11
Installation
continued
Butt-weld version
1. Ensure the correct installation position.
2. Ensure the correct direction of flow. The direction of flow arrow is on the trap body.
3. Leave sufficient space for servicing. When the trap is installed, a minimum space of
90 mm
is required for opening cover
D
.
4. Remove the plastic plugs. They are used
only
as transit protection.
5. Clean the butt weld ends
6. Install using arc welding (welding process 111 and 141 to DIN EN 24063) or gas
welding (welding process 3 to DIN EN 24063), or equivalent standard.
Attention
Steam traps may only be welded in pipes by welders with test certification to
DIN EN 287 or equivalent qualifications.
Heat treatment of welds
Subsequent heat treatment of welds is not necessary provided the pipe is made from
similar material to the trap body.
If pipes are of a material that render heat treatment necessary, this must be restricted to
the immediate vicinity of the weld. If this is not possible, remove the Thermovit regulator
before heat treatment.
