Thank you everyone. Exemption taken and completed the welding (just a single pass closure of the lap joint). It went fine; only a small repair on the exterior side paint repair (still minor).
Thanks again for your response. My issue is the same; In accordance to the code and per my understanding, welding on to the tested tank is a violation because it is allowing only insulation cleats/pins..etc. only as per 7.2.1.12.
My purpose of welding is to seal the gap of the interior side of...
Hello Mike, thank you so much for your response.
Yes the roof is self supporting type. The roof joints are already welded from outer side (External platform, structural are erected. Hydro test completed but only for the shell).
As you see from the typical lap joint of the roof of the attached...
Continued from thread404-448069...
I am working on a project which consists of fixed cone roof newly built API 650 tanks, passed the hydro test requires some welding to be performed.
In the current condition, As per Fig.5.3a roof-plate joint, lap joints of roof are externally fillet welded...
Stephen thanks for your quick response.
Let me write more specifically:
Tank configuration is 8m dia X 14m height with 3nos longitudinal lap joints on the roof (Please see the snap attached). Service is waste water storage.
Please see the wording of API-650, It states "After completion of...
Hi Friends,
Iam working on a project which consists of fixed cone roof newly built API 650 tanks, passed the hydro test requires some welding to be performed.
In the current condition, As per Fig.5.3a (roof-plate joint), lap joints of roof are externally fillet welded. Our design considered...
