T5 Flare Gas Transducer Installation Guide 11
Chapter 1. Installing Pipe Nozzles
1.2.4 Installing the First Nozzle (cont.)
6. Tack weld the nozzle to the pipe at four diametrically opposed points, each tack being approximately
0.2 in. (5 mm) in length. Allow the weld to cool for 30 seconds between tacks.
7. Complete the root pass and subsequent filler passes as required.
8. Allow the weld to cool, and then remove the nut, washer, jig and threaded rod.
1.2.5 Installing the Second Welding Boss
1. Bolt the jig to one end of the alignment plate using four bolts.
2. Screw the threaded rod into the second boss. Then, insert the bolt/boss assembly into the jig key cut grooves and
secure it with a washer and nut on top.
WARNING! Only qualified personnel should weld bosses and nozzles, using a suitable ASME IX
qualified welding procedure. All applicable safety codes should be observed.
Jig
Alignment Plate
Side View
Threaded Rod
Welding Boss
Side View
Washer and Nut
to Secure
Side View
Threaded Rod
Welding Boss
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