2 installing valves with butt weld ends, 0 putting the valve into operation, 2 installing valves with butt weld ends -8 – ARI Armaturen CHECKO-D PN40 EN User Manual
Page 8: 0 putting the valve into operation -8
Page 2-8
Rev. 0040106000 1613
Operating and installation instructions
CHECKO
®
-V PN6-160
/ CHECKO
®
-D PN40
5.2 Installing valves with butt weld ends
Please note that only qualified persons using appropriate equipment and working in
accordance with technical rules are allowed to install fittings by welding.
The responsibility for this lies with the system owner.
Refer to the data sheet for information about the shape of the butt weld ends.
The valves must be welded in closed position.
6.0 Putting the valve into operation
ATTENTION !
- Before putting the valve into operation, check material, pressure, temperature
and direction of flow.
- Regional safety instructions must be adhered to.
- Residues in piping and valves (dirt, weld beads, etc.) inevitably lead to leakage.
- Touching the valve when it is operating at high (> 50°C) or low (< 0°C) media
temperatures can cause injury.
Affix warning notice or protective insulation as appropriate!
Before putting a new plant into operation or restarting a plant after repairs or
modification, always make sure that:
- All works has been completed!
- The valve is in the correct position for its function.
- Safety devices have been attached.