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Mineral Insulated Thermocouples

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MgO Filled Thermocouples for Industrial Temperature Measurement

MgO Filled Thermocouples commonly abbreviated as MI Thermocouples are used for indutrial temperature measurement using a pair of dissimilar metals which are insulated with a compact mass of MgO. Seperated elements filled with MgO are covered using an outer tube with a variety of MOC which may be SS, Inconel or its grades. They are rugged in nature and bendable, and their fairly high-temperature ratings make MI thermocouples a popular choice for a multitude of temperature measuring applications.

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Our Mineral Insulated Thermocouples Catalog

About Mineral Insulated Thermocouples

TypeJ, K, T, E, N, R, S
Element size (MI)0.25, 0.5, 1.0, 1.5, 3.0, 4.5, 6.0, 8.0 mm Other sizes on request
Sheath MaterialSS321, SS316, SS310, HRS 446, Inconel 600, Nimonic, Pyrosil, Platinum etc.
ConfigurationSimplex/ Duplex/ Multipoint
Configuration
  • Miniature Thermocouples with minimum of 0.25 m Dia
  • Swaged Tip Thermocouples
  • Tube Temperature Skin Type Thermocouples
  • Special Sensors as per ASTM-E235 for critical applications
  • High Wall Thickness

 

TypeNames of MaterialsApplication RangePDF’s
JIron (+) Constantan (-)-40 to 750ºCPdf
KChromel (+) Alumel (-)-200 to 1200ºCPdf
TCopper (+) Constantan (-)-200 to 350ºCPdf
EChromel (+) Constantan (-)-200 to 900ºCPdf
NNicorsil (+) Nisil (-)-200 to 1200ºCPdf
RPlatinum 13% Rhodium (+) Platinum (-)0 to 1600ºCPdf
SPlatinum 10% Rhodium (+) Platinum (-)0 to 1600ºCPdf

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