Magnesium Oxide (MgO) Insulated Thermocouples, Thermocouple, Manufacturer of Thermocouple, Thermocouple Type, Thermocouple Assemblies, Resistance Temperature Detectors, India

Nutech Engineers
143-D Government Industrial Estate, Kandivli West, Mumbai - 400 067
Phone : 91-22-28683549 / 28684580,  Fax : 91-22-28674580
email : nutechen@vsnl.com , nutechen@mtnl.net.in,
info@nutechengineers.com,  sales@nutechengineers.com

Temperature Sensing Devices

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MgO Thermocouple Wire

BARCOPAC Thermocouple Wire -- The individual thermocouple wires are uniformly insulated with compacted MgO and protected by a stainless steel or Inconel sheath.  Bulk wire is provided without junction or terminal connections, its ends are sealed to prevent contamination.

Single Element (2 Wire)

Calibration Type Sheath Maximum Suggested Temperature oC
Material Outside Dia in inches
J 304-SS .040 538
J Inconel .040 538
J 304 SS .063 538
J Inconel .063 538
J 316 SS .063 538
J 310 SS .063 538
J 304 SS .125 593
J Inconel .125 593
J 316 SS .125 593
J 310 SS .125 593
J 304 SS .188 649
J Inconel .188 649
J 316 SS .188 649
J 310 SS .188 649
J 304 SS .250 704
J Inconel .250 704
J 316 SS .250 704
J 310 SS .250 704
K 304-SS .040 538
K Inconel .040 871
K 316 SS .40 538
K 310 SS .040 538
K 304 SS .063 593
K Inconel .063 927
K 316 SS .063 593
K 310 SS .063 927
K 304 SS .125 649
K Inconel .125 982
K 316 SS .125 649
K 310 SS .125 982
K 304 SS .188 732
K Inconel .188 1038
K 316 SS .188 732
K 310 SS .188 1038
K 304 SS .250 816
K Inconel .250 1093
K 316 SS .250 816
K 310 SS .250 1093
E 304 SS .040 538
E 304 SS .063 538
E 304 SS .125 593
E 304 SS .188 649
E 316 SS .125 760

Single Element (2 Wire)

T 304 SS .040 260
T 304 SS .063 371
T 304 SS .125 371
T 304 SS .188 371
T 304 SS .250 371
R Inconel .063 982
R Inconel .125 982
S Inconel .063 982
S Inconel .125 982

These are general suggestions based on consideration of wire gauge and sheath wall thickness, and in no way are meant to indicate successful usage at this temperature, or the inability for use above this temperature.

Dual Element (4 Wire)

Calibration Type Sheath Maximum Suggested Temperature oC
Material Outside Dia in inches
J 310 SS .063 538
J 304 SS .125 593
J 304 SS .188 649
J 304 SS .250 705
K Inconel .063 927
K Inconel .125 983
K Inconel .188 1038
K Inconel .250 1094
Sheath Thickness and Wire Size (AWG)
Sheath OD
inches		 Tolerance
on OD		 Wall
Thickness		 Nominal
AWG wire size
Single Dual
.040 +.001/-.0005 .006 33 N/A
.063 +/-.001 .009 28 29
.125 +.002/-001 .017 22 23
.188 +.002 /-.001 .025 19 20
.250 +.003/-.001 .033 16 19

*AWG for R & S is 30 for .063 OD and 26 for .125 OD

Weight per foot (approx.) and standard maximum continuous lengths
OD #/100 feet Std. Max Lengths
.040 0.4 500  ft
.063 0.8 250 ft
.125 2.8 80 ft
.188 5.0 35 ft
.250 12.5 30 ft

Maximum length for type R or S is 20 ft.

Consult for Longer length

Fractional, Decimal and Millimeter Equivalents
Inches Millimeters
Fractions Decimals
1/25 .040 1.02
1/16 .063 1.59
1/8 .125 3.18
3/16 .188 4.76
1/4 .250 6.35
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By JPN