KROHNE OPTIMASS with MFC 300 EN - Manual (Page 47)

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7.4 Secondary Pressure Containment
The OPTIMASS 7000 meters are supplied (as standard) without certified housings that have a
typical burst pressure
>
100 barg..
Options are available with PED certified housings, with the following pressure ratings:
304 / 304L or 316 / 316L: 63 barg @20°C (580 psig @ 68°F)
316/316L: 100 barg @20°C (1450 psig @ 68°F)
If the user suspects that the primary tube has failed, the unit must be depressurised and
removed from service as soon as it is safe to do so.
Note:
In the 7000 Series there are high pressure feed through seals and ‘O’ rings that might not be
compatible with the process fluid for an extended period if a primary tube fails. Therefore it is
important to remove the meter at the earliest possible time.
It is the user’s responsibility to ensure that the materials used are compatible with this product.
Other ‘O’ ring materials are available on request.
7.5 Hygienic Applications
The OPTIMASS 7000 series is available with a variety of hygienic process connectors.
When installing / using meters with hygienic process connectors, support /clamp the meter
properly. The meters are heavy and could injure when disconnected from the adjacent pipe
work
The recommended method of installation is to mount the meter against a support/wall with the
body of the meter supported/clamped. The process pipe work can then be supported off the
meter. The meter is too heavy to be supported from the thin walled piping usually associated
with the hygienic industry For information regarding lifting the meter, please refer to section
3.4
1 2 Meter Supports
1
2
Installation lengths: please see section 6.9
Please check with KROHNE if you are unsure of the installation length. Many meters are built
to customer requirements / specifications especially where special hygienic process connec-
tors have been adapted to the meter. As these are normally non-standard, the installation
length will not be given in the technical data.
It is also recommended that the seals be replaced regularly to maintain the hygienic integrity
of the connection.