INSTALLATION 3
23
OPTIMASS 7000
www.krohne.com10/2015 - 4001016303 - MA OPTIMASS 7000 R03 en
Factory fitted heating jacket
Factory fitted heating jacketFactory fitted heating jacket
Factory fitted heating jacket
If the meter has been ordered with a heating jacket, it will be supplied with NPT, Ermeto or
flange connections.
Connecting / using the heating jacket
• Use reinforced flexible hoses to connect the heating jacket to the heat source.
• The heating jacket material is 316L but the heating medium is also in contact with the outer
cylinder, which might be a lower grade Stainless Steel.
• Suitable heating mediums are steam or hot oil. Avoid the use of heating mediums that can
cause crevice corrosion in Stainless Steel.
• Where liquid is being used, set up the pipe configuration so that air can be vented from the
system.
• Where steam is being used, set up the pipe configuration so that condensation can be drained
off.
• Heat the jacket to working temperature before flowing the process fluid through the meter.
Heating times
CAUTION!
The maximum heating jacket pressure and temperature is 10 barg at 150
°
C / 145 psig at 302
°
F
for Titanium measuring tubes and 10 barg at 100
°
C / 145 psig at 212
°
C for Stainless Steel,
Hasteloy and Tantalum measuring tubes.
Temperature [°C / °F] 1 Time [minutes] for Titanium measuring tube
10 15 25 40 50 80
40 / 104 30 90
60 / 140 80 160
80 / 176 120 330
100 / 212 190 495
120 / 248 270 735
140 / 284 480 1320
1 Measured at the centre of the measuring tube.
MA_OPTIMASS_7000_en_151026_4001016303_R03.book Page 23 Monday, October 26, 2015 4:44 PM
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