The Best Thermocouples for Industrial Applications

PTSHEAT sales engineers can design exact fit thermocouples to replace your original equipment and for new applications. We guarantee our parts! We will supply proper form, fit, function sensors every time.

Thermocouples for General Applications

Phoenix Thermal Supply stocks a wide variety of thermocouples for industrial and commercial equipment. If your application requires a type of thermocouple not readily available, PTSHEAT can provide a custom sensor to your exact specifications.

Performance Features

• Fiberglass insulated thermocouples are suitable for temperatures up to 900° F (480° C) for continuous operation.
• 32 Standard sheath lengths
• Stainless steel braid or hose protection
• J, K, T & E calibrations
• Grounded, ungrounded and exposed junctions
• Flat & drill point
• Epoxy sealed cold ends
• Adjustable depths
• Flexible extensions
• Washers, nozzles & clamp bands
• Custom diameters
• PFA coated and stainless steel sheaths
• Straight, 45° or 90° bend
• Locking bayonet caps

Mineral Insulated Thermocouples

Mineral insulated thermocouples are fast-responding, durable, and capable of handling high temperatures. A protective metal outer sheath allows the use of smaller diameter conductors, while the rock hard compacted MgO insulation enhances the sensor’s ability to read temperature by transferring heat quickly to the measuring junction.

Mineral insulated thermocouples outperform bare wire thermocouples in most applications.

Performance Features

• Easily handles temperatures up to 2200° F (1200° C)
• Meets or exceeds initial calibration tolerances per ASTM E 230
• Mineral insulation protects thermocouple from moisture and thermal shock and permits operation in high temperature, high pressure environments
• Diameters as small as 0.010 in. (0.25 mm)
• Flexibility of insulation allows thermocouple to bend without risk of cracking to meet design requirements
• Outer sheath protects wires from oxidation and hostile environments
• Wide range of sheath materials, diameters, and calibrations to meet specific requirements
• Custom options include special lead lengths, lead wires, and terminations

Industrial Thermocouples

Industrial thermocouples come in two base metal types:

• Base Metal with Bare or ceramic insulated elements
• Protection tubes

A variety of specifications for each type is available to meet your application requirements.

Performance Features

• 2300° F (1260° C) maximum temperature
• Insulated wire thermocouples are suitable for most general purpose applications
• Bare and ceramic insulated elements
  • Available in ASTM E 230 types K and J
  • Can be twisted or butt welded
  • Straight or angle types
  • 2 or 4 hole insulators
  • Single or dual element
  • Protected thermocouples
    • Complete with head, block, and protection tube
    • Several styles available

• (WE CAN CUSTOM MAKE OR SHIP ANY THERMOCOUPLE FROM STOCK)  PLEASE CHOOSE FROM SOME OF THESE POPULAR THERMOCOUPLE TYPES BELOW:

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  Fixed Depth Thermocouple Standard Specifications

  • 3/16″ diameter probe STOCK and other Diameters upon request
  • Fits standard bayonet adapters and metric sizes.
  • 2 1/2″ fixed depth STOCK or CUSTOM length as needed.
  • Grounded construction or UNgrounded upon request
  • 24 ga. fiberglass leads or Teflon leads with SS armor or Braid protection.
  • Spade lugs

  

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  Adjustable Braid Thermocouple Standard Specifications

  • 3/16″ diameter probe
  • Fits standard bayonet adapters
  • 12″ spring with bayonet cap
  • Grounded construction
  • 24 ga. fiberglass leads with stainless steel armor
  • Spade lugs

  

  Metric Sizes Also Available

  • 12 mm cap with 4.75 mm diameter probe

  

  • 14 mm cap with 8 mm diameter probe

  

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  Adjustable Armor Thermocouple Standard Specifications

  • 3/16″ diameter probe
  • Fits standard bayonet adapters
  • Grounded construction
  • 24 ga. fiberglass leads with stainless steel armor
  • Spade lugs

  

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  Standard Thermocouple Extension Specifications

  • Available with stainless steel braid
  • Available with stainless steel armor
  • 24 gage Fiberglass wire
  • Type J or Type K
  • Lead Length 48″, 72″ or 120″

  

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  Shim Style Thermocouple Standard Specifications

  • Stainless steel shim
  • 24 ga. fiberglass leads with stainless steel braid
  • Spade lugs
  • Grounded construction

  

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  Newbury Nozzle Thermocouple Standard Specifications

  • 1/8″ diameter probe
  • 1″ long x 90 degree bend with spring strain relief
  • 24 ga. fiberglass leads with stainless steel overbraid
  • Spade lugs
  • Grounded construction

  

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  Nissei Nozzle Thermocouple Standard Specifications

  • 30, 40 or 50mm diameter
  • 40mm will fit 1.5″ diameter
  • 3/16″ wide band
  • Spade lugs
  • 24 ga. fiberglass leads with stainless steel braid
  • Grounded construction

  

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  Shallow Nozzle Thermocouple Standard Specifications

  • 1/4-28 N F thread
  • 24 ga. fiberglass leads with stainless steel braid
  • Spade lugs
  • Grounded construction

  

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  Washer Style Thermocouples Standard Specifications

  • 3/16″ (.188″ ID)
  • 5/16″ (.328″ ID)
  • 24 ga. fiberglass leads with SS overbraid
  • Grounded construction
  • Spade lugs

  

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  Bendable Probe Thermocouple Standard Specifications

  • 1/8″ or 3/16″ diameter probe
  • 6″ and 12″ probe lengths
  • 24 ga. fiberglass leads with stainless steel armor
  • Spade lugs
  • 1/8″ NPT compression fitting supplied

  

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  Hose Clamp Thermocouple Standard Specifications

  • 1/2″ wide stainless steel clamp
  • 5/16″ hexagon and slotted screw drive
  • 48″ 24 ga. fiberglass leads with stainless steel overbraid
  • Spade lugs
  • Grounded construction

  

   

  Thermocouple Calibration Color Code Guide