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BTB - Boiler Tube Block
Brand: Aircom Instrumentation LtdOverview: The Boiler Tube Block (BTB) is a specifically designed and patented temperature sensor for measuring tube metal temperature inside boilers, furnaces and industrial process equipment.
Features: Robust design that is very simple to install, Unmatched reliability, Third party proven - the most accurate tube metal temperature sensor when compared to traditional surface mount sensors
Application: BTB’s are commonly used inside OSTG’s, HRSG’s, Coker Furnaces, Industrial boilers and furnaces.
BTB Block is where the thermocouple junction is welded to the boiler tube metal surface.
The block is attached with three simple fillet welds. Mineral Insulated (MI) cable extends form the BTB block to the outside of the boiler where it will transition to soft lead wires for termination into the electrical control equipment. Shroud or heat shield will isolate and insulate for accurate tube metal inner wall temperature.
The shroud is insulated with a high temperature fibrous material. It can be attached to the boiler tube with 4 fillet welds or 1 continuous fillet weld depending on end user preference.
For more information please see the catalog page in the document section.
Specifications
Connection Head
- 2AL - Aluminum, 3/4” Conduit, Bakelite Terminal Block
- 2ALT - Aluminum Epoxy, 3/4” Conduit, Bakelite Terminal Block
- 2SS - Stainless Steel, 3/4” Conduit, Bakelite Terminal Block
- Other - Refer to Catalog Page E-5 for Details, Styles & Options
- X - Not Required
Process Fitting
- 10 - 1” NPT
- 12 - 1/2” NPT
- 34 - 3/4” NPT
- Other - Consult Factory
- X - Not Applicable
Sensor "A" Length (Inches)
- Determined by Customer
Sensor "L" Length (Inches)
- Determined by Customer
Sensor Extension Style
- AF - Flex Armor over Fiberglass (482° C)
- AT - Flex Armour over Teflon (260° C)
- CF - Compression Fitting
- GS - Gas Seal Union
- SP - Special (Specify)
- ST - Teflon with Stainless Steel Overbraid (260° C)
- TE - Teflon (260° C)
Sensor Sheath, BTB Block Material, & MI Cable Clamp
- 310 - 310 Stainless Steel
- 316 & 316L Stainless Steel
- 600 - Inconel 600
- Other - Consult Factory
Sensor Type
- K - Typical K Thermocouple
- Other - Consult Factory
Sensor, Probe Diameter
- 14 - 1/4”
- 38 - 3/8”