TRANSPORT, INSTALLATION AND START OF OPERATIONS
22 | EN
4.3 Pneumatic connection
CAUTION
Noise pollution due to incorrect installation of the pressure and vacuum
connections
Hearing impairments may occur in the long term
►
►
Correct installation
Wear ear protectors
CAUTION
Connected devices may explode due to pressure
Connected devices may implode due to vacuum power
Damage from flying or aspirated parts
►
►
Wear eye protection
Wear ear protectors
Use only well-maintained compressed air (air or neutral gas, filtered 5 µm, oiled or unoiled).
High quality compressed air is important for the prolonged service life of the ejector.
Dirt particles or foreign bodies in the ejector connections, hoses or pipelines can lead to partial
or complete ejector malfunction.
Hoses and pipelines should be laid as short as possible.
Insufficient compressed air is supplied if the internal diameter on the compressed air side is
too small. This prevents the ejector from performing as specified in its defined performance
data.
Excessive flow resistance occurs if the internal diameter on the vacuum side is too small. This
leads to both a reduction in suction capacity and increased evacuation times. Blow-off times
are also lengthened.
Hose lines must be laid without bends or crimps.
Only use the hose or pipe internal diameters recommended for the ejector. If this is not
possible, use the next largest diameter.
Plug any unneeded vacuum connections to reduce noise and prevent foreign objects from
being sucked up.
4.3.1 Recommended line cross sections (internal diameters)
SCPS
performance
class
Cross section, compressed air-side
Cross section, vacuum-side
2 to 8 ejectors
9 to 16 ejectors
07
7
9
4
10
7
9
4
15
7
9
6
2-07
7
9
4
2-09
7
9
4
2-14
7
9
6
1
)
based on a maximum hose length of 2 m. For larger hose lengths, larger cross sections are to be chosen accordingly!
If the recommended line cross section is too large due to the cable routing (e.g. an energy
chain or robot flange), the additional compressed air connections are available for smaller
cross sections.
