Design and function
TIG welding
099-002060-EW501
19.10.2015
37
5.8.2
Connecting a TIG welding torch with rotating gas valve
Prepare welding torch according to the welding task in hand (see operating instructions for the
torch).
Figure 5-15
Item Symbol
Description
0
1
Workpiece
2
Connection socket for "+" welding current
Workpiece lead connection
3
Output side of the pressure regulator
4
Welding torch
5
Connection socket, "-" welding current
Welding current lead connection for TIG welding torch
• Insert the welding current plug on the welding torch into the welding current connection socket and
lock by turning to the right.
• Insert the cable plug on the work piece lead into the "+" welding current connection socket and lock by
turning to the right.
• Screw the shielding gas connection of the welding torch to the pressure reducer on the shielding gas
cylinder.
• Slowly open the gas cylinder valve.
Prior to every welding task the rotary valve has to be opened and, after welding, be closed again.
• Open the welding torch rotary valve.
• Set the required shielding gas quantity at the pressure regulator.
Rule of thumb for the gas flow rate:
Diameter of gas nozzle in mm corresponds to gas flow in l/min.
Example: 7mm gas nozzle corresponds to 7l/min gas flow.
