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Product Groups
Spring Loaded Industrial Thermocouples with Protection Head
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
NB-TBSL Series
  • Non-sealed Design For Use With Thermowells
  • Made with Special Limits of Error Thermocouple Material
  • Approx. 1/2" of Travel Length
  • 1/2" NPT Mounting Threads Standard
  • Spring Loaded Provides Tip Contact For Faster Response When Used with Thermowells
  • Grounded, Ungrounded, and Exposed Thermocouple Junctions Standard
  • Pressure Inside Head Equals Pressure Around Probe
 Manuals (contact with email : [email protected])


These spring loaded probe assemblies offer a choice of two styles of protection heads to meet environmental and size requirements. The probes can move up to 1/2 " in the direction of the head's axis. The thermocouples are available in J, K, T or E calibrations, with either 304SS or Inconel® sheathing (high temperature Super trodeksCLAD®XL or 321SS provided on request).
Standard lengths are 12" including 1/2" for the pipe thread in the relaxed state. Other probe lengths are available. Both the thread on the spring loaded probe and the extension wire opening are 1/2" NPT. The NB2 head includes a compression fitting nut and rubber ferrule for 1/8" to 1/4" O.D. wires or tubing.

The moving internal terminal block with attached probe is standard on all models. Consult the Custom Engineering Dept. for price and delivery on a wide variety of non-metallic and other specialized heads.

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