Nedap SmartFlow / Installation manual
Version 01.001 / 2021 / EN
26
Dairy Farming
Figure4:Vacuum line for cleaning the SmartFlow milk meters
1. SmartFlow milk meter 3. Central cleaning valve
2. Central vacuum line for cleaning
Central vacuum line for cleaning
The central vacuum line for cleaning is a vacuum line to which all SmartFlow valve modules (see Components
(page 7)) are connected. Vacuum is applied to change the position of the SmartFlow cleaning valve from the
miking position to the cleaning position. When the vacuum is released the valve returns to the milking position.
The central vacuum line for cleaning is not delivered by Nedap, but must meet the following requirements:
1. Air pressure hose (PE): 8, 10 or 12 mm (0.3, 0.4 or 0.5 in.) diameter.
2. Maximum length: 100 m (328 ft).
3. The cleaning vacuum must be as high or higher than the vacuum in the milking installation with a maximum
of 55 kPa.
Central cleaning valve
The central valve in the vacuum line for cleaning operates the cleaning cyclus of all SmartFlow milk meters
connected to the vacuum line:
1. The central cleaning valve must allow vacuum in the central vacuum line during cleaning.
2. The central cleaning valve must never allow vacuum in the central vacuum line during milking. This prevents
the SmartFlow to measure the milk yield.
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