C.A. for thickness of nozzle-API 650
C.A. for thickness of nozzle-API 650
(OP)
Hi All,
In Api 650, the min. required thk. for nozzles are specified. I do not know if the corrosion allowance has been applied to the mentioned thicknesses because the specified thicknesses are high. please let me know if the C.A is specified by the purchaser it must be added to the thk. which mentioned by API.
Thanks in advance
In Api 650, the min. required thk. for nozzles are specified. I do not know if the corrosion allowance has been applied to the mentioned thicknesses because the specified thicknesses are high. please let me know if the C.A is specified by the purchaser it must be added to the thk. which mentioned by API.
Thanks in advance





RE: C.A. for thickness of nozzle-API 650
Nozzle thickness shall be the larger of the thickness inidcated on the table or the minimum calculated thickness + CA.
RE: C.A. for thickness of nozzle-API 650
For nozzle necks, any specified nozzle neck corrosion allowance shall, by agreement between the Purchaser and the
Manufacturer, be added to either the nominal neck thickness shown in Tables 5-6a and 5-6b (or Tables 5-7a and 5-7b), or to the minimum calculated thickness required for pressure head and mechanical strength. In no case shall the neck thickness provided be less than the nominal thickness shown in the table.