APORIS - 11
Valves sizes DN > 600 should be installed in horizontal position because:
- The weight of the disc and shafts is borne by the two bearings,
- the pivot bearing is relieved,
- it is a guarantee of long valve life, especially in the case of fluids containing solids, where sold particles tend to accumulate
on the bottom of the pipe ( during the closing, the reduction in cross-section causes a local increase in velocity which
results in a "sweeping" or "cleaning" of the liner).
Note: please ask your nearest KSB Sales Office for special design in case of mandatory installation of a valve > 600mm in
vertical position.
6.4 Recommendation for installation
Before assembling
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Verify that pipeline flanges are free from metallic chips and weld splatter
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Verify that pipeline flanges are located on the same centerline, in parallel and that flange holes are aligned. Verify
the distance between flanges.
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Verify that nothing hinders the complete moving of the disc during opening or closing
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Protect the valve against any dirty or debris caused by the construction works
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Verify that there are not damages caused by the piping cleaning/washing process.
Never suspend the valve by its disc or handle or actuator.
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Verify that all seals and gasket are cleaned and without any damage
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Verify that there are not external forces transmitted to valve body
During assembling
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Use appropriate lifting devices checking the load capacity and dimensions
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Use hexagon bolts and nuts with washers from flange to flange suitable for the operating and environment
conditions applying the tightening torque according to the standards of reference ( i.e. EN 1591)
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Fasten the bolts evenly crosswise
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Do not over-tighten the bolts of the flanges to avoid cracks
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Avoid any damage to the liners or gaskets
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Any paint repair must follow the paint Data Sheet
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Do not pull the pipeline towards the valve or vice-versa
6.5 Actuated valves
Electrical cables may only be connected by qualified personnel.
The applicable electrical regulations (e.g. IEC and national standards), also for equipment in hazardous locations,
must be observed. All electrical equipment such as actuator, switchboard, magnetic valve drive, limit switch etc.
must be installed in flood proof dry locations. Voltage and frequency must match the valves stated on the identity
plate.
