I believe my question may not have be clearly defined. The issue is I have do butt weld in small bore piping which is of alloy material. As per code pre heating is required before welding. Inorder to fit up I have to tack weld the joint. As per code, pre heating is required before welding. Hence...
As per B31.3, I understand all P11 materials has to be pre heated. So our client has asked to pre heat even for fit up also. Now the issue I am facing is regarding the small bore. I dont understand how I could preheat to 150 C and do fit up as it will be too hot to handle the fitting being small...
During inspection of weldolet, mismatch between the weldolet and run pipe hole ID was observed. The run pipe hole ID was smaller than the weldolet. Hence flush grinding was advised. But now QC has rejected the weld, stating flush grind is not allowed as per code. The piping code is B31.3 ...
during the inspection of weldolet, it was found there a mismatch in the inside id. The run pipe hole was smaller than the weldolet ID. Hence it was advised to flush grind to match the id. However now the QC has rejected the weld stating that flush grinding is not allowed as per code. The piping...
