Can weld nozze at knucle radius of dish vessel as per ASME sec8?

Yes, welds at the knuckle radius of a dish vessel are permissible according to ASME Section VIII, provided they meet the specified requirements for design, fabrication, and inspection. The design must account for the stresses in that area, and appropriate welding techniques should be employed to ensure joint integrity. Compliance with the relevant codes and standards, including any necessary post-weld heat treatment, is also essential. Always refer to the latest version of ASME codes for specific guidelines and requirements.