Flowserve AK 45 - Manual (Page 11)


Installation
– continued –
Steam trap with socket-weld ends
. Observe position of installation.
. Observe flow direction. The flow direction arrow is located on the valve body.
. Leave at least
40 mm free space around the equipment for subsequent disassembly of the
cover E.
4. Remove plastic plugs. They are only used for transit protection.
5. Remove regulator as described in section Maintenance.
6. Clean socket-weld ends.
7. Apply
only electric arc welding process (welding process  and 4 in accordance with
ISO 406).
Steam trap with butt-weld ends
. Observe position of installation.
. Observe flow direction. The flow direction arrow is located on the valve body.
. Leave at least
40 mm free space around the equipment for subsequent disassembly of the
cover E.
4. Remove plastic plugs. They are only used for transit protection.
5. Remove regulator as described in section Maintenance.
6. Clean butt-weld ends.
7. Apply electric arc welding process (welding process  and 4 in accordance with
ISO 406) or gas welding (welding process  in accordance to ISO 406).
Attention
■
Only qualified welders certified e. g. according to EN 87- may weld the valve into
pressurized lines.
■
The valve must not be insulated.
Heat treatment of welds
A subsequent heat treatment of the welds is not required.