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Thermowell Baffles

Jacketed with PTFE

PTFE Jacketed Thermowell-baffles for inserting thermocouples below the liquid level of corrosion mixtures are designed to withstand immersion in all acids, except hydrofluoric, at temperatures to 350°F. Their corrosion resistance and strength are also designed to provide long-life and maintenance-free operation of both thermowells and vessels. They are constructed of a PTFE jacketed steel pipe with a special tantalum bulb swaged on the bottom end. Heat conductivity of 0.130 cal./cm2/°C/sec. is provided through the tantalum bulb which combines good chemical resistance with high thermal conductivity.

Convert To Metric Units
Dimensional Data, inches
Part # Size
(in.)
Flange Size Gasket Seal Dia. A Nominal O.D.* Max. Recommended Unsupported Length** (ft.)
R19282A-08-L 1/2 1 1 7/8 11/16 1 3
R19282A-16-L 1 1 1/2 2 3/4 13/16 1 15/32 4
R19282A-24-L 1 1/2 2 3 1/2 7/8 2 1/16 5
R19282A-32-L 2 3 4 3/8 1 1/16 2 9/16 6
Notes: Maximum Length = 10ft.
*Thermowells have oversize O.D. which will not fit directly into standard size vessel nozzles. By selecting a smaller size pipe and a R60692 Special Reducing Flange, the correct fit can be achieved.
**Recommended maximum length for mild agitation is shown as a general guide for liquids having about the same density and viscosity as water. For longer lengths or more severe operating loads (density, viscosity and velocity of fluid at the pipe), a larger size or internal bracing should be employed. Exceeding the maximum recommended service temperature and/or pressure or maximum recommended unsupported length can result in premature failure and possible personnel and equipment hazard.


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