Installation
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EN-US · 30.30.01.01963 · 00 · 05/19
8.3.1 Connecting the Compressed Air and Vacuum
Description of the pneumatic connection
1
2
1
Compressed air connector (marking 1)
2
Vacuum connection (marking 2)
The threaded or push-in compressed air connector is marked with the number 1 on the ejector.
4
Connect compressed air hose. For threaded connectors, the maximum tightening torque is 1 Nm.
The threaded or push-in vacuum connector is marked with the number 2 on the ejector.
4
Connect the vacuum hose. For threaded connectors, the maximum tightening torque is 1 Nm.
8.3.2 Instructions for the Pneumatic Connection
To ensure problem-free operation and a long service life of the ejector, only use adequately maintained
compressed air and consider the following requirements:
•
Use air or neutral gas in accordance with EN 983, filtered to 5 μm, unoiled.
•
Dirt particles or foreign bodies in the ejector connections, hoses or pipelines can lead to partial or
complete ejector malfunction.
1. Shorten the hoses and pipelines as much as possible.
2. Keep hose lines free of bends and crimps.
3. Use only pipes or hoses with the recommended inner diameter to connect the ejector:
Use hoses with sufficient internal diameter...
Internal Ø
for nozzle
size 0.3 /
0.5 / and 0.7
mm
Internal Ø
for nozzle
size 1 mm
on the compressed air side to ensure that the ejector achieves its per-
formance data.
4 mm
6 mm
on the vacuum side to avoid high flow resistance.
If the internal diameter is too small, the flow resistance and the evacua-
tion times increase and the blow off times are extended.
4 mm
6 mm
Internal diameters are based on a maximum hose length of 2 m.
