KROHNE OPTIMASS 7000 EN - Manual (Page 22)

3
INSTALLATION
22
OPTIMASS 7000
www.krohne.com 04/2013 - 4001016302 - MA OPTIMASS 7000 R02 en
3.4.7 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.
3.4.8 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".
1 Install the meter at an angle to allow self-draining.
2 DO NOT install the meter horizontally.
MA_OPTIMASS_7000_en_042513_4001016302_R02.book Page 22 Tuesday, July 2, 2013 5:23 PM