Reference Manual
00809-0100-4002, Rev BB
November 2012
5-7
Rosemount 1199
FILL FLUID
SPECIFICATIONS –
NEOBEE M-20
Neobee M-20 Description
Neobee M-20 is the most commonly used fill fluid for sanitary applications
because of its low viscosity and thermal stability. It is a polyol diester of short
chain naturally derived fatty acids (coconut oils). Neobee is approved under
21CFR 172.856 as a direct food additive and under 21CFR 174.5 as an
indirect food additive. It is soluble in alcohol containing up to 20% water, has a
smooth non-oily feel and unusually low viscosity, similar to Silicone 200.
Neobee properties make it a good all purpose fill fluid. On colder applications
the response time should be evaluated due to increased viscosity. Neobee
M-5 is also available as an ‘M’ number. It offers lower vapor pressure and
improved thermal stability. However, viscosity more than doubles compared to
M-20.
Temperature Limits
At Atm Pressure
-15 to 225 °C (5 to 437 °F)
Viscosity at 25 °C (77 °F)
9.8 cs
Specific Gravity @ 25 °C (77 °F)
0.94
Coefficient of Thermal Expansion
0.001008 cc/cc/C (0.00056 cc/cc/F)
Chemical Composition
Derived from coconut oil and propylene glycol:
Dicaprylate/Dicaprate
CAS Number
68583-51-7
Содержание 1199
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