be significant problem as the scaling problem regarding the expected service life, it is LNG company so...

fluid temperature is imbient and regarding soilds I am not sure but it is oily water from natural gas industrial at the effluent treatment stage before diposal, i think no much soilds.

what about temperature damage and mechanical damage of impellar and shaft due to rotating if material is plastic