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Dorr EcoBell2 SL EC - Recirculation for 1 K Paints; Color Tube

Dorr EcoBell2 SL EC
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Operating Manual
© Dürr Systems AG
EcoBell2 SL EC
- Rotating Atomizer with External Charging
Operating principle
Document No.: MRA00001EN
Version:: 07 As of:: 01/2020
37 / 156
4.4.3.3 Recirculation for 1K paints
The recirculation valve controls the quick filling and purging of the
paint supply. The paint tube is bled via this valve during filling. During
rinsing the unused material and the rinsing agent is expelled through
the return.
Fig. 11: Concept image: Recirculation
F Paint Supply (Color)
RF Recirculation
STL-HN Control air for the main needle
STL-RF Control air for the recirculation
Pos: 27 /INP/ Bell2/04_03_0 4 Farbroh r @ 39\mod_14 0852585143 2_20.docx @ 493833 @ 3 @ 1
4.4.4 Color tube
The color tube connects the valve block and the bell disk.
The color tube is sealed with the valve block. The color tube has two
canals for:
- Supply of paint
- Supply of thinner.
The paint nozzle is attached at the end of the color tube. Through the
hole in its center, the paint flows into the bell disk.
Through the other opening, thinner for the quick rinsing flows into the
bell disk. The opening for the thinner is smaller than the opening for
the paint.
Pos: 28 /INP/ Bell2/04_03_0 5 Zerstäube rgehäuse_ AA @ 39\mod_ 1408526049 705_20.docx @ 493856 @ 3 45 @ 1

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