The edge of one of the pieces is given a concave treatment and the other is left square. The amount of separation, if any, is given on the weld symbol. It indicates the desired type of weld. If the penetration of the weld is to be greater than the depth of the groove, the depth of the effective throat is given in parentheses after the depth of the V. Boiler Efficiency and Steam Quality: The arrow-side and other-side designations indicate which piece contains the hole s.
A Full Penetration Weld Symbol Does not list a dimension
Welding Consideration for Pressure Relief Valves. Suggested Maintenance Log Program. The amount of separation, if any, is given on the weld symbol. The "groove" is created by either a tight fit or a slight separation of the edges.
There are five basic types of welded joints. Each type of weld has its own basic symbol, which is typically placed near the center of the reference line and above or below it, depending on which side of the joint it's on. The certification process requires the welder to create the weld on a sample using the materials, procedure, and position that will be used for making the final connection. GM Speaker John Rimmasch.
The horizontal line--called the reference line--is the anchor to which all the other welding symbols are tied. Best regards - Al. The other side of the joint is known even more prosaically as the other side, and its weld is made according to the instructions given above the reference line. Again because no depth of penetration is called out, it is assumed that it is for full penetration. By Date The height of the reinforcement, if critical, is indicated to the left of the melt-thru symbol, which is placed across the reference line from the basic weld symbol.