WEKA_IOM_C-0068_TgxV_DN250_PN6_EN / 17.04.2020
15 / 38
Additional tips for reducing welding heat:
For welding procedure 141, TIG welding:
•
Ensure low heat input
•
For sockets with 2 mm wall thickness, use approx. 48-52 amps.
•
The diameter of the filler wire should be 1-2 mm
These values are only intended as guidelines. Depending on the welder and the welding process, the values
need to / may be adjusted.
Shielding gas:
The flow direction of the shielding gas should always be from the valve into the pipe.
•
Welding at the seat socket: The shielding gas input must be from the output socket
•
Welding at the output socket: The shielding gas input must be from the seat socket
Welding sequence:
First, weld 2 quarters of the circumference on opposite sides. Leave to cool. Then, weld the rest.
