KROHNE OPTIMASS 8000K EN - Manual (Page 20)

3
INSTALLATION
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OPTIMASS 8000K
www.krohne.com 08/2010 - 4000921002 - MA OPTIMASS 8000k R02 en
3.4.9 Flexible connections
Flexible connections can be used but because of the high flow rates associated with large
diameter meters, it is recommended that flexible connections are not used on meters larger
than size 80.
3.4.10 Hygienic installations
Where the meter has been approved by the sanitary requirements of the European Hygienic
Engineering and Design Group, you MUST give consideration to:
• Installation - install the meter at an angle to allow self-draining (see illustration).
• Cleaning fluids - cleaning fluids should flow uphill with a velocity rate greater than
1.5 m/s / 5ft/s. If the process flow is downhill, install a flow restrictor downstream of the
meter. This will make sure that the meter is completely filled with the cleaning fluid.
• Process connections and seals MUST be in accordance with EHEDG documentation.
The manufacturer also recommends that you refer to EHEDG (www.ehedg.org) document
number 8 "HYGIENIC EQUIPMENT DESIGN CRITERIA".
Mounting the meter for hygienic applications
1 Install the meter vertically to allow self draining.
2 DO NOT install the meter horizontally.
MA_OPTIMASS_8000k_en_100817_4000921002_R02.book Page 20 Tuesday, August 17, 2010 2:08 PM