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Tube & Wire Thermocouples

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TGU style general purpose thermocouple probes, sometimes referred to as tube and wire thermocouples are available in many standard and custom configurations. These are economical thermocouple assemblies that usually consist of a soft insulated fiberglass or Teflon wire that is housed in a stainless steel tube.

Although this is a very simplistic thermocouple design, it is very versatile and durable if specified properly. Diameters of .093” to .500” are available in almost any length and can be formed with 45° and 90° bends. Almost any type of lead wire or thermocouple connector can be used, which allows for a great deal of flexibility in designing for low-cost applications.

Durex Industries manufactures general use thermocouple sensors for a wide variety of applications up to 800°F (426°C). Sheath material is 304 stainless steel. Type J (Iron-Constantan) calibration is standard.

Typically, this type of sensor assembly is used in foodservice equipment, packaging equipment, medical equipment, laboratory and general industrial applications. Durex Industries designs and manufactures temperature sensors to meet the requirements of commercial and industrial applications.

Style TGU0 with Standard Plug and Crimp Adapter

Thermocouple-Style-TGU0

Part Number Configuration - Example: TGU0-JG-C12H

TGU0 - TC Type + Junction - Sheath Diameter + "L" Dimension

Style TGU1 with Standard Jack and Crimp Adapter

Part Number Configuration - Example: TGU1-JG-C12H

TGU1 - TC Type + Junction - Sheath Diameter + "L" Dimension

Style TGU2 with Standard Lead Wire Straight, TGU4 with Standard Lead Wire at 45° Bend, TGU9 with Standard Lead Wire at 90° Bend

Part Number Configuration - Example: TGU2-JG-V18D-035H0

TGU2 - TC Type + Junction - Sheath Diameter + "L" Dimension - "A" Dimension + Leadwire Type + Termination Option

Part Number Configuration - Example: TGU4-JG-V18D-035H0

TGU4 - TC Type + Junction - Sheath Diameter + "L" Dimension - "A" Dimension + Leadwire Type + Termination Option

Part Number Configuration - Example: TGU9-JG-V18D-035H0

TGU9 - TC Type + Junction - Sheath Diameter + "L" Dimension - "A" Dimension + Leadwire Type + Termination Option

Tube & Wire Thermocouples Specs & Options

Thermocouple Types

Thermocouple Type Codes				Limits of Error
E	J	K	T	Standard Limits
2	3	4	8	Special Limits

Junction Type

Code	Single Junction
G	Grounded
U	Ungrounded

Sheath Diameters

Code	O.D. Size
T	.020” O.D.
Y	.032" or 1/32" O.D.
W	.040" O.D.
A	.062” or 1/16” O.D.
B	.125” or 1/8” O.D.
V	.156” or 5/32” O.D.
C	.188” or 3/16” O.D.
D	.250” or 1/4” O.D.
E	.313” or 5/16” O.D.
F	.375” or 3/8” O.D.
H	.500” or 1/2” O.D.

Dimensional Chart

"L" Dimensions				"B" Dimensions				"A" Dimensions				Fractional Dimension
"L" Dimensions				"B" Dimensions				"A" Dimensions				Letter Codes
“L” dimensions are specified in whole inches and a single alpha character which represents a fraction. Enter the three digit code as follows:				“B” dimensions are specified in fractions from ⅛” to 1”. Use the single alpha character to indicate the tip length. Enter the code as follows:				“A” dimensions are specified in whole inches only. Enter the three digit code as follows:		1/16"	A	11/16"	L
										1/8"	B	3/4"	M
										3/16"	C	13/16"	N
										1/4"	D	7/8"	P
										5/16"	E	15/16"	R
3"	030	10 5/8"	10K							3/8"	F	1"	S
4 1/2"	04H	12"	120	1/8"	B	5/8"	K	9"	009	7/16"	G	0	No
6 1/4"	06D	15 3/8"	15F	1/4"	D	3/4"	M	12"	012	1/2"	H
7 7/8"	07P	17 3/4"	17M	3/8"	F	7/8"	P	36"	036	9/16"	J
9 5/8"	09K	22 1/8"	22B	1/2"	H	1"	S	144"	144	5/8"	K

Lead Wire Type

Leadwire Code	Leadwire Type Description
G	Fiberglass Leadwire with Overall Fiberglass Jacket
H	Stranded Fiberglass Leadwire with SS Overbraid Shield
J	Stranded Fiberglass Leadwire with SS Armor Cable Shield
K	Teflon Leadwire with Overall Teflon Jacket (400°F Max.)
Standard assemblies supplied with stranded leadwire conductor. Solid conductor available upon request.