Products

Sheath type thermocouple

Metal Sheathed thermocouple is comprised of metal sheath in which the thermoelectric elements are embedded in highly compacted magnesium oxide (MgO) insulation.
The construction guarantees a superb insulation quality and high resistance to pressure, and has, in addition, an excellent flexibility, which has been given to it by annealing in a proper method

Features

  1. Fast response speed
    The sheathed thermocouple has a higher responsiveness than the conventional protective tube type thermocouple, because the thermocouple wire, insulation material, and protective tube are integrated.
  2. Excellent bending properties and impact resistance
    Since it is molded into a high density, it has a large mechanical strength and can be bent with a radius of at least twice the outer diameter of the sheath.
  3. Excellent corrosion and pressure resistance
    Magnesium-oxide (MgO) is densely compressed and filled in the metal-sheathing, making it airtight, less susceptible to external atmospheres and withstanding the highest 350MPa of pressures.
  4. Wide temperature measuring range
    Temperature can be measured from-200℃ to 1500℃ (using a special sheath thermocouple).
  5. Highly stable at high temperatures and in reducing atmospheres (AD THERMIC)
  6. Achieved approximately five times the durability compared to INCONEL®600※1 in our test by using the sheath material is a special material with excellent oxidation resistance and high-temperature strength (HYPER THERMIC)

※1 INCONEL&reg is a registered trademark of Special Metal Corporation.

Use

  • Steel, non-ferrous metal
    • Temperature of hot metal and molten steel
    • Temperature of various furnaces such as blast furnaces, converters, soaking furnaces, annealing furnaces, electric furnaces, and vacuum induction furnaces
    • Continuous casting, heat treatment, strip mill temperature
    • Temperatures of refractory metals
  • Electricity, gas
    • Tube wall temperatures of boilers, superheaters, reheaters, etc.
    • Fluid temperatures such as steam cooling water, water supply, drainage, and oil
    • Temperature of turbine casings, metals, bearings, etc.
    • Heating temperature of the furnace
    • Temperature of producer gas, water gas, etc., and temperature of LPG, LNG
  • Electrical and electronic
    • Temperature of motor, transformer, coil of generator, insulating oil, etc.
    • Temperature during the manufacturing process of transistors, integrated circuits, electronic tubes, etc.
  • Ceramic
    • Baking furnaces for cement, glass, bricks, earthenware, etc., rotary kilns, tunnel kilns, flues, preheating furnaces, slow cooling furnaces
  • Chemical
    • Temperature of the reaction tower and reactor for gases and liquids
    • Temperature of the high-temperature generator
    • Component temperature of chemical mechanical equipment
    • Sulfidation temperature of rubber
    • Temperature of plastic extruders and molding machines
    • Temperature of a cracking line, a dewaxing column, and a fractionating column during a petroleum refining process
    • Temperature during the pharmaceutical pellet molding process
    • Temperature during the synthetic fiber manufacturing process
  • Shipbuilding
    • Temperature of LNG, LPG tank wall
    • Temperature of the heat exchanger
    • Temperature of each metal part
    • Temperature of the diesel engine
  • Nuclear reactor
    • Temperature of the reactor, the reactor bottom, the cooling gas, the cooling water, and the fuel rods
  • Aircraft and rockets
    • Temperature of high-pressure, high-temperature fuel gas and exhaust gas from jet engines, rocket engines, etc.
  • Food products
    • Temperature during refining sugar, meat, baking, confectionery, brewing and other food manufacturing processes
  • Other
    • Temperature such as plasma arc, electron beam, single crystal generation, various combustion experiments, ultra-high temperature physical properties, and cryogenic physical properties research
    • Temperature of various heat exchangers, incinerators, etc.

Specifications

Types of Thermocouple K, E, J, T, N
Sheath O.D. (mm) φ0.25 φ0.5 φ1.0 φ1.6 φ2.2 φ3.2 φ4.8 φ6.0 φ6.4 φ8.0
Sheath Material SUS304L SUS316L SUS310S INCONEL®600※1 PtRh10% Tantalum hasteroic X※2
※Other special materials available
Class JIS classes 1, 2, and 3
IEC1、2、3
ASTM SP and ASTM STD
Pair Single double triple
Hot Junctions Type I(Grounded), Type II(Ungrounded), Type III(Exposed)

※ Elements other than the above, sheath outer diameter and sheath material are available separately. Contact CKD for more information.
※1 Inconel「Inconel®」is a registered trademark of Special Metal Corporation.
※2 Hastelloy「Hastelloy®」is a registered trademark of Harnes International, Inc.

Standard Models

TMB type Flexible Shield Lead Type
TMES(L) type Metal Connector Type
TMDS(L) type Quick Connector Type
TMH type Terminal Head Type
TMN type Screwed-in Plain Nipple Type
TMPF type Flanged type
TMNB type With screw-in BS
TMNF type Flange Nipple Type
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