Dear Ajit,
I am from line pipe manufacturing organization (pipe mill as per API 5L).We have included design and development in our scope.
we manufacture a range of pipe diameters and these sizes are repeated time to time.does it need to repeat design validation every time or limited to once for any pipe size.
our manufacturing processes are well defined and all process inputs (machine,manpower,parameter range) is same under same product standard (API 5L).
We manufacture pipes under same product specification or even for same client.All the process (NDT,WELDING,HYDROTEST,BEVELING) are qualified and tested for all pipe sizes many times.
do we also need to repeat validation each time.
based on our previously qualified designs,can we continue our regular production after one or two initial pipes are manufactured and tested satisfactorily & we maintain and adjust all parameters for ongoing production.